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 |
06:30 (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 |
|
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
|
