| Program Tracking |
| Proposal |
73-501 |
| Semester |
P73: 20260401 - 20261001 |
| Principal Investigator |
Pouya M. Kouch |
| Programme |
Multiwavelength Photo-polarimetric Monitoring of Blazars |
| Instrument |
ALFOSC |
| Time Allocation |
26.4 hours monitoring spread over period |
| Total Nights |
26.4h |
| Type |
Monitoring |
| Notes |
Fixed dates to be scheduled |
| Total Time Spent |
27:00 (hh:mm)
|
| Proposal |
Date |
Time |
Type |
Targets |
Files |
Comments |
Status |
|
| 73-501 |
2026-04-11 |
00:47 |
Monitoring |
S5_0716+714, S4_0954+65, 1ES1011+496,
Mrk421, ON325, 1ES1218+304, ON231 |
ALJd110060 - ALJd110064, ALJd110090 - ALJd110099, ALJd110119 - ALJd110123, ALJd110139 - ALJd110153 |
Observed under clear skies and mostly good seeing. |
Observed |
|
| 73-501 |
2026-04-12 |
00:32 |
Monitoring |
Mrk501, PG1553+113, PKS1510-089,
PG_1424+240, 1ES1959+650 |
ALJd120133-152, 177-181 |
Bad seeing, clear sky |
Observed |
|
| 73-501 |
2026-04-20 |
01:33 |
Monitoring |
S5_0716+714, 1ES1011+496, S4_0954+65,
Mrk421, 1ES1218+304, ON325, ON231,
PKS1510-089, PG_1424+240, PG1553+113,
Mrk501, 1ES1959+650, BL_Lac |
ALJd200119 - ALJd200123, ALJd200135 - ALJd200139, ALJd200140 - ALJd200144, ALJd200145 - ALJd200148, ALJd200149 - ALJd200149, ALJd200162 - ALJd200166, ALJd200167 - ALJd200171, ALJd200172 - ALJd200176, ALJd200177 - ALJd200181, ALJd200182 - ALJd200186 |
Observed through some thin clouds and seeing varying between 0.5-1.1''
Database error because there are too many filenames. Here is a full list of the files produced:
ALJd200119 - ALJd200123, ALJd200135 - ALJd200139, ALJd200140 - ALJd200144,
ALJd200145 - ALJd200148, ALJd200149 - ALJd200149, ALJd200162 - ALJd200166,
ALJd200167 - ALJd200171, ALJd200172 - ALJd200176, ALJd200177 - ALJd200181,
ALJd200182 - ALJd200186, ALJd200187 - ALJd200191, ALJd200192 - ALJd200196,
ALJd200197 - ALJd200201, ALJd200202 - ALJd200206 |
Observed |
|
| 73-501 |
2026-04-27 |
01:32 |
Monitoring |
S5_0716+714, S4_0954+65, 1ES1011+496,
Mrk421, ON325, 1ES1218+304, ON231,
PKS1510-089, PG_1424+240, Mrk501,
PG1553+113, 1ES1959+650, BL_Lac |
ALJd270130 - ALJd270134, ALJd270152 - ALJd270166, ALJd270175 - ALJd270189, ALJd270212 - ALJd270221, ALJd270240 - ALJd270249, ALJd270282 - ALJd270291 |
Observed all OBs with clear skies and seeing from 0.6" to 0.9". |
Observed |
|
| 73-501 |
2026-05-05 |
01:10 |
Monitoring |
S5_0716+714, S4_0954+65, 1ES1011+496,
Mrk421, ON231, ON325, 1ES1218+304,
PG_1424+240, PG1553+113, PKS1510-089,
Mrk501 |
ALJe050060-4,85-99,103-137 |
All but two targets were observed with clear skies and good seeing. The last two were missed due to high humidity at the end of the night. |
Observed |
|
| 73-501 |
2026-05-11 |
01:21 |
Monitoring |
S5_0716+714, S4_0954+65, 1ES1011+496,
ON325, Mrk421, ON231, 1ES1218+304,
PKS1510-089, PG_1424+240, PG1553+113,
Mrk501, 1ES1959+650, BL_Lac |
|
Good seeing and clear skies for all targets |
Observed |
|
| 73-501 |
2026-05-15 |
01:38 |
Monitoring |
Mrk421, S4_0954+65, 1ES1011+496,
PKS1510-089, PG_1424+240 |
ALJe150060 - ALJe150063, ALJe150064 - ALJe150064, ALJe150065 - ALJe150069, ALJe150070 - ALJe150074, ALJe150100 - ALJe150104, ALJe150105 - ALJe150109 |
Observed under clear skies with good seeing less than 1.4" |
Observed |
|
| 73-501 |
2026-05-16 |
00:42 |
Monitoring |
ON325, 1ES1218+304, PG1553+113, Mrk501,
1ES1959+650, BL_Lac |
ALJe160099 - ALJe160108, ALJe160146 - ALJe160165 |
Observed under clear skies and very varying seeing. |
Observed |
|
| 73-501 |
2026-05-24 |
01:27 |
Monitoring |
S4_0954+65, 1ES1011+496, Mrk421, ON325,
PKS1510-089, 1ES1218+304, ON231,
PG_1424+240, Mrk501, PG1553+113,
1ES1959+650, BL_Lac, 1ES2344+514 |
ALJe240070 - ALJe240109, ALJe240128 - ALJe240152 |
Observed under clear skies and seeing between sub-arcsec and 1.6". |
Observed |
|
| 73-501 |
2026-05-31 |
01:21 |
Monitoring |
1ES1011+496, S4_0954+65, Mrk421,
1ES1218+304, ON325, ON231, PKS1510-089,
PG_1424+240, PG1553+113, BL_Lac, Mrk501,
1ES1959+650, 1ES2344+514 |
ALJe310083 - ALJe310097 , ALJe310118 - ALJe310132 , ALJe310142 - ALJe310151, ALJe310158 - ALJe310162, ALJe310171 - ALJe310185, ALJe310195 - ALJe310201 |
Early targets observed under thin clouds and seeing around 1.0"
Later targets observed under clear skies and sub-arcsecond seeing |
Observed |
|
| 73-501 |
2026-06-05 |
00:42 |
Monitoring |
S4_0954+65, 1ES1011+496, Mrk421, ON231,
ON325, 1ES1218+304 |
ALJf050069 - ALJf050073, ALJf050074 - ALJf050078, ALJf050079 - ALJf050082, ALJf050083, ALJf050084 - ALJf050088, ALJf050089 - ALJf050093,ALJf050097 - ALJf050101 |
Observed with clear sky and strong winds, seeing was rather high, varying between 1.8-4". |
Observed |
|
| 73-501 |
2026-06-09 |
00:06 |
Monitoring |
1ES1959+650 |
ALJf090206 - ALJf090210 |
Clear skies and seeing around 1.2" |
Observed |
|
| 73-501 |
2026-06-10 |
00:47 |
Monitoring |
Mrk421, 1ES1011+496, S4_0954+65,
1ES1959+650, PKS1510-089, PG1553+113,
PG_1424+240 |
ALJf100189 - ALJf100202 , ALJf100277 - ALJf100296 |
Targets observed under clear skies, stable conditions, and seeing around 1.1" |
Observed |
|
| 73-501 |
2026-06-11 |
00:42 |
Monitoring |
Mrk501, ON231, ON325, 1ES1218+304,
1ES1959+650, 1ES2344+514, BL_Lac |
ALJf110164 - ALJf110183 , ALJf110212 - ALJf110216, ALjf110283 - ALjf110287, ALjf110288 - ALjf110292 |
Clear skies and sub-arcsecond seeing for targets during first half of night.
Clear Skies and 0.8-1.0" seeing for second half of night. We note that for ALjf110283 - ALjf110287 impol, the target was offset right-of-centre. |
Observed |
|
| 73-501 |
2026-06-12 |
00:06 |
Monitoring |
1ES1959+650 |
ALJf120090 - ALJf120094 |
Short and sweet. |
Observed |
|
| 73-501 |
2026-06-13 |
00:08 |
Monitoring |
1ES1959+650 |
ALJf130076 - ALJf130080 |
Observed under clear skies and sub-arcsec seeing. |
Observed |
|
| 73-501 |
2026-06-14 |
00:07 |
Monitoring |
1ES1959+650 |
ALJf140077 - ALJf140081 |
Observed under varying conditions and occasional cluds and seeing around 2.2". |
Observed |
|
| 73-501 |
2026-06-16 |
00:31 |
Monitoring |
1ES1011+496, Mrk421, PKS1510-089,
PG_1424+240, PG1553+113 |
ALJf160068 - ALJf160095 |
All targets observed with clear skies |
Observed |
|
| 73-501 |
2026-06-17 |
00:44 |
Monitoring |
ON325, 1ES1218+304, ON231, Mrk501,
1ES1959+650, BL_Lac, 1ES2344+514 |
|
All targets observed with clear skies and good seeing |
Observed |
|
| 73-501 |
2026-06-23 |
01:11 |
Monitoring |
Mrk421, ON325, 1ES1218+304, ON231,
PG_1424+240, PKS1510-089, PG1553+113,
Mrk501, 1ES1959+650, BL_Lac, 1ES2344+514 |
ALJf230098 - ALJf230117, ALJf230132 - ALJf230146, ALJf230153 - ALJf230157, ALJf230170 - ALJf230174, ALJf230187 - ALJf230198 |
Clear skies, sub-arc seeing.
First frame of mrk421 photometry was corrupted - exposure repeated. |
Observed |
|
| 73-501 |
2026-06-29 |
00:56 |
Monitoring |
Mrk421, PKS1510-089, PG_1424+240,
PG1553+113, Mrk501, 1ES1959+650, BL_Lac,
1ES2344+514 |
ALJf290137 - ALJf290141, ALJf290164 - ALJf290168, ALJf290192 - ALJf290196, ALJf290209 - ALJf290213, ALJf290222 - ALJf290226, ALJf290233 - ALJf290237, ALJf290238 - ALJf290242, ALJf290243 - ALJf290248 |
Targets observed with subarcsec seeing. Some scheduled monitors were missed due to ToOs and technical faults. |
Observed |
|
| 73-501 |
2026-07-04 |
00:32 |
Monitoring |
ON231, ON325, 1ES1218+304, PKS1510-089,
PG_1424+240 |
ALJg040142 - ALJg040146, ALJg040147 - ALJg040151, ALJg040152 - ALJg040156, ALJg040157 - ALJg040161, ALJg040162 - ALJg040166 |
Targets observed successfully, with clear skies and a seeing varying between 0.6"-0.8". |
Observed |
|
| 73-501 |
2026-07-05 |
00:36 |
Monitoring |
PG1553+113, Mrk501, BL_Lac, 1ES2344+514,
1ES1959+650 |
ALJg050085 - ALJg050089, ALJg050090 - ALJg050094, ALJg050134 - ALJg050138, ALJg050156 - ALJg050160, ALJg050161 - ALJg050165 |
All targets observed successfully, with clear skies and seeing varying between 0.7"-1.1". |
Observed |
|
| 73-501 |
2026-07-13 |
01:00 |
Monitoring |
1ES1218+304, ON325, ON231, PKS1510-089,
PG_1424+240, PG1553+113, Mrk501,
1ES1959+650, BL_Lac, 1ES2344+514 |
ALJg130146 - ALJg130150 ALJg130065 - ALJg130069, ALJg130072 - ALJg130091, ALJg130113 - ALJg130117, ALJg130122 - ALJg130126, ALJg130146 - ALJg130150, ALJg130164 - ALJg130173 |
Clear skies, approx. 1 arcsec. seeing. |
Observed |
|
| 73-501 |
2026-07-19 |
00:27 |
Monitoring |
PKS1510-089, PG_1424+240, PG1553+113,
Mrk501 |
ALJg190143 - ALJg190152, ALJg190163 - ALJg190167, ALJg190177 - ALJg190181 |
clear sky, good/ok seeing |
Observed |
|
| 73-501 |
2026-07-20 |
00:20 |
Monitoring |
1ES1959+650, BL_Lac, 1ES2344+514 |
ALJg200059 - ALJg200063, ALJg200239 - ALJg200243, ALJg200244 - ALJg200248 |
All targets observed succesfully with clear skies |
Observed |
|
| 73-501 |
2026-07-27 |
00:32 |
Monitoring |
Mrk501, PKS1510-089, PG_1424+240,
PG1553+113 |
ALJg270076-ALJg270095 |
observed with clear skies, good seeing of about 1". |
Observed |
|
| 73-501 |
2026-07-28 |
00:21 |
Monitoring |
1ES1959+650, 1ES2344+514, BL_Lac |
ALJg280119 - ALJg280123, ALJg280124 - ALJg280128, ALJg280161 - ALJg280165 |
observed with thin clouds or clear sky, seeing below 1.2". |
Observed |
|
| 73-501 |
2026-08-05 |
00:27 |
Monitoring |
PKS1510-089, BL_Lac, 1ES2344+514,
1ES1959+650 |
ALJh050093 - ALJh050107, ALJh050117 - ALJh050121 |
Targets observed with clear skies and seeing around 1.4 |
Observed |
|
| 73-501 |
2026-08-10 |
00:26 |
Monitoring |
PKS1510-089, PG_1424+240, PG1553+113,
Mrk501 |
ALJh100053 - ALJh100057, ALJh100062 - ALJh100076 |
clear skies, good seeing. |
Observed |
|
| 73-501 |
2026-08-11 |
00:26 |
Monitoring |
Mrk501, 1ES1959+650, BL_Lac, 1ES2344+514 |
ALJh110101 - ALJh110105, ALJh110182 - ALJh110186, ALJh110191 - ALJh110195, ALJh110196 - ALJh110200 |
clear skies, good seeing |
Observed |
|
| 73-501 |
2026-08-15 |
00:25 |
Monitoring |
PKS1510-089, PG_1424+240, PG1553+113,
Mrk501 |
ALJh150057 - ALJh150066, ALJh150076 - ALJh150085 |
Observed in clear skies and seeing below 1". |
Observed |
|
| 73-501 |
2026-08-16 |
00:22 |
Monitoring |
1ES1959+650, BL_Lac, 1ES2344+514 |
ALJh160137 - ALJh160141, ALJh160145 - ALJh160149, ALJh160180 - ALJh160184 |
|
Observed |
|
| 73-501 |
2026-08-24 |
00:27 |
Monitoring |
PG_1424+240, PG1553+113, Mrk501,
1ES1959+650 |
ALJh240144 - ALJh240159, ALJh240166 - ALJh240170 |
Observed with good seeing on slightly dusty sky. Moon was up during the observations. CTRL-C:d Mrk501 repeats the broad band observation without polarizer unit since there was a tracking issue when running the script for the first time (notice double image in file ALJh240154). |
Observed |
|
| 73-501 |
2026-08-25 |
00:22 |
Monitoring |
BL_Lac, 1ES2344+514, TXS0506 |
ALJh250117 - ALJh250121, ALJh250160 - ALJh250169 |
Observed on clear sky with good seeing. PSF distortion were affecting especially BL Lac observation. |
Observed |
|
| 73-501 |
2026-09-07 |
00:26 |
Monitoring |
PG1553+113, Mrk501, 1ES1959+650, BL_Lac |
ALJi070057 - ALJi070061, ALJi070062 - ALJi070066, ALJi070078 - ALJi070082, ALJi070083 - ALJi070087 |
Observed with clear sky, high levels of dust, and seeing about 1.0'' |
Observed |
|
| 73-501 |
2026-09-08 |
00:22 |
Monitoring |
1ES2344+514, TXS0506, S5_0716+714 |
ALJi080126 - ALJi080130, ALJi080196 - ALJi080200, ALJi080201 - ALJi080205 |
Observed with clear sky, high levels of dust, and seeing about 0.9'' - 1.1'' |
Observed |
|
| 73-501 |
2026-09-12 |
00:27 |
Monitoring |
Mrk501, PG1553+113, 1ES1959+650, BL_Lac |
ALJi120109-ALJi120118, ALJi120122 - ALJi120126, ALJi120147 - ALJi120151 |
All targets observed with clear, dusty sky and good seeing. |
Observed |
|
| 73-501 |
2026-09-14 |
00:25 |
Monitoring |
1ES2344+514, TXS0506+056, S5_0716+714 |
ALJi140135 - ALJi140139, ALJi140256 - ALJi140262, ALJi140263 - ALJi140267 |
Two targets observed successfully, S5_0716+714 observed outside LST limits during twilight |
Observed |
|
| 73-501 |
2026-09-23 |
00:22 |
Monitoring |
BL_Lac, 1ES1959+650, Mrk501 |
ALJi230009 - ALJi230013, ALJi230014 - ALJi230018, ALJi230021 - ALJi230025 |
Observed under dusty skies, thin clouds, and seeing less than 1.2" |
Observed |
|
| 73-501 |
2026-09-24 |
00:12 |
Monitoring |
1ES2344+514, TXS0506+056 |
ALJi240032 - ALJi240036, ALJi240051 - ALJi240055 |
Observed under thin clouds, dusty skies, and seeing less than 2.0". Had to abort several scripts due to clouds coming in. |
Observed |
|
| 73-501 |
2026-09-30 |
00:00 |
Monitoring |
|
|
Target missed due to high humidity. |
Failed |
|
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
|
