70-301 Determining the origin of the elusive Fast X-ray Transients

PI: Peter Jonker

Observing instructions:

Go to the directory
cd ~/scripts/70-301

execute the requested scripts.

P70 tracking

Program Tracking

Proposal 70-301

Semester P71: 20250401 - 20251001

Principal Investigator Peter Jonker

Programme Determining the origin of the elusive Fast X-ray Transients

Instrument ALFOSC

Time Allocation

Total Nights 1.6

Type RRM+ToO+SoftToO

Notes

Total Time Spent 15:01 (hh:mm)

Proposal Date Time Type Targets Files Comments Status

70-301 2025-04-04 00:57 ToO EP250227a ALId040092 - ALId040101 Clear skies and subarcsec seeing Observed

70-301 2025-04-21 00:19 ToO EP250421a ALId210095 - ALId210102 Shared with 71-812. Observed

70-301 2025-04-22 00:17 ToO EP250421a ALId220072 - ALId220074 Clear skies and seeing between 1.2''-1.5''. The data was shared with proposal 71-812, with the time being also split. Observed

70-301 2025-05-12 00:00 ToO EP250511a ALIe120031 - ALIe120036 Clear skies, and the seeing was between 1.0" and 1.5". But the humidity increased to 100%. So, aborted the OB. Failed

70-301 2025-05-14 00:42 ToO EP250511a ALIe140066 - ALIe140074 completed Observed

70-301 2025-08-03 00:21 ToO EP250802c ALIh030053 - ALIh030057 Observed

70-301 2025-08-12 00:30 ToO EP250812a ALIh120082 - ALIh120096 Observations were started at 5.30 and continued to twilight due to other time critical observations. Please let us know if the data is usable Failed

70-301 2025-08-22 01:04 ToO EP250821a ALIh220085 - ALIh220098 Target observed in clear, slightly dusty skies with sub-arcsec seeing. Observed

70-301 2025-08-23 00:00 ToO None None Target missed because it was unable to be scheduled. Failed

70-301 2025-08-24 01:03 ToO EP250821a ALIh240094 - ALIh240107 Target observed in clear skies with seeing around 0.6". Object was visible in the images. Observed

70-301 2025-08-27 00:46 ToO EP250821a ALIh270065 - ALIh270069 Target observed in clear skies with seeing around 0.6". Target was visible in the images. Observed

70-301 2025-08-28 01:19 ToO EP250821a, EP250828a ALIh280080 - ALIh280088,ALIh280099 - ALIh280103 Targets observed in clear skies with seeing around 0.6". Low target I think was visible in some exposures, but very faint. Observed

70-301 2025-08-29 00:39 ToO EP250829a ALIh290112 - ALIh290114, ALIh290120 - ALIh290124 Both ToOs observed with clear skies and sub arcsec seeing. Observed

70-301 2025-08-31 00:35 ToO EP250831a ALIh310148 - ALIh310162 Observed in reasonably good conditions with 1-1.5" seeing (dimm). Observed

70-301 2025-09-01 00:45 ToO EP250831a ALIi010137 - ALIi010144 Observed under seeing that varied between 0.9 and 1.4" according to DIMM. Conditions improved towards the end, To be shared with 71-812. Observed

70-301 2025-09-02 01:30 ToO EP250827b ALIi020168 - ALIi020185 Obtained in good conditions in about 1" Seeing. The last gr4 exposure was taken partially in twilight and the standards fully in astronomical twilight. Observed

70-301 2025-09-03 00:26 ToO A_F24, EP250827b ALIi030149-157 Observed

70-301 2025-09-04 01:16 ToO EP250827b, SP0305+261 ALIi040132 - ALIi040147 All OBs observed with seeing around 1.5'' Observed

70-301 2025-09-05 02:32 ToO EP250905a, EP250827b NCIi050352 - NCIi050402 , NCIi050613 - NCIi050702 Observed without issues, and seeing around 0.7" 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

Last modified: April 05 2025