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72-302 The origins of the Fast X-ray Transients

PI: Peter Jonker

Observing instructions:

Go to the directory
  cd ~/scripts/72-302

execute the requested scripts.


Program Tracking
Proposal 72-302
Semester P72: 20251001 - 20260401
Principal Investigator Peter Jonker
Programme The origins of the Fast X-ray Transients
Instrument ALFOSC
Time Allocation 22 hours ToO ITP time
Total Nights 22h
Type ToO+SoftToO
Notes Override
Total Time Spent 14:20 (hh:mm)
Proposal Date Time Type Targets Files Comments Status
72-302 2025-10-26 00:19 ToO EP251027a ALIj260124 - ALIj260131 Observed under thin clouds and seeing 1"-1.5". Data and time is shared between this proposal and 72-811. Observed
72-302 2025-11-18 00:31 ToO EP251118a, SP1045+378 ALIk180143 - ALIk180155 Observed under clear sky and good seeing. Data shared between this program and 72-811. Observed
72-302 2025-11-19 00:00 ToO Missed due to high humidity. Failed
72-302 2025-11-24 00:37 ToO EP250827b, EP251124a ALIk240061 - ALIk240072, ALIk240096 - ALIk240103 Thin clouds, and the seeing was around 1.1". Conditions deteriorated significantly during the exposure ONLY for target EP251124a, with heavy cloud cover midway through the observation. I’m not sure how useful the data will be. Observed
72-302 2025-11-25 01:48 ToO EP251124b, EP251020a, SP0946+139 ALIk250074-94, 166-169 good sky Observed
72-302 2025-11-28 01:31 SoftToO EP250827b NCIk280584 - NCIk280664 Observed with clear sky and fluctuating seeing between 1'' and 2'' Observed
72-302 2025-12-01 00:30 ToO EP251130a ALIl010618 - ALIl010625, ALIl010707 - ALIl010709 Observed with clear skies, first point with seeing around 2.5" and second point around 1.3". Shared with 72-811. Observed
72-302 2025-12-02 00:40 ToO ep251130a STIl020019 - STIl020021 Observed at 2 arcsec dimm seeing. Observed
72-302 2025-12-17 02:28 SoftToO EP250827b ALIl170192 - ALIl170212, ALIl170214 - ALIl170223 Observed during high clouds and seeing <1.3". Due to malfunctioning of the rain detectors, the mirror covers auto-closed in the middle of exposure (i-filter). Had to open again and start from where the closing happened. Observed
72-302 2025-12-21 00:22 ToO EP251220a, EP251221a ALIl210078 - ALIl210081 , ALIl210218 - ALIl210222 Removing CTRL+C'd files from total time. Observed
72-302 2025-12-23 00:41 ToO EP251222a STIl230019 - STIl230032 Observed with clear skies and seeing between 1''-1.5''. Data shared with proposal 72-811. Observed
72-302 2025-12-26 01:21 ToO EP251222a, EP251212a ALIl260200 - ALIl260208, ALIl260437 - ALIl260441 Clear skies, and the seeing was oscillating between 0.9" and 1.3". Observed
72-302 2025-12-27 02:40 ToO EP250827b, EP251222a ALIl270099 - ALIl270113, ALIl270114 - ALIl270128 Clear skies, and the seeing was around 1.1". Observed
72-302 2025-12-29 00:20 ToO EP251229a ALIl290138 - ALIl290147 Shared data. Great seeing before humidity spike. Observed
72-302 2025-12-30 00:32 ToO EP251222a ALIl300088 - ALIl300097 Observed through thin clouds with approx. half arsec. seeing. Observed

 

The above information is collected from the ToO/Mon reports that have been created by the observer.

Should any of the observations have been carried out using the OB system, you will find additional information HERE

Back to top Last modified: September 12 2025