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Laurence cd3de71361 Verify Cen A, book CrA on T8 for 22 Jul evening, rebuild the rate model 
Cen A (reservation 749302, T32) completed at 11:16 UTC, 34 minutes early
because the plan finished, not because of a fault: NGC5128 images are on
t32.itelescope.net:8032 and transaction 851344 billed 160 points. Balance
is now 2,097 of the original 2,638.

That second bill settles the billing question the 20 Jul note left open.
T32 billed 160 for a 120 min plan (2.00 h x 80) and T59 billed 381 for a
180 min plan (3.00 h x 127); both land exactly on the plan's exposure
total and neither lands on wall-clock time. So billing is per imaging
minute as originally documented, and the x1.6 wall-clock multiplier is
withdrawn from CAMPAIGN.md, TODO.md and NOTES.md. What is actually wrong
is the rate card's per-scope numbers, so each scope's rate now has to be
derived from its first real bill. The practical consequence is the
opposite of the old warning: the campaign is now heading to UNDER-spend
by roughly 800 points, so later planning sessions should add or lengthen
runs rather than trim them.

Queue #2 (Corona Australis on T8) is booked at last. The original
01:35-04:35 slot was confirmed dead by probing New.aspx, which answered
"Conflicting reservation. Start time must be later than 2:25 AM" (user
hajo's reservation 749207, exactly as the previous session predicted).
Rather than take the leftover 02:30-05:30, where the target sits 3.5 to
6.5 hours past the meridian, the run moved to the next night's evening,
2026-07-22 21:45 to 2026-07-23 00:45 SSO local, which brackets the ~22:30
culmination so all 115 minutes of imaging happen near the zenith. This is
the geometry of the previously rejected option (c) on the night of option
(b): (c) was only rejected because Cen A held the reservation quota, and
that expired when Cen A completed. Verified via Reservation/MySummary.aspx;
quota now 6:50 of 8:00.

The New.aspx probe is documented in plans/README.md as the way to test a
slot for conflicts, since the DayPilot grid renders client-side and shows
nothing to a plain HTTP fetch.
2026-07-21 12:43:11 +01:00

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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 |
| 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 |
### 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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