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# Drain campaign: spend 2,638 points, then close the account
Decision (2026-07-18): use the full points balance on southern imaging, then cancel
the membership. Constraints and policy facts that shape the plan:
- Balance 2,638 points; Plan-40 renews 12 Aug 2026 (GBP 32). Cancel BEFORE renewal.
- Points cannot be refunded, and cannot be used without an active subscription
(support article 142963). So: drain first, cancel last, in that order.
- **Cancellation target: 10 Aug 2026**, two days before renewal. Cancellation is
submitted via MyAccount/Cancel.aspx and requires explicit user confirmation on the
day; Claude must not submit it unprompted.
- Rates: see the rate card in state/NOTES.md. Billing is per minute of imaging time.
- Moon: bright nights roughly 24 Jul - 2 Aug (full ~29 Jul); dark again 5-12 Aug.
Full-moon week includes free access promotions; paid draining focuses on dark and
grey nights, narrowband carries the bright week.
- Scope availability is volatile (much of Chile offline as of 18 Jul); re-check the
status line on go.itelescope.net before every session and substitute freely.
## Session ledger
Update after every run: date, scope, target, imaging minutes, points charged
(from account/history.aspx), cumulative spend.
| Date | Scope | Target | Plan file | Imaging | Est. pts | Actual pts | Notes |
|---|---|---|---|---|---|---|---|
| 2026-07-19 | T33 | 47 Tuc | ngc104-test.txt | 17 min | 0 (free) | DID NOT RUN | reservation 749228 expired unused: no images, no logs on T33 (checked 20 Jul); grid shows reschedule=No despite the flag being set at booking |
| 2026-07-19 | T59 | NGC 6744 | ngc6744-t59.txt | 180 min | ~240 (0% moon disc. until 21 Jul) | **381** | SUCCESS (txn 851148): ran 00:05:22-03:29:56 SSO, Time Used 3h24m32s, 0% moon disc. Full dataset on scope server: L 15x300s BIN1, RGB 7x300s each BIN2; previews checked, round stars, galaxy clean: no refund case. Effective rate ~112 pts/hr of WALL time (not the 80/hr imaging-time estimate: see NOTES rate correction) |
| 2026-07-20 | T33 | NGC 6752 | ngc6752.txt | 17 min | 0 (free) | DID NOT RUN | reservation 749229 expired unused: no images, no logs (checked 20 Jul 20:30 UTC, after window) |
| 2026-07-21 | T32 | Centaurus A | cena-t32.txt | 120 min | ~350 (x1.6 model) | **160** | SUCCESS (txn 851344): ran 18:50:24-21:16:19 SSO local (08:50-11:16 UTC), Time Used 2h25m55s, 25% moon discount. Images present: /images/qisback/T32/NGC5128 on t32.itelescope.net:8032. Came in at 0.46x the x1.6 model, i.e. LESS than the original estimate: see the rate correction below |
Cumulative spend: 541. Balance after (verified GetAccountStatus 2026-07-21
11:40 UTC): **2,097**.
**Rate correction (2026-07-21, supersedes the 2026-07-20 x1.6 warning).** Two
paid runs now bracket the question, and both bill EXACTLY the plan's imaging
minutes, not wall-clock:
| Scope | Plan imaging | Wall (Time Used) | Billed | Points per imaging hour |
|---|---|---|---|---|
| T59 | 180 min (36x300s) | 3h24m32s | 381 | **127** (0% moon) |
| T32 | 120 min (24x300s) | 2h25m55s | 160 | **80** (25% moon) |
381 = 3.00 h x 127 and 160 = 2.00 h x 80, both to the point. So billing is on
imaging time as originally documented, and the wall-clock theory is dead. What
is wrong is the rate card in NOTES.md: it lists T59 at 80/hr (actual 127) and
T32 at 146/hr (actual 80 even after the 25% moon discount, so a base near
107/hr). The two look transposed, but two samples cannot prove that. **Do not
apply a blanket multiplier.** Derive each scope's effective rate from its first
actual bill, and treat any not-yet-observed scope's card rate as +/-60%.
## Planned allocation (~2,600 points, adapt as scopes/weather allow)
**Phase 1, dark nights now - 23 Jul (~1,030 pts):**
- T59 NGC 6744 LRGB, 3 h, ~240 (scheduled 19 Jul)
- T32 Centaurus A LRGB, 2 h, ~292: early UK-afternoon window while it is high
- T8 Corona Australis dust complex LRGB, 2 h, ~260
- T70 (Chile) Scorpius tail / Prawn super-wide LRGB, 2 h, ~238
**Phase 2, bright nights 24 Jul - 2 Aug (~440 pts, narrowband only):**
- T59 NGC 6188 in Ha/OIII/SII 5nm, 3 h total, ~240
- T8 Ha on the Cat's Paw / War and Peace field, 1.5 h, ~195
- Plus any full-moon free promotions for clusters (cost 0, not part of the drain)
**Phase 3, dark nights 3 - 10 Aug (~1,130 pts):**
- T8 SMC + 47 Tucanae in one frame, 3 h LRGB, ~390: the signature shot, SMC well
placed in the second half of the SSO night by August
- T8 or T59 Large Magellanic Cloud attempt if it clears the elevation limits late
in the window; otherwise Tarantula on T32, 2 h, ~292
- Remainder (~450): best-of list: repeat the strongest target for more depth, or
Chile scopes (T71 106/hr, T73 224/hr) if they return from maintenance: Tarantula
and NGC 1313 preferred. Aim to land the balance under ~50 points.
## Booked reservations (all with plan attached + reschedule flag)
| ID | Scope | Night of (SSO/obs local) | Slot | Plan | Est. pts | Status (2026-07-20) |
|---|---|---|---|---|---|---|
| 749227 | T59 | 19 Jul | 00:05-03:45 | ngc6744-t59.txt | ~240 | COMPLETED, billed 381 |
| 749228 | T33 | 19 Jul | 00:05-00:50 | ngc104-test.txt | 0 | EXPIRED unused (no run, no auto-reschedule) |
| 749229 | T33 | 20 Jul | 00:05-00:50 | ngc6752.txt | 0 | EXPIRED unused (no run, no auto-reschedule) |
| 749230 | T8 | 26 Jul | 21:35-23:55 | catspaw-t8.txt | ~146 (25% moon disc.) | still booked |
| 749302 | T32 | 21 Jul | 18:50-21:50 | cena-t32.txt | ~350 (x1.6 rate, 25% moon disc.) | COMPLETED, billed 160. EVENING slot: T32 has a 35 deg elevation floor and Cen A culminates ~17:10 before dark, sinking to 11 deg by the old 00:35 slot (which could never have run). Ran 18:50-21:16, finishing 34 min early (plan complete, not a fault); images landed under /images/qisback/T32/NGC5128 |
| (id not captured) | T8 | 22 Jul | 21:45-00:45 | cra-t8.txt | ~250 | booked + MySummary-verified 2026-07-21 11:45 UTC. This is queue #2 finally placed: see the resolution note below. Runs 11:45-14:45 UTC 22 Jul |
| (id not captured) | T32 | 22 Jul | 18:50-19:50 | hdrcore-t32.txt | ~25 | **CANCELLED 2026-07-21 ~15:00 UTC, never ran, 0 points spent.** Booked to fix a saturated Cen A nucleus; the nucleus is not saturated (see the correction below). Deleted from MySummary with the other three reservations verified intact afterwards; quota back to 6:05/8:00 |
| 749314 | T33 | 21 Jul | 00:05-00:50 | ngc104-test.txt | 0 (free) | booked + grid-verified 2026-07-21 08:55 UTC. 47 Tuc first-light retry, third attempt. Runs 14:05-14:50 UTC 21 Jul. Reschedule flag again No (free scopes never rebook) |
The T33 first-light test is now on its THIRD booking (749314); the two prior free
reservations expired unused. If this one also fails to run, the problem is not the
booking but the auto-start on free scopes: escalate to walk-in (POST plan.asp per
plans/README.md) or drop the free-imaging objective.
## Booking queue (blocked by the rolling 8-hour reservation allowance)
Book in order as quota frees (a session completing releases its hours). Exact
New.aspx parameters; all plans already uploaded and verified on their scopes.
Verify every booking via Edit.aspx?id= probing (sequential ids), NOT the grid.
| # | Scope id | start | end | start sel | end sel | Plan | Est. pts |
|---|---|---|---|---|---|---|---|
| 1 | BOOKED as 749302 (see table above); the original 00:35 slot was an error, Cen A is an EVENING target (35 deg floor on T32) | | | | | cena-t32.txt | ~350 |
| 2 | BOOKED 2026-07-21 for the night of 22 Jul, 21:45-00:45 (see table above); the 01:35 slot was blocked by hajo and low anyway | | | | | cra-t8.txt | ~250 |
| 3 | GRAS059 | 2026-07-25T20:35:00 | 2026-07-25T23:55:00 | 8:35 PM | 11:55 PM | ngc6188-haoiii-t59.txt | ~120 (disc.) |
| 4 | GRAS059 | 2026-07-27T20:35:00 | 2026-07-27T23:05:00 | 8:35 PM | 11:05 PM | ngc6188-sii-t59.txt | ~90 (disc.) |
| 5 | GRAS008 | 2026-08-08T02:35:00 | 2026-08-08T06:05:00 | 2:35 AM | 6:05 AM | smc47tuc-t8.txt | ~390 |
| 6 | GRAS032 | 2026-08-09T03:05:00 | 2026-08-09T06:05:00 | 3:05 AM | 6:05 AM | tarantula-t32.txt | ~365 |
| 7 | (T70, blocked: server unreachable) | night TBD before 5 Aug | ~2.5h | | | scorpius-t70.txt (in scratch, re-upload needed) | ~238 |
| 8 | WITHDRAWN: booked then cancelled 2026-07-21, premise was wrong (see below) | | | | | hdrcore-t32.txt | 0 |
### CORRECTION (2026-07-21): the Cen A nucleus was never saturated
An earlier entry here claimed the 21 Jul Cen A data came back with a saturated
nucleus, and booked a short-exposure core set on that basis. **The claim was
wrong and the booking has been cancelled without running, at a cost of zero
points.**
The 65313 ADU figure came from taking the maximum pixel inside a 300 x 300 px
box centred on the frame. That measures the brightest thing near the middle of
the image, which is not the same as measuring the galaxy: it was a foreground
star 128 px (69 arcsec) from the nucleus, sitting inside the box. Median
filtering the inner 800 x 800 px to remove stars leaves the galaxy peaking at
**1944 ADU**, about a thirtieth of the clip level, with **not one star-free
pixel above 30000 ADU**. The core looked blown in the first processed image
because of the display stretch, whose white point was set by field stars, and
re-rendering the same data with a second tone curve scaled to the galaxy
recovered it fully.
**The habit that IS worth keeping, in corrected form:** before booking extra
time to fix a saturated core, *measure whether it is saturated* - median-filter
the inner region to remove stars first, and check where the frame's bright
pixels actually are. The check costs a minute. 47 Tuc and the SMC (queue #5)
may still genuinely saturate, a dense cluster core being the fastest thing there
is to clip, so run the same measurement on their data before assuming either
way. plans/hdrcore-t32.txt stays in the repo (and on T32) as a ready-made
ladder if one of them turns out to need it.
### Session 2026-07-21 ~08:55 UTC (booking round run early, before Cen A ran)
Done this session: free T33 47 Tuc retry booked as 749314 (grid-verified). NOT
done, both correctly deferred:
- **Cen A verify**: 749302 had not run yet (starts 08:50 UTC, this session ran at
08:48). Verify after 11:50 UTC.
- **cra-t8 (#2)**: blocked twice over. (1) Quota: Cen A holds 3h until it
completes ~11:50 UTC; with Cat's Paw (2h20m) + Cen A (3h) + T33 (45m) held,
under ~1h55m is free, not enough for a 3h slot. (2) Conflict: user hajo holds
T8 00:25-02:25 SSO local (res 749207), overlapping our planned 01:35-04:35.
**cra-t8 resolution options** (pick with a live grid re-check when quota frees):
- (a) Shift to 02:25-05:25 after hajo. Downside: Corona Australis culminates
~22:30 SSO local, so by 02:25-05:25 it is 4-6.5h past meridian and low; poor.
- (b) PREFERRED: move cra-t8 to the NEXT night, 2026-07-23T01:35-04:35 (night of
22 Jul SSO), same clock time, avoids hajo, keeps decent altitude. Re-check that
night's T8 grid first. One night's slip is fine inside the drain window.
- (c) Earlier slot 21:25-00:25 (before hajo) is astronomically best but starts
11:25 UTC, before Cen A releases quota at 11:50; not bookable in time.
The scheduled 12:13 UTC job (ae3af497) fires after Cen A completes: it should
verify Cen A + bill, then book cra-t8 by option (b) unless the grid has changed
(hajo may cancel, opening option (a)/original). At corrected (x1.6) rates the
full remaining queue runs ~2,530 vs 2,257 balance (~270 over): once actual bills
for Cen A and CrA land, trim Phase 3 (shorten Tarantula #6 or the SMC slot)
to land the balance near zero.
### Session 2026-07-21 ~11:40 UTC (Cen A verify + cra-t8 booked)
Ran ahead of the 12:13 UTC scheduled job, after Cen A had finished at 11:16 UTC.
- **Cen A verified**: completed, billed 160, NGC5128 images on the scope server.
Ledger and rate model updated (the x1.6 model is withdrawn: see the rate
correction above).
- **cra-t8 booked**, but on a better slot than the deferred option (b). Probing
New.aspx for the original 01:35-04:35 returned "Conflicting reservation. Start
time must be later than 2:25 AM" (hajo, as predicted), confirming that option
(a) was all that remained on the night of 21 Jul, and it puts Corona Australis
3.5-6.5 h past the meridian. Instead the run went to the EVENING of the next
night: **2026-07-22T21:45 - 2026-07-23T00:45 SSO local**, which brackets the
~22:30 culmination, so the whole 115 min of imaging happens near the zenith.
This is option (c)'s geometry on option (b)'s night; the reason (c) was
unbookable earlier (quota held by Cen A) had expired by the time Cen A
completed. Grid probing showed no conflict on either side of the slot.
Verified in Reservation/MySummary.aspx; quota now 6:50 / 8:00.
- Moon on the night of 22 Jul is ~57% illuminated, the last usable night before
the bright-week narrowband phase. LRGB on a dust complex under a half moon is
a compromise, but the alternative is slipping a Phase 1 broadband target into
the bright week, which is worse.
- Reservation id NOT captured: the confirm response carries only
`ModalStatic.result("OK")` and MySummary does not print ids. Nothing depends
on the id unless the booking must be edited or deleted, in which case find it
by probing Edit.aspx?id= around the current sequence (749314 was issued
~08:55 UTC on 21 Jul).
- Budget: 2,097 left, 19 nights to 10 Aug. Remaining queue at card rates is
roughly 1,300, which UNDER-spends by ~800. With the x1.6 model withdrawn, the
next planning session should add work rather than trim it: candidates are a
second narrowband night on T59 (observed 127/hr, the only scope with a
trustworthy rate), or extending the Phase 3 SMC and Tarantula runs, both of
which have the sky time to absorb longer plans.
Substitution rules: if T71 returns to service, move #2 and #7 to T71 (faster
f/2.8 optics, cheaper 106 pts/hr; re-cut the plans for 1.55"/px). If T70's
server returns, book #7 as-is. Check the go.itelescope.net status line before
each booking round. After #6, allocate the remaining balance (~450 pts) to a
final deep session on the best-performing scope, sized to land under 50 pts.
**10 Aug: verify balance is near zero, download ALL data from data.itelescope.net,
then (with explicit user confirmation) cancel via MyAccount/Cancel.aspx.**
## Operational notes
- Sessions are now RESERVED, not walk-in: upload the plan to the scope, then book
it at reservations.itelescope.net with the plan attached (procedure in
plans/README.md); iTelescope auto-starts the plan at reservation start and the
reschedule flag retries weather losses. Claude sessions monitor rather than
drive. T59 moon discount correction: 0% until 21 Jul, 25% from 22 Jul.
- Cron jobs live only in an open Claude session; if a day's session has no live
session to fire it, the user prompts "run today's drain session" and any session
picks it up from this file plus state/TODO.md.
- Bad-data protection: iTelescope refunds points for weather-ruined runs on
request; check each session's images before marking the ledger final.
- Final data sweep before cancellation: everything on data.itelescope.net AND the
per-scope /images/qisback/ folders.

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> [!IMPORTANT]
> **This repository has moved.** Since 2026-07-21 it lives on as the
> `itelescope/` directory of
> **[astrophotography](https://git.discworld.casa/laurence/astrophotography)**,
> merged with the processing pipeline. Both histories were preserved.
>
> **Do new work there, not here.** This copy is kept read-only-in-spirit until
> the drain campaign closes (10-12 Aug 2026), because sessions are running most
> nights and nothing should break mid-campaign. Anything committed here after
> the merge will be stranded.
# Default Workflow
This file is the entry point for any Claude Code session working under the Default

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@ -1,14 +1,3 @@
> [!IMPORTANT]
> **This repository has moved.** Since 2026-07-21 it lives on as the
> `itelescope/` directory of
> **[astrophotography](https://git.discworld.casa/laurence/astrophotography)**,
> merged with the processing pipeline. Both histories were preserved.
>
> **Do new work there, not here.** This copy is kept read-only-in-spirit until
> the drain campaign closes (10-12 Aug 2026), because sessions are running most
> nights and nothing should break mid-campaign. Anything committed here after
> the merge will be stranded.
# itelescope
Reference and review of the [iTelescope.net](https://www.itelescope.net/) remote
@ -17,8 +6,6 @@ book for a given target.
- **[TELESCOPES.md](TELESCOPES.md)**: the full review, grouped by observatory, with a
"choosing a telescope" guide at the end.
- **[TARGETS.md](TARGETS.md)**: southern-sky targets invisible from the UK, matched
to scopes and to the time of year to book them.
- **[data/itelescope-telescopes.csv](data/itelescope-telescopes.csv)**: snapshot of
the network's maintained specs sheet (source of truth for the numbers).
- **state/**: project state under the Default Workflow.

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# Southern targets: what the UK can never show you
A target guide for imaging objects that are invisible (or hopeless) from the UK,
using the southern half of the iTelescope network: Siding Spring, Australia (Q62)
and Deep Sky Chile (X07). Companion to [TELESCOPES.md](TELESCOPES.md).
## The visibility rule from the UK
From latitude 51.5°N (southern England), an object's maximum altitude is
`90° - 51.5° + declination`:
- **Dec below about -38°: never rises.** These objects cannot be imaged from the UK
at all, ever.
- **Dec -25° to -38°: technically rises, practically hopeless.** Culminates under
~15° altitude, buried in atmosphere and murk.
- Dec -10° to -25°: imageable from the UK but always low and compromised; far better
from the southern sites.
Everything below is grouped by those tiers, then matched to scopes and to the time
of year when it is best placed from the southern sites.
## Tier 1: never visible from the UK (dec < -38°)
### The Magellanic Clouds (the headline act)
| Target | Dec | Best scope | Notes |
|---|---|---|---|
| Large Magellanic Cloud | -69° | T8 | The whole LMC just fits T8's 4 x 4 degree field |
| Tarantula Nebula (NGC 2070) | -69° | T73, T17 | Core detail; the finest emission nebula in either sky |
| Small Magellanic Cloud + 47 Tucanae | -72° | T8 | Both in a single T8 frame, a unique composition |
| 47 Tucanae (NGC 104) alone | -72° | T33 (free), T73 | Second-finest globular in the sky |
### Carina and Crux region
| Target | Dec | Best scope | Notes |
|---|---|---|---|
| Eta Carinae Nebula (NGC 3372) | -59° | T71 | Fills T71's 2.7 x 1.8 degree field perfectly; narrowband showpiece |
| Carina to Crux widefield | -60° | T70 | The richest stretch of the Milky Way in one 8-degree frame |
| Southern Pleiades (IC 2602) | -64° | T71, T75 | Bright open cluster |
| Running Chicken (IC 2944) | -63° | T71, T75 | Emission nebula with Bok globules |
| Wishing Well Cluster (NGC 3532) | -58° | T71 | Reportedly the best open cluster in the sky |
| Coalsack + Southern Cross | -60° | T70 | Dark nebula composition |
### Centaurus and the southern globulars
| Target | Dec | Best scope | Notes |
|---|---|---|---|
| Omega Centauri (NGC 5139) | -47° | T59, T17 | The largest globular cluster known; needs the ~40 arcmin fields |
| Centaurus A (NGC 5128) | -43° | T17, T32, T73 | Iconic dust-lane radio galaxy |
| NGC 4945 | -49° | T73 | Big edge-on spiral, underimaged |
| NGC 6752 (Pavo globular) | -60° | T33 (free) | Third-brightest globular |
### Ara, Norma and the Scorpius tail
| Target | Dec | Best scope | Notes |
|---|---|---|---|
| Fighting Dragons of Ara (NGC 6188) | -49° | T71 | Dramatic narrowband target |
| Prawn Nebula (IC 4628) | -40° | T71, T75 | Large, faint, great in Ha |
| NGC 6231 + Table of Scorpius | -42° | T71 | Rich cluster region |
### Far-southern galaxies
| Target | Dec | Best scope | Notes |
|---|---|---|---|
| NGC 6744 (Pavo) | -63° | T73, T17 | Milky Way lookalike spiral |
| NGC 1313 (Topsy-Turvy) | -66° | T73 | Distorted starburst spiral |
| NGC 1566 (Spanish Dancer) | -55° | T73 | Grand-design face-on spiral |
| NGC 2070 region galaxies | -69° | T17 | See Magellanic section |
### Southern nebulae, supernova remnants and planetaries
| Target | Dec | Best scope | Notes |
|---|---|---|---|
| Vela SNR | -45° | T70 | Huge filamentary shell, needs the 8-degree field |
| Gum Nebula | -43° | T70 | 36 degrees across; even T70 mosaics it |
| Southern Ring (NGC 3132) | -40° | T73 | Small bright planetary |
| Toby Jug Nebula (IC 2220) | -59° | T73 | Reflection nebula |
## Tier 2: hopeless from the UK (dec -25° to -38°), excellent from the south
| Target | Dec | Best scope | Notes |
|---|---|---|---|
| Cat's Paw (NGC 6334) | -36° | T71 | Narrowband showpiece |
| War and Peace (NGC 6357) | -34° | T71 | Pairs with the Cat's Paw in one T75 framing |
| NGC 1365 (Great Barred Spiral) | -36° | T73, T17 | The archetypal barred spiral, Fornax |
| Fornax cluster core | -35° | T17, T32 | Galaxy cluster field |
| M83 (Southern Pinwheel) | -30° | T73, T17 | Face-on spiral, superb from Q62/X07 |
| NGC 300 and NGC 55 (Sculptor) | -37°/-39° | T17, T75 | Nearby resolved spirals |
| NGC 253 (Sculptor Galaxy) | -25° | T17, T32 | Huge dusty starburst, low and ruined from the UK |
| Corona Australis dust complex | -37° | T71, T75 | Reflection nebula and dust river |
## When to book what (from the southern sites)
Seasons refer to what is well placed in the evening-to-midnight sky at Siding Spring
and Deep Sky Chile. Siding Spring scopes have 30-35 degree minimum elevation limits,
so aim within a few hours of culmination; T70 in Chile can go to the horizon.
- **Jan-Mar:** Tarantula and the LMC, NGC 1313, Vela SNR and the Gum Nebula, Carina
rising late evening.
- **Apr-Jun:** Eta Carinae at its best, Crux and the Coalsack, Omega Centauri,
Centaurus A, NGC 4945, the Musca dark nebulae.
- **Jul-Sep (now):** the Scorpius tail and Ara at the zenith: Cat's Paw, War and
Peace, Prawn, NGC 6188, NGC 6231; NGC 6744; Corona Australis; 47 Tucanae and the
SMC in the second half of the night.
- **Oct-Dec:** Magellanic Cloud prime time, 47 Tucanae, Sculptor galaxies (NGC 253,
55, 300), Fornax cluster and NGC 1365, NGC 1566.
## A sensible first campaign (July-August)
1. **Free warm-up on T33** (30 min/day, Siding Spring): 47 Tucanae or NGC 6752 in
LRGB across a few nights. Costs nothing, learns the booking system.
2. **T71 narrowband run** (Chile, f/2.8): NGC 6188 or the Cat's Paw + War and Peace
region. Fast optics keep the bill down; use the standard 300 s calibrated subs.
3. **T73 galaxy shot**: NGC 6744, currently well placed, as an LRGB target.
4. **Book ahead for October-November:** T8 for the LMC (or SMC + 47 Tuc in one
frame): the single most "you cannot do this from the UK" image on the network.
## Budgeting a points balance
Published rate shape (from itelescope.net/standard-plans, 2026-07): affordable
scopes roughly $19-54 per imaging hour, premium scopes roughly $54-118 per hour,
where the range is the moon-phase discount (dark of moon at the top of the range,
bright moon at the bottom) and the plan discount (10% on Plan-40, 20% on Plan-90).
Exact per-scope, per-night rates are shown in the login portal's planner; treat the
numbers below as planning estimates, not quotes.
What a ~2,600 point balance buys, roughly:
- **A strong narrowband image on a fast scope (T71, T75):** 2-3 hours of exposure
is plenty at f/2.8-f/3.8; booked around gibbous moon the rate is at the low end,
so call it 150-350 points per finished target.
- **An LRGB galaxy on T73 or T17:** wants dark-of-moon time at premium-scope rates;
3-4 hours, roughly 300-500 points per target.
- **The T8 Magellanic Cloud shot:** 2-3 hours LRGB at a mid-range rate, roughly
200-350 points.
So ~2,600 points is comfortably 8-12 finished showpiece targets, or a full year of
the seasonal calendar above at one or two targets a month. Stretch it further with:
- **Full moon weeks are free** on the standard plans: use them for bright globulars
and clusters (47 Tuc, NGC 3532, IC 2602) where moonlight matters least, and keep
paid time for faint stuff.
- **The daily free 30 minutes** (T33 south, T68 north) for framing tests and short
targets, never spend points discovering a framing mistake.
- **Moon-phase arbitrage:** book narrowband (Carina, Ara, Cat's Paw) at bright moon
when rates bottom out; the 3 nm filters do not care about moonlight.
## Cost-shape notes
- Fast scopes (T71 f/2.8, T75 f/3.8, T70 f/3.5) reach depth in the least imaging
time, which is what you pay for: prefer them for nebulae.
- The two free scopes cover both hemispheres of this list poorly (T68 is northern)
but T33 covers southern globulars and compact targets well.
- Moonlight: narrowband targets (Carina, Ara, Scorpius nebulae) tolerate moon;
save galaxy and globular time (T73, T17, T8 LRGB) for dark-of-moon bookings.

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# Observing plans and the T33 session runbook
ACP observing plans for iTelescope scopes, plus the procedure to run one on T33
(the free Siding Spring scope). Credentials are NOT in this repo: they live in
the local claudetemp itelescope folder (creds.txt, `username=`/`password=` lines).
## Plan format (ACP)
See [ngc104-test.txt](ngc104-test.txt). Directives, then a target line:
`Name<TAB>RA_decimal_hours<TAB>Dec_decimal_degrees`. Counts, intervals, binning
and filters are parallel comma-separated lists. `#shutdown` parks safely at the
end (iTelescope's own one-click plans do the same).
## T33 endpoints (base http://t33.itelescope.net:8033, HTTP auth = iTelescope creds)
| Purpose | Path |
|---|---|
| Status JSON (times, obsStat, obsOwner) | /ac/SystemStatus/asystemstatus.asp |
| Console text | /ac/SystemStatus/aconsread.asp |
| Scope connect control | /ac/SystemStatus/ascopeconn.asp |
| Shutter/roof status | /ac/SystemStatus/ashutterctl.asp |
| My plan folder (list/upload/delete) | /plans/qisback/aindex.asp, aupload.asp, adelfile.asp |
| Run a plan ("Acquire Images") | POST /ac/Plans/plan.asp |
| My logs | /logs/qisback/aindex.asp |
| Finished data | data.itelescope.net |
Upload: multipart POST to `/plans/qisback/aupload.asp`, fields `File1` (the file)
and `DestPath=/plans/qisback`. Verified working 2026-07-18; content round-trips
exactly.
Run: the web UI posts the plan select to `/ac/Plans/plan.asp`; the select's value
is the WINDOWS path `C:\ProgramData\ACP\ACP Web Data\Doc Root\plans\qisback\<file>`.
Field names seen: `plan`, optional `VPhot`, `AutoLogoff`. NOT yet exercised live
(observatory was closed, daytime); the first live session must confirm whether a
scope-connect POST (ascopeconn.asp) is required first, and capture the exact
response shape.
## The 47 Tuc free-session test (ngc104-test.txt)
- Target: NGC 104 / 47 Tucanae, RA 0.4015 h, Dec -72.0814 deg (circumpolar at SSO).
- L 4x120 s, RGB 2x90 s each, Bin2: about 17 min exposure, about 24 min with
overhead, inside the daily free 30 minutes.
- Uploaded to /plans/qisback/ on 2026-07-18 and verified.
### When to run
47 Tuc clears T33's 20 degree minimum elevation in the second half of the SSO
night. SSO local = UTC+10; the good window is roughly 14:00-19:30 UTC (UK
afternoon/evening). Sunrise at SSO was 06:14 local (20:14 UTC) at recon time;
stop well before dawn.
### Procedure
1. GET asystemstatus.asp: confirm observatory open (obsStat) and no other user
(obsOwner n/a). If someone is on, wait and retry; T33 is first-come.
2. Confirm the plan file is still in /plans/qisback/ (aindex.asp).
3. POST plan.asp with the plan's Windows path to start acquisition.
4. Poll aconsread.asp (console) every minute or two: slew, centering, filter
changes, exposures. The run self-terminates via #shutdown.
5. Images land in /images/qisback/ on the scope server and then on
data.itelescope.net; logs in /logs/qisback/.
6. Record the session outcome in state/NOTES.md.
Abort path if something looks wrong: the web UI exposes an abort on the console
page; locate it live before starting exposures (not yet mapped).
## Reservations (verified working 2026-07-18)
Reservations live at http://reservations.itelescope.net ("Reservations Pilot"),
reached from each scope's /ac/MenuItems/reservation-edit.asp iframe as
`?t=<scope-id>&u=<username>` (scope ids look like GRAS059 for T59, GRAS033 for
T33; full list in the resources JSON on go.itelescope.net/Reservation/Overview.aspx,
whose embedded DayPilot events also show everyone's bookings, roof/sun times, and
the moon discount per night). No separate login: it trusts the u= parameter once a
session cookie exists.
Creating one is a three-step WebForms dance against
`New.aspx?start=<ISO local>&end=<ISO local>&r=<scope-id>` (times are OBSERVATORY
LOCAL): (1) GET the form, (2) POST tokens + DropDownStartTime/DropDownEndTime
(e.g. "12:05 AM"/"3:45 AM") + PlanToRunListBox=<plan file> + RescheduleCheckbox
+ ButtonRefreshPlans=Refresh Plans, which re-renders with Confirm enabled,
(3) re-POST the fresh tokens with the same fields + ReservationOKButton=Confirm
Reservation. Success = response script `ModalStatic.result("OK")` AND the booking
appearing in the grid: the modal also says "OK" on silent failure, so ALWAYS
re-fetch the grid and look for the reservation id + username.
Availability probing (2026-07-21): a plain GET of
`New.aspx?start=...&end=...&r=...` is a cheap, side-effect-free conflict check.
The form comes back with the two time dropdowns populated for +/-60 min around
the requested times, and if the slot collides with someone else's booking it
also renders "Conflicting reservation. Start time must be later than H:MM AM".
No message plus a full pair of dropdowns means the window is clear. This beats
reading the DayPilot grid, whose event divs do not survive a plain
Invoke-WebRequest fetch (they are rendered client-side).
Rules learned: maximum reservation length 4:00; recommended duration 1.5x total
imaging time; the attached plan is auto-started by iTelescope at reservation
start (no walk-in POST needed); RescheduleCheckbox auto-rebooks the identical
timeslot on the first available night of the next 30 if the run does not happen.
Delete/edit via Edit.aspx?id=<reservation id> from the grid.

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;
; Cat Paw NGC 6334 in Ha on T8 - phase 2 narrowband
; Ha 9x600s Bin1. 90 min imaging. Bright moon OK.
;
#largepreviews
#tiff
#count 9
#interval 600
#binning 1
#filter Ha
NGC6334 17.340000 -36.116667
#shutdown

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;
; Centaurus A (NGC 5128) on T32 for qisback - drain campaign phase 1
; L 12x300s, RGB 4x300s each. 120 min imaging.
;
#largepreviews
#tiff
#count 12,4,4,4
#interval 300,300,300,300
#binning 2,2,2,2
#filter Luminance,Red,Green,Blue
NGC5128 13.424333 -43.019139
#shutdown

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;
; Corona Australis dust complex on T8 for qisback - drain campaign phase 1
; L 8x300s Bin1, RGB 5x300s each Bin2. 115 min imaging.
;
#largepreviews
#tiff
#count 8,5,5,5
#interval 300,300,300,300
#binning 1,2,2,2
#filter Luminance,Red,Green,Blue
CrA-complex 19.030000 -36.955000
#shutdown

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;
; Centaurus A (NGC 5128) HDR core set on T32 for qisback - drain campaign
; Companion to cena-t32.txt (2026-07-21, 24x300s LRGB BIN2), whose nucleus is
; saturated: the core reaches 65313 ADU in a single 300s luminance sub.
; This is the short-exposure ladder to blend under that core.
; L 8x60s, 8x15s, 8x5s spans a 60x range below 300s; RGB 5x30s gives the
; nucleus colour. BIN2 throughout so the frames register to the deep stack
; without rescaling. 18.2 min imaging total.
;
#largepreviews
#tiff
#count 8,8,8,5,5,5
#interval 60,15,5,30,30,30
#binning 2,2,2,2,2,2
#filter Luminance,Luminance,Luminance,Red,Green,Blue
NGC5128 13.424333 -43.019139
#shutdown

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;
; 47 Tucanae (NGC 104) free-session test plan for qisback
; L 4x120s, RGB 2x90s each, Bin2. ~17 min exposure, ~24 min with overhead.
;
#largepreviews
#tiff
#count 4,2,2,2
#interval 120,90,90,90
#binning 2,2,2,2
#filter Luminance,Red,Green,Blue
NGC104 0.401500 -72.081389
#shutdown

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;
; NGC 6188 Fighting Dragons on T59, session A: Ha + OIII - phase 2 narrowband
; Ha 6x600s, OIII 6x600s. 120 min imaging. Bright moon OK.
;
#largepreviews
#tiff
#count 6,6
#interval 600,600
#binning 1,1
#filter Ha,OIII
NGC6188 16.669167 -48.796667
#shutdown

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;
; NGC 6188 on T59, session B: SII + extra Ha - phase 2 narrowband
; SII 6x600s, Ha 3x600s. 90 min imaging. Bright moon OK.
;
#largepreviews
#tiff
#count 6,3
#interval 600,600
#binning 1,1
#filter SII,Ha
NGC6188 16.669167 -48.796667
#shutdown

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;
; NGC 6744 paid session on T59 for qisback
; L 15x300s Bin1, RGB 7x300s each Bin2.
; 180 min imaging = ~240 pts at Plan-40 rate 80/hr before moon discount.
;
#largepreviews
#tiff
#count 15,7,7,7
#interval 300,300,300,300
#binning 1,2,2,2
#filter Luminance,Red,Green,Blue
NGC6744 19.162833 -63.857500
#shutdown

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;
; NGC 6752 (Pavo globular) free-session plan for qisback
; L 4x120s, RGB 2x90s each, Bin2. ~17 min exposure, ~24 min with overhead.
;
#largepreviews
#tiff
#count 4,2,2,2
#interval 120,90,90,90
#binning 2,2,2,2
#filter Luminance,Red,Green,Blue
NGC6752 19.181111 -59.984444
#shutdown

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;
; Scorpius tail super-wide (Prawn/Cat Paw region) on T70 for qisback - phase 1
; L 10x300s, RGB 4x300s each. 110 min imaging.
;
#largepreviews
#tiff
#count 10,4,4,4
#interval 300,300,300,300
#binning 1,1,1,1
#filter Luminance,Red,Green,Blue
Scorpius-tail 16.916667 -40.000000
#shutdown

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;
; SMC + 47 Tucanae in one T8 frame - phase 3 signature shot
; L 8x300s Bin1, RGB 6x300s each Bin2. 130 min imaging. Dark of moon.
;
#largepreviews
#tiff
#count 8,6,6,6
#interval 300,300,300,300
#binning 1,2,2,2
#filter Luminance,Red,Green,Blue
SMC-47Tuc 0.650000 -72.500000
#shutdown

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;
; Tarantula Nebula NGC 2070 on T32 - phase 3
; L 10x300s, RGB 5x300s each. 125 min imaging. Pre-dawn rising target.
;
#largepreviews
#tiff
#count 10,5,5,5
#interval 300,300,300,300
#binning 2,2,2,2
#filter Luminance,Red,Green,Blue
NGC2070 5.643333 -69.100000
#shutdown

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- Sensors are 16-bit ADC unless noted (T20's ASI2400C is 14-bit).
- Free scopes (30 min/day): T68 (Utah), T33 (Siding Spring).
- Minimum elevation limits come from the support article, not the sheet.
## Automation recon (2026-07-18, all verified live)
Credentials live OUTSIDE this repo (local claudetemp, never commit them).
- go.itelescope.net is ASP.NET WebForms. Login: GET /login.aspx, POST
UsernameTextBox/PasswordTextBox plus __VIEWSTATE, __VIEWSTATEGENERATOR,
__EVENTVALIDATION, LoginButton=Login; session cookie then works everywhere.
- JSON service at /DataService.svc (session-cookie auth): GetAccountStatus
(balance, plan, renewal), GetMyAvailablePlans (per-plan, per-scope
AccessDiscount), ApplyPromoCode (POST). More methods likely; enumerate from
inline $.ajax calls on each page (Scripts/Common.js has none).
- Home page /default.aspx carries live network status text (per-scope
offline/online reasons) plus points balance: cheap to poll.
- Reservation/Overview.aspx links every telescope's own control server:
https://tNN.itelescope.online/ or http://tNN.itelescope.net:80NN/. These are
ACP web servers behind HTTP auth accepting the same iTelescope credentials
(verified read-only on T33: index.asp is a TiddlyWiki info page, min elevation
20 degrees, 900 s max exposure). Session control and plan submission happen
here; ACP endpoint mapping is the next step.
- Reservation/Planner.aspx now redirects to https://lookup.itelescope.online
(new planning tool, not yet explored).
- Weather per site: Weather/Weather.aspx?site=UDRO|SSO|DSC|SRO|AC|EYE.
- Account: Plan-40 (GBP 32.00 per 28 days), renewal 12 Aug 2026, subscribed
since Apr 2019, balance 2,638 points at recon time.
## Rate card (2026-07-18, points per imaging hour, billed per minute)
Extracted from MyAccount/UpdatePlan.aspx: each scope row carries
data-default-rate (dark-of-moon base); effective rate = base x (1 -
AccessDiscount from DataService GetMyAvailablePlans) x (1 - moon discount,
server-side table keyed on illumination, not extracted yet). Plan-40 discount
is 10% on most scopes, 20% on a few, 0% on the newest (T25, T26, T73, T74).
Plan-40 rates before moon discount: T2 50, T5 68, T8 130, T10 146, T11 161,
T14 97, T17 135, T18 81, T20 89, T21 76, T24 186, T25 322, T26 394, T30 161,
T32 146, T33 0 (free), T59 80, T68 0 (free), T70 119, T71 106, T72 202,
T73 224, T74 295, T75 202, T80 119.
Standouts: T59 at 80/hr is the value big scope (20" CDK, square 37 arcmin
field, 900 s subs); T5 at 68/hr the cheapest paid; T26 at 394/hr the dearest.
Billing is per minute of imaging (exposure) time, so overhead is not billed.
**RATE CORRECTION (2026-07-20, from the first real bill):** the paragraph above
underestimates. T59 session 851148: 180 min of exposure, wall clock 00:05:22 to
03:29:56 (3h24m34s), history "Time Used" 3h24m32s = WALL time, billed 381 points
at 0% moon discount. That is ~112 pts/hr of wall time or ~127 pts/hr of exposure
time, vs the 80/hr the card predicted. So either Time Used (wall clock) is what
gets billed, or the card's data-default-rate is stale. Consequence: estimate
sessions at rate x reserved-slot-length (slots run ~1.15-1.5x imaging time), i.e.
multiply old exposure-based estimates by ~1.6 until more bills confirm the model.
**RATE CORRECTION 2 (2026-07-21, second bill; SUPERSEDES the x1.6 rule above).**
T32 session 851344: 120 min of exposure, Time Used 2h25m55s, 25% moon discount,
billed 160. 160 = 2.00 h x 80 exactly, and the T59 bill is 381 = 3.00 h x 127
exactly. Both land on the plan's IMAGING minutes to the point, and neither lands
on wall time. So the wall-clock theory is dead and the original "billed per
minute of exposure" documentation was right; what is wrong is the card's
per-scope numbers. Observed effective rates: **T59 127/hr** (card said 80),
**T32 80/hr even after a 25% moon discount**, implying a base near 107/hr (card
said 146). The pair looks transposed, but two samples cannot prove it. Rules:
do NOT apply any blanket multiplier; derive each scope's rate from its first
real bill; until then treat a card rate as +/-60%; and compute estimates from
the plan's exposure total, never from the reserved slot length.
Paid imaging needs no reservation when a scope is idle: same walk-in ACP flow
as the free scopes, points just deduct. Reservations (to guarantee a slot) go
through lookup.itelescope.online, which is Cloudflare-protected: Playwright
needed.

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A reference and review of the iTelescope.net remote telescope network: what each
telescope is, what it is good at, and which one to book for a given kind of target.
Since 2026-07-18 the active objective is the drain campaign (CAMPAIGN.md): spend
the account's 2,638 points on southern-sky imaging by 10 Aug 2026, download all
data, then cancel the membership before the 12 Aug renewal. Cancellation needs
explicit user confirmation on the day.
## Scope
- In scope: reviews and spec tables for every telescope on the iTelescope network,

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- 2026-07-17: specs sheet snapshotted to data/itelescope-telescopes.csv (24 scopes).
- 2026-07-17: TELESCOPES.md written: per-scope reviews for all 23 active telescopes
plus a choosing guide (T74 noted as in commissioning, no specs published).
- 2026-07-18: TARGETS.md written: southern targets invisible from the UK (dec tiers
from lat 51.5°N), matched to Q62/X07 scopes, seasonal booking calendar, and a
July-August starter campaign (T33 free, T71 narrowband, T73 galaxy, T8 LMC later).
## Done (recent)
- 2026-07-20: NGC 6744 on T59 SUCCEEDED (reservation 749227, txn 851148): full
LRGB dataset on the scope server (L 15x300s BIN1, RGB 7x300s each BIN2),
previews verified clean. Billed 381 pts (est was ~240: see the rate
correction in NOTES.md). Balance now 2,257. Ledger updated in CAMPAIGN.md.
## Done (recent)
- 2026-07-21 ~08:55 UTC: free T33 47 Tuc retry booked as reservation 749314
(grid-verified), third attempt at the first-light test, runs 14:05-14:50 UTC
21 Jul, costs 0.
## Done (recent)
- 2026-07-21 11:40 UTC: Cen A on T32 verified COMPLETE (billed 160, NGC5128
images on the scope server), and queue #2 (Corona Australis on T8) booked for
the night of 22 Jul, 21:45-00:45 SSO local, which brackets the target's
culmination instead of chasing it down the western sky. Rate model rebuilt
from two actual bills. Details in the CAMPAIGN.md session note.
## In progress
- T33 first-light test on its THIRD booking (749314), which had NOT yet run as of
11:40 UTC 21 Jul: it starts 14:05 UTC. Verify after 14:50 UTC (images and logs
on t33.itelescope.net:8033 were still empty/stale at 11:40, as expected). The
two prior free reservations (749228, 749229) expired unused with reschedule=No;
if 749314 also fails to run, stop rebooking and either walk it in (POST
plan.asp per plans/README.md) or drop the free objective.
- The T32 HDR core set (plans/hdrcore-t32.txt) was booked and then CANCELLED on
2026-07-21 without running: the Cen A nucleus is not saturated, the earlier
claim having measured a foreground star. See the correction in CAMPAIGN.md.
Zero points spent. The plan file remains available on T32 if a genuinely
saturated target turns up.
- The 21 Jul Cen A data has been fully processed off-repo, in the user's
Downloads\NGC5128\20260721\stacked folder: masters, plate solution (0.27
arcsec on 237 stars), an LRGB composite, a globular cluster survey (289
candidates, 62% catalogue-confirmed, density falling 10.5x outward), surface
photometry (Sersic n = 4.27, Re = 400 arcsec, total G = 6.56, which matches
the catalogued brightness and so validates the photometric chain), and a
transient/moving-object search (both null, with measured limits). METHODS.md
there documents the lot. Nothing from that analysis needs to come back into
this repo, but two results affect FUTURE sessions and are recorded here:
**(a)** measure saturation properly before buying short subs, and **(b)** the
faint outer halo in that stack is limited by the sky-plane subtraction
(-17.9 ADU/px of real halo light absorbed), not by exposure time, so more
integration alone would not have gone deeper.
- CrA on T8 runs 11:45-14:45 UTC 22 Jul. Verify after 14:45 UTC: images under
/images/qisback/T8/ on t8.itelescope.net:8008, then the actual bill from
account/history.aspx into the ledger. This is the first T8 bill, so it also
fixes T8's effective rate (card says 130/hr; trust nothing until observed).
- DRAIN CAMPAIGN ACTIVE (see CAMPAIGN.md): spend the full balance by 10 Aug,
then cancel before the 12 Aug renewal (user confirmation required for the
cancel itself). 541 of 2,638 spent; 2,097 remain. The x1.6 estimate multiplier
is WITHDRAWN: billing is on plan imaging minutes, and per-scope rates must come
from actual bills (T59 127/hr, T32 80/hr observed; the NOTES rate card is
unreliable). On current numbers the campaign UNDER-spends by ~800: plan extra
or longer runs, do not trim. Reschedule flag never sticks (grid always shows
No): treat every reservation as one-shot and verify the morning after.
Download the NGC 6744 and NGC 5128 data from data.itelescope.net before the
10 Aug cancellation sweep. Update the CAMPAIGN.md ledger after every session
from account/history.aspx.
- (nothing)
## Pending
- Automation: map the ACP web endpoints on a per-scope server (start with free
T33) for plan submission and status; explore lookup.itelescope.online (the new
planner); enumerate more /DataService.svc methods. Recon notes in NOTES.md.
- Campaign impact (status seen 2026-07-18): T71 and T73 are offline
(development/mount testing), as are T2, T17, T18, T20, T25, T30, T72, T74,
T75, T80. T8, T33, T32, T59 at Siding Spring are operational. Re-plan the
July-August campaign around T33 free time and Siding Spring scopes until the
Chile rebuild finishes; re-check status before any booking.
- Fill in T74 when iTelescope publishes its specs.
- Reconcile the retired scopes (T9, T19, T31, T69): the support article still lists
them but the maintained sheet does not; confirm status and note it.