P69-023: Chasing the most exotic gamma-ray bursts

PI: Daniele B. Malesani

ALFOSC/StanCam+NOTCam ToO + SoftToO

ToO triggers have override status, SoftToOs can trigger in Nordic Service a nd Technical nights.

The OB generator will be used to request all observations.
The OBs will automatically appear in the OB queue and OB generated scripts will be automatically placed in the directory ~/scripts/69-023/.

For the observer:

Go to the directory
cd ~/scripts/69-023
List the available scripts
ls -lrt
and execute the OB generated scripts requested.

Make sure that differential skyflats are obtained for the camera and filter setup that is requested.

Remember to fill the ToO tracking log of this program.

Program Tracking
Proposal	69-023
Semester	P69: 20240401 - 20241001
Principal Investigator	Daniele Bjorn Malesani
Programme	Chasing the most exotic gamma-ray bursts
Instrument	ALFOSC/StanCam+NOTCam
Time Allocation	12 triggers, follow-up 4x5 epochs up to 3h. NOTCam 3h obs
Total Nights	24h+3h
Type	ToO+SoftToO
Notes	Override. Follow-up soft triggers during Nordic service or Technical nights
Total Time Spent	22:34 (hh:mm)

Proposal	Date	Time	Type	Targets	Files	Comments	Status
69-023	2024-04-11	00:38	ToO	grb240411b	ALHd110178 - ALHd110185	The photometry block was observed with cloudy skies and seeing no lower than 3 arcsec. Image showed no sign of the target so we did not attempt spectroscopic follow up, but this would not have been permitted with the 1.3 arcsecond seeing requirement on these blocks anyway.	Observed
69-023	2024-04-14	00:25	ToO	GRB240414A	ALHd140044 - ALHd140048	The target was observed during a clear sky. Based on the raw frames, the target more visible in the r' filter frames.	Observed
69-023	2024-04-15	00:49	ToO	GRB240415A, GRB240414A	ALHd150060 - ALHd150065, ALHd150079 - ALHd150080	GRB240415A was observed twice because the seeing turned really bad really fast the duration of the observation. There was time to try again during decent seeing, and the GRB was visual in the second attempt. GRB240414A was observed with stable seeing at 1.8'' but there was no visual signal in the raw frames in the r' frame as yesterday.	Observed
69-023	2024-04-17	01:15	ToO	EP240408a	ALHd170113 - ALHd170144	Observed through clouds, thicker in the beginning of the OB, so no guiding was possible, but because the exposures are short and the stars were still visible in the images we still took the data. The r'-band images are much worse quality, and in a lot of them the stars aren't really visible through the clouds. The clouds cleared up in the z'-band and we could start guiding again (especially starting in the the third exposure) so we're setting the OB to completed because this was the priority band. Very variable seeing around 1.5-2 arcsec.	Observed
69-023	2024-04-18	01:13	ToO	EP240408a, GRB240418A	ALHd180141 - ALHd180148 ; ALHd180163 - ALHd180170	In regards to EP240408a, we managed to acquire 8/16 exposures of the target before it hid behind thick clouds. Observed with seeing below 1.1 arcsec through very thin clouds, so the 8 exposures acquired should have been observed according to the requirements. In regards to GRB240418A, we also observed it through thin clouds, with sub-arcsec seeing. We lost guiding briefly in file ALHd180169, due to clouds getting thicker, but regained it after a few seconds.	Observed
69-023	2024-04-19	00:37	ToO	GRB240419B	ALHd190276 - ALHd190283	Observed with some thin clouds and seeing 1.5-2.0 arcsec	Observed
69-023	2024-04-20	00:00	ToO			Observation failed as the sky and seeing requirements could not be met.	Failed
69-023	2024-05-01	00:00	ToO			Too cloudy	Failed
69-023	2024-05-02	01:33	ToO	EP240408a, GRB240402B	ALHe020136 - ALHe020151, ALHe020244 - ALHe020252	Both targets observed in clear skies with seeing at or below 1.0" Caught satellite trails during both observations, but these did not go over the target location itself	Observed
69-023	2024-05-11	00:38	ToO	GRB 240511A	ALHe110145 - ALHe110152	observed with clear skies (I think) and seeing 1.45" for r' and 1.1" for z'	Observed
69-023	2024-05-12	00:54	ToO	GRB240511A	ALHe120317 - ALHe120321	observed, clear skies, starting at airmass 1.91, seeing started at 1.4" but was later 1.5"-1.6"	Observed
69-023	2024-05-28	00:16	ToO	grb240528a	ALHe280306 - ALHe280311	Observed in clear skies with seeing around 1.0"	Observed
69-023	2024-06-19	00:38	ToO	GRB240615A	ALHf190173 - ALHf190180	Clear skies and sub-arcsec seeing	Observed
69-023	2024-06-20	00:40	ToO	GRB240615A	ALHf200344 - ALHf200358	Clear skies and 1'' seeing.	Observed
69-023	2024-06-21	01:03	ToO	GRB240619A	ALHf210061 - ALHf210074	The GRB was visible in the raw frames.	Observed
69-023	2024-06-23	00:29	ToO	GRB240619A	ALHf230161 - ALHf230165	The target appears to be more easily visible in the frames than two nights ago, although the seeing was worse now (~1.5'').	Observed
69-023	2024-06-25	00:32	ToO	GRB240619A	ALHf250081 - ALHf250085	Observed with clear sky and seeing better than 1 arcsec.	Observed
69-023	2024-07-13	00:55	SoftToO	GRB220706A	ALHg130127 - ALHg130131	Observed with clear sky. Seeing was better than 1 arcsec.	Observed
69-023	2024-07-27	00:36	ToO	GRB240727A	ALHg270054 - ALHg270059	Observations OK, OB status is CTRLC because of an error at the end of the script. Should have no influence on the data!	Observed
69-023	2024-08-05	00:18	ToO	EP240804a	ALHh050189 - ALHh050191	The target was observed with clear skies, but with dusty conditions. When observing the target the airmass was 2.8, and the seeing was 0.5 arcsec. The other ToO was not observed due to it being canceled doing the afternoon.	Observed
69-023	2024-08-09	01:35	ToO	Wolf1346, GRB240809A	ALHh090133 - ALHh090136,ALHh090146 - ALHh090156	We observed another standard star as well that you might be interested in.	Observed
69-023	2024-08-11	01:27	ToO	GRB240809A, GRB240811A	ALHh110143 - ALHh110159	Observed in clear skies with seeing around 0.6"	Observed
69-023	2024-08-14	00:55	ToO	GRB240809A	ALHh140181 - ALHh140185	Observed with clear skies, 1.5" seeing.	Observed
69-023	2024-08-24	00:18	ToO	GRB240824B	ALHh240232 - ALHh240234	Target observed in clear skies with seeing around 1.9"	Observed
69-023	2024-08-25	00:27	ToO	GRB240825A	ALHh250148 - ALHh250157	Observed with clear skies, sub-arcsec seeing. Target could be clearly identified in all frames.	Observed
69-023	2024-08-26	00:26	ToO	GRB240825A	ALHh260093 - ALHh260102	Seeing was around 1.0''. Last two exposures were repeated because clouds appeared. Thus, use ALHh260100-01 instead of ALHh260096-97.	Observed
69-023	2024-08-27	00:37	ToO	GRB240825A	ALHh270055 - ALHh270063	Dusty but clear skies. Seeing around 1.2''	Observed
69-023	2024-08-31	00:57	ToO	GRB240825A	ALHh310229 - ALHh310244	Great seeing (0.65''-0.85''). It is plausible that the GRB is clearly visible in the stacked frames.	Observed
69-023	2024-09-05	01:07	ToO	GRB240905E	ALHi050106 - ALHi050113, ALHi050120 - ALHi050124	Target observed according to requirements. Clear skies and sub arcsec seeing.	Observed
69-023	2024-09-11	00:29	SoftToO	GRB240905E	ALHi110101 - ALHi110103, ALHi110118 - ALHi110122	Observed with clear sky and seeing around 1-1.5 arcsec.	Observed
69-023	2024-09-11	00:29	ToO	GRB240910A, SP0644+375, GRB240912A	ALHi110070 - ALHi110072, ALHi110104 - ALHi110117	GRB240910A and SP0644+375 observed with clear sky and seeing around 1-1.5 arcsec. From GRB240912A observed only two short exposures before had to readout due to high wind.	Observed
69-023	2024-09-17	00:18	ToO	GRB240916A	ALHi170147 - ALHi170149	GRB visible in images	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: March 14 2024