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T59 window fix: reservation collision and moon discount #8

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laurence merged 1 commit from t59-window-fix into main 2026-07-18 22:56:37 +01:00
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laurence commented 2026-07-18 22:56:37 +01:00
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Feature

Ledger/plan correction: astrosharp reservation on T59 (17:50-19:40 UTC 19 Jul) forces an earlier start; 25% moon discount confirmed from the booking grid lowers the cost estimate to ~185 pts.

Tools used

Parsed the DayPilot event JSON embedded in Reservation/Overview.aspx.

What was achieved

Collision avoided before it happened; cron rescheduled from 16:33 to 15:14 UK with a trim-or-skip fallback.

## Feature Ledger/plan correction: astrosharp reservation on T59 (17:50-19:40 UTC 19 Jul) forces an earlier start; 25% moon discount confirmed from the booking grid lowers the cost estimate to ~185 pts. ## Tools used Parsed the DayPilot event JSON embedded in Reservation/Overview.aspx. ## What was achieved Collision avoided before it happened; cron rescheduled from 16:33 to 15:14 UK with a trim-or-skip fallback.
laurence added 1 commit 2026-07-18 22:56:37 +01:00 
The booking grid (Reservation/Overview.aspx embeds the DayPilot events)
shows astrosharp holding T59 from 03:50 to 04:40 SSO local on 20 Jul, i.e.
17:50-19:40 UTC on 19 Jul, which collided with the original 15:33 UTC
walk-in start. The run is rescheduled to start ~14:15 UTC (parallel with
the free T33 test, different scope) so it completes by 17:45 UTC, with a
trim-or-skip rule if the start slips. The grid also confirms a 25% moon
discount in effect, so the cost estimate drops from ~240 to ~185 points;
ledger updated. Times in the embedded grid are per-observatory local time
(verified against Utah sunset and the first-quarter moon note).
laurence merged commit 1846125907 into main 2026-07-18 22:56:37 +01:00
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Reference: laurence/itelescope#8
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