68-302 Determining the origin of the elusive Fast X-ray Transients

PI: Peter Jonker

Observing instructions:

execute the requested scripts.

Program Tracking
Proposal	68-302
Semester	P69: 20240401 - 20241001
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
Notes	Override, but should aim for (soft) triggers during Nordic service or Technical nights
Total Time Spent	04:51 (hh:mm)   Hard ToO:04:51   Soft ToO:

Proposal	Date	Time	Type	Targets	Files	Comments	Status
68-302	2024-04-14	00:15	ToO	EP240414a	ALHd140039 - ALHd140043	The data was shared with program 69-811. The data consists of 5 frames with r' filter that was in an OB of program 69-811.	Observed
68-302	2024-04-15	00:37	ToO	EP240414a	ALHd150066 - ALHd150078	During the observations, seeing started at 1.9'' and improved to 1.5''. The r' band observations showed some visual signal near the two stars of the source, but yesterday it was stronger. In summary, observed filling the requirements. The data was shared with program 69-811, so the marked time spent is only half the observation's duration.	Observed
68-302	2024-04-18	00:22	ToO	EP240414a	ALHd180212-ALHd180215 ; ALHd180228 - ALHd180232	Observed through thin clouds and seeing of around 1 arcsec. On the first attempt at 01:01 UT, we only took the first two filters because the clouds became very thick afterwards. We observed files ALHd180212-ALHd180215, from 01:01 to 01:19. On the second attempt at 2:18 U.T. when clouds were finally looking thinner, we tried again, and observed only the i-band and z-band. This produced files ALHd180228 - ALHd180232. The g-band was observed correctly on the first attempt on files ALHd180212-ALHd180213.	Observed
68-302	2024-04-19	00:13	ToO	EP240414a	ALHd190189 - ALHd190198	Observed with thin clouds and variable seeing.	Observed
68-302	2024-04-20	00:24	ToO	EP240414a, EP240420a	ALHd200058 - ALHd200066, ALHd200104 - ALHd200108	EP240414a: Observed with clear skies and 1.3-1.6'' seeing. Although observations were attempted at the maximum distance possible from the moon, several of the exposures seem to be near the limit of sky-level saturation. Data shared with program 69-811 EP240420a: Data shared by program 69-811. Observed with clear skies and subarc seeing. Target had to be observed close to the moon, but on first glance, the sky didn't seem to saturate.	Observed
68-302	2024-04-23	01:12	ToO	EP240414a	NCHd230204 - NCHd230275	Observed with thin clouds and seeing around 1 arcsec. Some data affected by passing clouds.	Observed
68-302	2024-04-25	00:48	ToO	EP240414a	NCHd250306 - NCHd250341	Thin clouds and a seeing of between 0.7 and 0.9 arcsec.	Observed
68-302	2024-04-29	01:00	ToO	EP240414a	ALHd290182 - ALHd290193		Observed

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