srclist overlap message for exposure 3 of trigger 1131397
uvot_overlap.pl vrs. 2010-12-20b fem started at 221027d23h19m14s355074usUT
The observation of trigger 1131397 started 2022-10-27T19:28:41.7
Examining file ./1131397_g902_uvot_sky_srclist.fits
The exposure ID is 688591721
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (225.6025,47.4428) with a roll angle of 195.0
It is square with sides of 12.05 arc min. for an area of 145.15 sq arc min
The BAT error circle is centered at (225.6030,47.4480) with a radius of 3.000 arc min
This is 0.315 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 (225.6210,47.4421) with a radius of 0.037 arc min
This is 0.749 arc min from the center of the uvot region
The area of the XRT error circle is 0.004 sq. arc min
The UVOT/XRT overlap is 0.004 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 3 of trigger 1131397
find_uvot_ag.pl vrs. 2020-10-30 fem started at 221027d23h19m30s305782usUT
Observation start time is 2022-10-27T19:28:41.7
Examining file ./1131397_g902_uvot_catalog_srclist.fits
The exposure ID is 688591721
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 90 detected source(s) for 1131397_g902
Aspect correction adds 0.00038 degrees (0.092 sec of time = 0.94 arc sec) to RA
Aspect correction adds -0.00128 degrees (-4.59 arcsec) to Dec
Total aspect correction is 4.69 arcsec
Star catalogs centered at 225.6291 , 47.4431 with radius 8.93 arc min.
n_usno: 822 n_gsc: 0
*** WARNING -- bright star catalog has 3 entries brighter than 12 mag
The brightest has mag 10.93886
RA DEC Mag Color
bright star 0: 225.61052 (15:02:26.52) 47.51909 (+47:31:08.7) 11.52 USNO-V
bright star 1: 225.54531 (15:02:10.87) 47.49833 (+47:29:54.0) 10.94 USNO-V
bright star 2: 225.83564 (15:03:20.55) 47.45347 (+47:27:12.5) 11.35 USNO-V
Mean distance difference (CAT_DELTA) for 51 matched entries is 0.730" for 1131397_g902
Mean and std. dev of mag. difference (MAG_DELTA) are 1.213 and 0.715 for 1131397_g902
Found 41 entries without IDs and 8 entries that are acceptable afterglow candidates for 1131397_g902.
Acceptable entries have no ID, XRT distances < 5.5", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
33 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=225.6030 (15:02:24.72) DEC=47.4480 (+47:26:52.8)
XRT distances are from RA=225.6210 (15:02:29.03) DEC=47.4421 (+47:26:31.4)
*** WARNING 45 per cent of entries have no IDs.
-----------------
Entry 9 in the list of sources is a candidate afterglow for 1131397_g902 with 3x3 stamp
ra=225.67470 (15:02:41.93) dec=47.45606 (+47:27:21.8) +/- 1.1" mag=19.90+/-0.35
dist=140.2 REFID=79
*** The position of this source is inconsistent with the XRT position.
The position is 176.9 arc sec from the BAT position.
src: 9 distr. of nearby unmatched sources: 0 0 2 2 3
Found 3 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
225.6741 47.4591 11.2 -1 USNO-B1 20.96 19.93 20.39
225.6753 47.4595 12.5 -1 USNO-B1 19.12 19.67 19.43
225.6787 47.4594 15.4 -1 USNO-B1 13.13 12.59 12.83 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 10 in the list of sources is a candidate afterglow for 1131397_g902 with 3x3 stamp
ra=225.67401 (15:02:41.76) dec=47.46114 (+47:27:40.1) +/- 1.1" mag=20.03+/-0.35
dist=146.3 REFID=89
*** The position of this source is inconsistent with the XRT position.
The position is 179.2 arc sec from the BAT position.
src: 10 distr. of nearby unmatched sources: 0 2 1 2 1
Found 4 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
225.6741 47.4591 7.2 -1 USNO-B1 20.96 19.93 20.39
225.6753 47.4595 6.7 -1 USNO-B1 19.12 19.67 19.43
225.6787 47.4594 13.0 -1 USNO-B1 13.13 12.59 12.83 *
225.6787 47.4633 13.9 -1 USNO-B1 20.91 19.91 20.36
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 11 in the list of sources is a candidate afterglow for 1131397_g902 with 3x3 stamp
ra=225.67550 (15:02:42.12) dec=47.46261 (+47:27:45.4) +/- 1.1" mag=19.70+/-0.35
dist=152.0 REFID=74
*** The position of this source is inconsistent with the XRT position.
The position is 184.1 arc sec from the BAT position.
src: 11 distr. of nearby unmatched sources: 0 2 1 1 2
Found 4 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
225.6741 47.4591 12.9 -1 USNO-B1 20.96 19.93 20.39
225.6753 47.4595 11.1 -1 USNO-B1 19.12 19.67 19.43
225.6787 47.4594 14.0 -1 USNO-B1 13.13 12.59 12.83 *
225.6787 47.4633 8.3 -1 USNO-B1 20.91 19.91 20.36
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 12 in the list of sources is a candidate afterglow for 1131397_g902 with 3x3 stamp
ra=225.67616 (15:02:42.28) dec=47.46104 (+47:27:39.8) +/- 1.1" mag=19.96+/-0.35
dist=150.7 REFID=80
*** The position of this source is inconsistent with the XRT position.
The position is 184.2 arc sec from the BAT position.
src: 12 distr. of nearby unmatched sources: 0 3 1 2 1
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
225.6741 47.4591 8.5 -1 USNO-B1 20.96 19.93 20.39
225.6753 47.4595 5.9 -1 USNO-B1 19.12 19.67 19.43
225.6787 47.4594 8.6 -1 USNO-B1 13.13 12.59 12.83 *
225.6787 47.4633 10.3 -1 USNO-B1 20.91 19.91 20.36
225.6826 47.4594 16.9 -1 USNO-B1 20.88 19.95 20.36
225.6833 47.4594 18.4 -1 USNO-B1 21.15 19.95 20.48
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 13 in the list of sources is a candidate afterglow for 1131397_g902 with 3x3 stamp
ra=225.67826 (15:02:42.78) dec=47.45868 (+47:27:31.2) +/- 1.1" mag=18.53+/-0.35
dist=151.8 REFID=47
*** The position of this source is inconsistent with the XRT position.
The position is 187.2 arc sec from the BAT position.
src: 13 distr. of nearby unmatched sources: 0 2 4 1 0
Found 8 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
225.6741 47.4591 10.3 -1 USNO-B1 20.96 19.93 20.39
225.6753 47.4595 7.8 -1 USNO-B1 19.12 19.67 19.43
225.6787 47.4594 2.7 -1 USNO-B1 13.13 12.59 12.83 *
225.6787 47.4633 16.7 -1 USNO-B1 20.91 19.91 20.36
225.6826 47.4594 10.9 -1 USNO-B1 20.88 19.95 20.36
225.6833 47.4594 12.6 -1 USNO-B1 21.15 19.95 20.48
225.6852 47.4594 17.0 -1 USNO-B1 20.61 19.94 20.24
225.6854 47.4592 17.5 -1 USNO-B1 20.33 20.20 20.26
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 1131397_g902 with 3x3 stamp
ra=225.67928 (15:02:43.03) dec=47.45628 (+47:27:22.6) +/- 1.1" mag=19.90+/-0.35
dist=150.9 REFID=84
*** The position of this source is inconsistent with the XRT position.
The position is 188.1 arc sec from the BAT position.
src: 14 distr. of nearby unmatched sources: 0 1 2 2 2
Found 7 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
225.6741 47.4591 16.3 -1 USNO-B1 20.96 19.93 20.39
225.6753 47.4595 15.1 -1 USNO-B1 19.12 19.67 19.43
225.6787 47.4594 11.3 -1 USNO-B1 13.13 12.59 12.83 *
225.6826 47.4594 13.8 -1 USNO-B1 20.88 19.95 20.36
225.6833 47.4594 15.0 -1 USNO-B1 21.15 19.95 20.48
225.6852 47.4594 18.3 -1 USNO-B1 20.61 19.94 20.24
225.6854 47.4592 18.3 -1 USNO-B1 20.33 20.20 20.26
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 17 in the list of sources is a candidate afterglow for 1131397_g902 with 3x3 stamp
ra=225.68099 (15:02:43.44) dec=47.46164 (+47:27:41.9) +/- 1.1" mag=19.72+/-0.35
dist=162.2 REFID=69
*** The position of this source is inconsistent with the XRT position.
The position is 196.1 arc sec from the BAT position.
src: 17 distr. of nearby unmatched sources: 0 0 3 3 0
Found 8 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
225.6741 47.4591 19.1 -1 USNO-B1 20.96 19.93 20.39
225.6753 47.4595 15.8 -1 USNO-B1 19.12 19.67 19.43
225.6787 47.4594 9.9 -1 USNO-B1 13.13 12.59 12.83 *
225.6787 47.4633 8.1 -1 USNO-B1 20.91 19.91 20.36
225.6826 47.4594 9.1 -1 USNO-B1 20.88 19.95 20.36
225.6833 47.4594 9.9 -1 USNO-B1 21.15 19.95 20.48
225.6852 47.4594 12.9 -1 USNO-B1 20.61 19.94 20.24
225.6854 47.4592 14.0 -1 USNO-B1 20.33 20.20 20.26
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 18 in the list of sources is a candidate afterglow for 1131397_g902 with 3x3 stamp
ra=225.68304 (15:02:43.93) dec=47.45756 (+47:27:27.2) +/- 1.1" mag=19.96+/-0.35
dist=161.1 REFID=82
*** The position of this source is inconsistent with the XRT position.
The position is 197.9 arc sec from the BAT position.
src: 18 distr. of nearby unmatched sources: 0 0 2 1 2
Found 5 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
225.6787 47.4594 12.5 -1 USNO-B1 13.13 12.59 12.83 *
225.6826 47.4594 6.6 -1 USNO-B1 20.88 19.95 20.36
225.6833 47.4594 6.7 -1 USNO-B1 21.15 19.95 20.48
225.6852 47.4594 8.5 -1 USNO-B1 20.61 19.94 20.24
225.6854 47.4592 8.3 -1 USNO-B1 20.33 20.20 20.26
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
There are no candidates inside BAT error circle, but outside XRT error circle.
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.22, XRT distances < 5.5",
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 3 of trigger 1131397
------ Start for Possible Stand-alone Circular ----
In response to GRB221027 (Swift/BAT trigger 1131397) at 19:13:38 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 872 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
0.033.
------- notes for trigger 1131397 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 221027d23h19m32s664342usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1131397
-expid=688591721 -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/1131397/
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 688591721.70658 or about 2022:300:19:28:36 UT
Found 818 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 7% of the srclist region. Found 90 sources in
srclist catalog. Found 41 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 3 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 20.67 mag. Found 68 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 9% of the
Genie image region.
Genie image analysis:
Found 60138.6 counts in the large background region of 6212.0 pixels or a rate
of 9.681 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 19.94 mag. for a
4-arcsec aperture.
Found 1951.9 counts in the XRT position region of 200.0 pixels or a rate of
9.760 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is -0.201 +/- 0.318 (1-sigma) cps. The
3-sigma UL at the XRT position is 0.953 cps or 19.66 mag. The closest srclist
source has ra= 225.5990 dec= 47.4478 mag=20.00 sep=57.23". The closest Genie
source has ra= 225.5989 dec= 47.4477 mag=19.73 sep=57.42".
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?
688591721 872 WHITE srclist found no candidates.
688591721 872 WHITE image found no candidates.
List afterglow candidates for other finding charts.
688590979 130 WHITE srclist found no candidates.
688590979 130 WHITE image found no candidates.
688591192 343 U srclist found no candidates.
688591192 343 U image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 47.44206
GRB_ERROR: 5.5
GRB_RA: 225.62096
IMAGE_START_TIME: 19:28:36
MAGNITUDE: 19.7
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT