srclist overlap message for exposure 1 of trigger 1200812
uvot_overlap.pl vrs. 2010-12-20b fem started at 231206d00h47m34s140849usUT
The observation of trigger 1200812 started 2023-12-05T16:48:29.0
Examining file ./1200812_g268_uvot_sky_srclist.fits
The exposure ID is 723487708
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (54.1492,27.1458) with a roll angle of 282.6
It is square with sides of 8.03 arc min. for an area of 64.51 sq arc min
The BAT error circle is centered at (54.1540,27.1460) with a radius of 3.000 arc min
This is 0.256 arc min from the center of the uvot region
The area of the BAT error circle is 28.27 sq. arc min
The UVOT/BAT overlap is 28.27 sq. arc min or 1.00 of the BAT error circle
The XRT error circle is centered at (54.1487,27.1413) with a radius of 0.033 arc min
This is 0.270 arc min from the center of the uvot region
The area of the XRT error circle is 0.003 sq. arc min
The UVOT/XRT overlap is 0.003 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 1200812
find_uvot_ag.pl vrs. 2023-04-25a fem started at 231206d00h47m35s436382usUT
Observation start time is 2023-12-05T16:48:29.0
Examining file ./1200812_g268_uvot_catalog_srclist.fits
The exposure ID is 723487708
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 41 detected source(s) for 1200812_g268
Aspect correction adds -0.00107 degrees (-0.257 sec of time = -3.43 arc sec) to RA
Aspect correction adds 0.00069 degrees ( 2.49 arcsec) to Dec
Total aspect correction is 4.24 arcsec
Star catalogs centered at 54.1497 , 27.1336 with radius 6.38 arc min.
n_usno: 448 n_gsc: 449
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 10.7125
RA DEC Mag Color
bright star 0: 54.07135 (03:36:17.12) 27.07893 (+27:04:44.2) 10.71 USNO-V
Mean distance difference (CAT_DELTA) for 30 matched entries is 0.814" for 1200812_g268
Mean and std. dev of mag. difference (MAG_DELTA) are 2.206 and 0.411 for 1200812_g268
Found 11 entries without IDs and 6 entries that are acceptable afterglow candidates for 1200812_g268.
Acceptable entries have no ID, XRT distances < 5", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
0 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=54.1540 (03:36:36.96) DEC=27.1460 (+27:08:45.6)
XRT distances are from RA=54.1487 (03:36:35.70) DEC=27.1413 (+27:08:28.8)
*** WARNING 26 per cent of entries have no IDs.
-----------------
Entry 4 in the list of sources is a candidate afterglow for 1200812_g268 with 5x5 stamp
ra=54.17192 (03:36:41.26) dec=27.16561 (+27:09:56.2) +/- 1.1" mag=19.72+/-0.35
dist=114.6 REFID=26
*** The position of this source is inconsistent with the XRT position.
The position is 89.0 arc sec from the BAT position.
src: 4 distr. of nearby unmatched sources: 1 0 1 0 0
Found 4 entries in star catalog(s) within 20.0" of the candidate.
printing all entries
(Entries within 2 arc sec of a source list entry are considered a match)
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
54.1704 27.1660 5.0 -1 USNO-B1 15.10 13.59 14.26
54.1696 27.1679 11.1 -1 USNO-B1 19.87 17.09 18.32
54.1705 27.1659 4.8 -1 GSC2.3 13.78 14.95 13.84
54.1696 27.1679 11.3 -1 GSC2.3 17.92 20.76 99.99
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 5 in the list of sources is a candidate afterglow for 1200812_g268 with 5x5 stamp
ra=54.17167 (03:36:41.20) dec=27.16656 (+27:09:59.6) +/- 1.1" mag=19.26+/-0.35
dist=116.8 REFID=20
*** The position of this source is inconsistent with the XRT position.
The position is 91.3 arc sec from the BAT position.
src: 5 distr. of nearby unmatched sources: 1 1 0 0 0
Found 6 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
54.1704 27.1660 4.5 -1 USNO-B1 15.10 13.59 14.26
54.1696 27.1679 8.2 -1 USNO-B1 19.87 17.09 18.32
54.1742 27.1710 17.8 -1 USNO-B1 19.32 18.38 18.79
54.1705 27.1659 4.6 -1 GSC2.3 13.78 14.95 13.84
54.1696 27.1679 8.4 -1 GSC2.3 17.92 20.76 99.99
54.1743 27.1709 17.7 -1 GSC2.3 17.82 18.90 18.26
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 8 in the list of sources is a candidate afterglow for 1200812_g268 with 5x5 stamp
ra=54.14242 (03:36:34.18) dec=27.11533 (+27:06:55.2) +/- 1.1" mag=20.43+/-0.35
dist=95.8 REFID=40
*** The position of this source is inconsistent with the XRT position.
The position is 117.5 arc sec from the BAT position.
src: 8 distr. of nearby unmatched sources: 0 0 0 0 0
Found 3 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
54.1395 27.1132 12.0 -1 USNO-B1 20.71 18.91 19.71
54.1373 27.1162 16.6 -1 GSC2.3 20.59 99.99 99.99
54.1396 27.1131 11.9 -1 GSC2.3 18.56 20.86 19.25
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 11 in the list of sources is a candidate afterglow for 1200812_g268 with 5x5 stamp
ra=54.20705 (03:36:49.69) dec=27.14728 (+27:08:50.2) +/- 1.1" mag=20.20+/-0.35
dist=188.0 REFID=41
*** The position of this source is inconsistent with the XRT position.
The position is 166.8 arc sec from the BAT position.
src: 11 distr. of nearby unmatched sources: 0 1 0 0 0
Found 2 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
54.2081 27.1463 5.0 -1 USNO-B1 16.10 14.28 15.09
54.2082 27.1463 5.2 -1 GSC2.3 14.38 15.81 14.62
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 12 in the list of sources is a candidate afterglow for 1200812_g268 with 5x5 stamp
ra=54.15669 (03:36:37.61) dec=27.19233 (+27:11:32.4) +/- 1.1" mag=20.30+/-0.35
dist=185.3 REFID=39
*** The position of this source is inconsistent with the XRT position.
The position is 166.9 arc sec from the BAT position.
src: 12 distr. of nearby unmatched sources: 0 0 0 0 0
Found 2 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
54.1558 27.1920 3.0 -1 USNO-B1 18.22 16.52 17.27 *
54.1559 27.1920 2.9 -1 GSC2.3 16.49 17.90 16.99 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 14 in the list of sources is a candidate afterglow for 1200812_g268 with 5x5 stamp
ra=54.20932 (03:36:50.24) dec=27.14561 (+27:08:44.2) +/- 1.1" mag=19.76+/-0.35
dist=194.6 REFID=31
*** The position of this source is inconsistent with the XRT position.
The position is 174.0 arc sec from the BAT position.
src: 14 distr. of nearby unmatched sources: 0 1 0 0 0
Found 2 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
54.2081 27.1463 4.4 -1 USNO-B1 16.10 14.28 15.09
54.2082 27.1463 4.3 -1 GSC2.3 14.38 15.81 14.62
*** If XRT position is correct, then this is NOT the afterglow
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.22, XRT distances < 5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
srclist paragraph message for exposure 1 of trigger 1200812
------ Start for Possible Stand-alone Circular ----
In response to GRB231205 (Swift/BAT trigger 1200812) at 16:43:59 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 236 seconds after the BAT trigger. No credible afterglow candidate has
been found in the initial data products. The 2.7'x2.7' sub-image covers 100% of
the XRT error circle. The typical 3-sigma upper limit has been about 19.6 mag.
The 8'x8' region for the list of sources generated on-board covers 100% of the
XRT error circle. The list of sources is typically complete to about 18 mag. No
correction has been made for the expected extinction corresponding to E(B-V) of
0.204.
------- notes for trigger 1200812 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 231206d00h47m37s898478usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1200812
-expid=723487708 -meonly -msg_srclist
Results from standard processing of UVOT TDRSS data for this trigger should be
available at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/1200812/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
XRT position found for srclist. XRT position found for Genie image. BAT
position found.
UVOT exposure began at MET 723487708.9621 or about 2023:339:16:48:23 UT
Found 449 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 7% of the srclist region. Found 41 sources in
srclist catalog. Found 11 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
19.22 mag.
Found 5 source(s) in Genie image catalog. Found 0 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 20.57 mag. Found 69 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 8% of the
Genie image region. The Genie image is INCOMPLETE with 4860 null pixels.
Genie image analysis:
Found 69405.3 counts in the large background region of 5973.0 pixels or a rate
of 11.620 counts/pixel in a radius of 45.0 arcsec. Based on this background,
the typical 5-sigma UL at a random point in the Genie image is 19.84 mag. for a
4-arcsec aperture.
Found 2359.5 counts in the XRT position region of 199.0 pixels or a rate of
11.857 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is 0.243 +/- 0.349 (1-sigma) cps or
21.14 mag and a range from 20.17 to 99.99 mag. The 3-sigma UL at the XRT
position is 1.292 cps or 19.33 mag. The closest srclist source has ra= 54.1478
dec= 27.1514 mag=19.51 sep=36.45". The closest Genie source has ra= 54.1411
dec= 27.1402 mag=19.94 sep=24.92".
All AG candidates sorted by magnitude for the current finding chart.
(U/V/White SRCLIST mags < 17.5/17.5/18.5 are reliable. Mag > 18.5/18.5/19.5 are
not. Others are uncertain.)
(U/V/White Genie image mags < 18.0/18.0/19.0 are reliable. Mag > 19.0/19.0/20.0
are not. Others are uncertain.)
(Magnitudes followed by * have been corrected for exposure.)
---MET--- -dt- filter ---RA-- ---DEC--- -MAG/Limit Dist(") Source Asp.Corr?
723487708 236 WHITE srclist found no candidates.
723487708 236 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 27.14133
GRB_ERROR: 5
GRB_RA: 54.14875
IMAGE_START_TIME: 16:48:23
MAGNITUDE: 19.3
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT