P74-515:
The nature and origin of gamma-ray bursts in the SVOM and EP era
PI: Daniele Bjorn Malesani, Johan Peter Uldall Fynbo, Dong Xu
ALFOSC/StanCam + NOTCam ToO program with override status
ToO triggers have override status.
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/71-506/.
For the observer:
Go to the directory
cd ~/scripts/74-515
List the available scripts
ls -lrt
and execute the OB generated scripts requested.
If you cannot find the corresponding observing script, please (re-)compile it from the Queue interface.
In the case of NOTCam, make sure that differential skyflats are obtained
for the camera and filter setup that is requested.
Remember to fill the
ToO or
SoftToO
tracking logs of this program.
| Program Tracking |
| Proposal |
74-515 |
| Semester |
P74: 20261001 - 20270401 |
| Principal Investigator |
Daniele Bjorn Malesani, Johan Peter Uldall Fynbo, Dong Xu |
| Programme |
The nature and origin of gamma-ray bursts in the SVOM and EP era |
| Instrument |
ALFOSC+NOTCAM |
| Time Allocation |
40 hours ToO and 20 hours SoftToO; 5 hours RRM; 5 hours NOTCam ToO |
| Total Nights |
70h |
| Type |
RRM/ToO/SoftToO |
| Notes |
Override |
| Total Time Spent |
12:38 (hh:mm)
|
| Proposal |
Date |
Time |
Type |
Targets |
Files |
Comments |
Status |
|
| 74-515 |
2026-10-07 |
00:20 |
ToO |
GRB261007A |
ALJj070091 - ALJj070092; ALJj070097 - ALJj070099 |
First try: Observing under clear skies. Seeing started around 1.3" and ended around 3". The script was aborted because humidity rose past 90%.
Second try: Observing under clear skies. Seeing started around 2" and maintained.
Files from the first try might be useful.
Second target could not be observed due to weather conditions. |
Observed |
|
| 74-515 |
2026-10-10 |
00:53 |
ToO |
GRB261010A, GRB260924A |
ALJj100058 - ALJj100065, ALJj100246 - ALJj100251 |
The target GRB261010 was observed successfully in r' band, with clear skies and seeing around 1.0".
After the first three full exposures in the r' band were completed, an error occurred during the execution of the subsequent part of the script. A new script was submitted but the OB was terminated early at the PI's request.
For the next OB, the observation could not be carried out because no guide star was found.
The target GRB260924 was observed successfully with clear skies and seeing around 1.0". |
Observed |
|
| 74-515 |
2026-10-11 |
01:29 |
ToO |
GRB261010A, GRB261011A, GRB260924A |
ALJj110064 - ALJj110069, ALJj110100 - ALJj110102, ALJj110149 - ALJj110154 |
All targets observed successfully:
Target GRB261010 observed with thin clouds and seeing around 1.0".
Target GRB261011 observed with clear skies and sub-arcsec seeing.
Target GRB260924 observed with clear skies and seeing around 0.8". |
Observed |
|
| 74-515 |
2026-10-16 |
00:18 |
ToO |
EP261015b |
ALJj160090 - ALJj160092 |
2 minutes lost due to technical reasons. Tried again after 20 minutes.
Observed under clear skies. Seeing ~0.9".
Helpful finding chart! |
Observed |
|
| 74-515 |
2026-10-18 |
00:00 |
ToO |
|
|
Target missed due to bad weather, 100% humidity. |
Failed |
|
| 74-515 |
2026-10-19 |
00:57 |
ToO |
EP261015a |
ALJj190129 - ALJj190138 |
Started to observe in decent conditions, however, clouds glided in soon. Please check if any of the data is useful.
i-band files ALJj190138-143 are not useful (TP 03-11-22026) |
Observed |
|
| 74-515 |
2026-10-22 |
01:25 |
ToO |
EP261015a |
ALJj220053 - ALJj220067 |
observed with clear skies and seeing around 1" |
Observed |
|
| 74-515 |
2026-10-26 |
00:00 |
SoftToO |
|
|
Target missed due to bad weather conditions - high humidity and thick clouds. |
Failed |
|
| 74-515 |
2026-10-28 |
03:07 |
ToO |
EP261015a, GRB261029A |
ALJj280017 - ALJj280036, ALJj280037 - ALJj280044, ALJj280045 - ALJj280050 |
Observed with r' and i' filters
Moon ~90% illum
Seeing ~0.8"
Airmass ~1.4
Observed with cloud coverage across the majority of the sky
First script ima_r_3x300s__z_5x200s observed with some high cloud present
Spec script spec_g4_s13_4x1200s: 3 exposures observed with thin clouds before aborting during the fourth exposure due to high humidity.
std_g4_s13 not run due to weather |
Observed |
|
| 74-515 |
2026-10-30 |
01:23 |
ToO |
GRB261029A, EP261015a |
ALJj300060 - ALJj300064, ALJj300087 - ALJj300106 |
1) grb261029a was observed under clear skies with sub arcsec seeing.
2) Initial attempt to observe ep261015a was canceled. The observation started with thin clouds and seeing ~0.7", but clouds rolled in after the half point of the OB. Also and more important, OB crashed halfway through (ALJj300081 first "corrupted" file) . Had to Ctrl+C out.
We were able to re-attempt the observation when the clouds cleared later in the night, so target was observed successfully with mostly clear skies and seeing around 0.7". |
Observed |
|
| 74-515 |
2026-11-04 |
01:55 |
ToO |
GRB261029A, EP261015a |
ALJk040097 - ALJk040106, ALJk040107 - ALJk040112 |
1) For GRB261029A. Observed under clear skies, seeing below 1.0".
2) EP261015a. Observed through seemingly thin clouds, seeing ~1.0". SNR looks bad on a few of the raw data, check if data overall is useful. |
Observed |
|
| 74-515 |
2026-11-06 |
00:51 |
SoftToO |
GRB261029A |
ALJk060039 - ALJk060047 |
Target observed under clear skies with seeing around 0.8 arcseconds. |
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
|
