P73-503: High-cadence Lens Monitoring of the unique ZigZag lens for Cosmography
PI: Steafan Schuldt
This is a Monitoring program to do 35 min ALFOSC R-band imaging
as often as possible.
Scheduled dates:
April: 1,2,3,4,5,7,11,12,13,14,15,16,20,23,27,30
May: 1,2,3,5,9,10,11,12,13,14,15,16,20,22,24,25,26,27,28,30,31
For the observer:
In order to schedule the target in Visplot, cut and paste the following line:
ZigZag 17 21 44.25 +88 42 21.56 2000 2200 73-503 LST[0.0-24.0] Monitor ALFOSC:IMA:SPECIAL:alfosc_rband
Go to the directory
cd ~/scripts/73-503
and execute the script:
SPECIAL_SCRIPT_zigzag
Please, update the
Monitoring tracking log of this program.
Finding chart: Simbad identifier [LAM2018] J1721+8842
| Program Tracking |
| Proposal |
73-503 |
| Semester |
P73: 20260401 - 20261001 |
| Principal Investigator |
Stefan Schuldt |
| Programme |
High-cadence Lens Monitoring of the unique ZigZag lens for Cosmography |
| Instrument |
ALFOSC |
| Time Allocation |
35 min on about 120 nights |
| Total Nights |
7N |
| Type |
Monitoring |
| Notes |
Fixed dates to be scheduled |
| Total Time Spent |
04:21 (hh:mm)
|
| Proposal |
Date |
Time |
Type |
Targets |
Files |
Comments |
Status |
|
| 73-503 |
2026-04-01 |
00:43 |
Monitoring |
ZigZag |
ALJd010128 - ALJd010139 |
Observed in dusty conditions with full moon i.e., high sky illumination.
On the first attempt two images were ruined due to the guide star being lost.
Considering the bad conditions and extra time there was in the schedule I simply re-ran the script however the guiding was lost at two points again and two of the exposures were readout prematurely because of this. Please note the exposure times in the EON. The seeing was below 1.5 in the first set of images and slightly higher in most of the latter.
Please inspect the images individually. |
Observed |
|
| 73-503 |
2026-04-02 |
00:37 |
Monitoring |
ZigZag |
ALJd020099 - ALJd020104 |
Observed with good seeing but high air-dust-level.
The first attempt was cancelled as the seeing was above 1.5". I tried again later and the seeing was below that. However the guide star, which I had to select manually was pushed out of the guide probe area by the dithering pattern so I restarted the script. Meaning the images are not according to the 3x3 dither pattern. |
Observed |
|
| 73-503 |
2026-04-04 |
00:00 |
Monitoring |
None |
None |
Night lost due to humidity |
Failed |
|
| 73-503 |
2026-04-05 |
00:00 |
Monitoring |
|
|
OB script interrupted due to high levels of humidity forcing the telescope to close. |
Failed |
|
| 73-503 |
2026-04-07 |
00:38 |
Monitoring |
ZigZag |
ALJd070160 - ALJd070166 |
Observed with clear sky and seeing bit above 2" |
Observed |
|
| 73-503 |
2026-04-11 |
00:29 |
Monitoring |
ZigZag |
ALJd110164 - ALJd110168 |
Observed under clear skies and seeing fluctuating between 1.2"-1.6". A cloud came in towards the end of the observation and telescope had to auto close due to high humidity. Most data should still be good, but please review. |
Observed |
|
| 73-503 |
2026-04-12 |
00:38 |
Monitoring |
ZigZag |
ALJd120153 - ALJd120159 |
Bad seeing 2.0 or worse |
Observed |
|
| 73-503 |
2026-04-13 |
00:35 |
Monitoring |
ZigZag |
ALJd130210 - ALJd130215 |
OK |
Observed |
|
| 73-503 |
2026-04-14 |
00:00 |
Monitoring |
|
|
Seeing at field much higher than useful limit (4"). Observation skipped. |
Failed |
|
| 73-503 |
2026-04-15 |
00:41 |
Monitoring |
ZigZag |
ALJd150137 - ALJd150143 |
Observed using the 'special script' with clear skies and good seeing 1.2-1.4. |
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
|
