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.

P68 tracking P69 tracking

Program Tracking

Proposal 70-301

Semester P70: 20241001 - 20250401

Principal Investigator Peter Jonker

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

Instrument ALFOSC

Time Allocation Follow-up on first 3 night of a trigger

Total Nights 1.6

Type ToO+SoftToO

Notes Override, but should aim for (soft) triggers during Nordic service or Technical nights

Total Time Spent 12:20 (hh:mm)

Proposal Date Time Type Targets Files Comments Status

70-301 2024-10-23 00:32 ToO EP241021a ALHj230148 - ALHj230152, ALHj230167 - ALHj230171 Observed with clear sky and seeing better than 1 arcsec. Shared with 70-301 by 70-811 Observed

70-301 2024-10-24 00:26 ToO EP241021a ALHj240145 - ALHj240153 Observed with clear sky and seeing around 0.5-0.7 arcsec. Observed

70-301 2024-10-26 00:00 ToO Target could not be observed due to bad weather Failed

70-301 2024-10-29 01:02 ToO EP241021a ALHj290065 - ALHj290075 Observed with clear skies and seeing between 1.1 and 1.4 arcsec. Observed

70-301 2024-10-30 00:44 ToO EP241026B ALHj300124 - ALHj300127 There appears to be a source in the indicated spot. Seeing was ~0.7'' during the observation. Observed

70-301 2024-10-31 01:09 ToO EP241021a, EP241026b ALHj310183 - ALHj310186, ALHj310225 - ALHj310228 Both sources were visible in the raw frames. There were some thin clouds in the sky, but seeing was sub-arcsecond. Observed

70-301 2024-11-01 01:08 ToO EP241021a, EP241026b ALHk010115 - ALHk010118, ALHk010119 - ALHk010122 Observed one after the other. Seeing around 0.6 arcseconds. Thin clouds at the start of the first object, which disappeared around halfway through the observations of the second object. Observed

70-301 2024-11-02 00:33 ToO EP241101A ALHk020122 - ALHk020124 Clear skies throughout, average seeing around 0.7. Observed

70-301 2024-11-04 00:34 ToO EP241101A ALHk040112 - ALHk040114 Observed with clear skies and subarcsecond seeing Observed

70-301 2024-11-05 00:24 ToO EP241021A ALHk050208 - ALHk050211 Observed during a clear sky. Seeing was ~0.65''. The source appears to still be in the indicated spot. Observed

70-301 2024-11-09 00:30 ToO EP241107a ALHk090130 - ALHk090134 Observed through thin clouds and seeing around 1.2 arcseconds. Observed

70-301 2024-11-10 00:33 ToO EP241107a ALHk100219 - ALHk100221 Observed with clear, dusty skies and seeing around 1 arcsec. Observed

70-301 2024-11-27 00:21 ToO EP241126a ALHk270156 - ALHk270164 Observed in clear skies with seeing around 2.5" Observed in a 3x3 grid with 240 s exposures Observed

70-301 2024-12-07 00:55 SoftToO EP241107a ALHl070272 - ALHl070276 Target observed with seeing around 0.5-0.6" with clear skies. Observed

70-301 2025-01-09 00:31 ToO EP250108a, EP250108A ALIa090079 - ALIa090086, ALIa090087 - ALIa090091 Clear night with excellent conditions and good seeing. r and z band data shared FROM 70-811 and g and i band data shared TO 70-811, per agreement. Observed

70-301 2025-01-10 00:20 ToO EP250108A ALIa100181 - ALIa100189 Target shared with proposal 70-811 so time is halved. Observed according to requirements. Observed

70-301 2025-01-11 00:52 ToO EP250108a ALIa110082 - ALIa110093 Seeing around 1 arcsec and clear skies. Observed right after nautical twilight Observed

70-301 2025-01-15 00:44 ToO EP250108a NCIa150325 - NCIa150378 Observed in clear sky and seeing from 0.7" to 0.9". Observed

70-301 2025-01-17 01:02 ToO EP250108a ALIa170165 - ALIa170178 Observed with clear skies and very variable seeing, which oscillated between 1.0 to 1.8''. Please let us know if the data is usable. 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: September 16 2024