srclist overlap message for exposure 2 of trigger 1327910
uvot_overlap.pl vrs. 2010-12-20b fem started at 250625d21h44m06s740248usUT
The observation of trigger 1327910 started 2025-06-25T16:10:15.2
Examining file ./1327910_g318_uvot_sky_srclist.fits
The exposure ID is 772560615
The exposure time is undefined.
The filter is U.
The uvot region is centered at (261.5156,22.2711) with a roll angle of 343.4
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 (261.5190,22.2650) with a radius of 3.000 arc min
This is 0.411 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 (261.5089,22.2673) with a radius of 0.038 arc min
This is 0.439 arc min from the center of the uvot region
The area of the XRT error circle is 0.005 sq. arc min
The UVOT/XRT overlap is 0.005 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 2 of trigger 1327910
find_uvot_ag.pl vrs. 2023-04-25a fem started at 250625d21h44m20s938283usUT
Observation start time is 2025-06-25T16:10:15.2
Examining file ./1327910_g318_uvot_catalog_srclist.fits
The exposure ID is 772560615
The exposure is 249.935 sec.
The bin size is 2 pixels
The filter is U
There are 165 detected source(s) for 1327910_g318
Aspect correction adds -0.00010 degrees (-0.025 sec of time = -0.34 arc sec) to RA
Aspect correction adds 0.00123 degrees ( 4.42 arcsec) to Dec
Total aspect correction is 4.43 arcsec
Star catalogs centered at 261.5185 , 22.2727 with radius 8.36 arc min.
n_usno: 1229 n_gsc: 1242
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.97328
RA DEC Mag Color
bright star 0: 261.64156 (17:26:33.97) 22.33241 (+22:19:56.7) 11.97 USNO-V
Mean distance difference (CAT_DELTA) for 145 matched entries is 0.821" for 1327910_g318
Mean and std. dev of mag. difference (MAG_DELTA) are 1.132 and 0.765 for 1327910_g318
Found 22 entries without IDs and 12 entries that are acceptable afterglow candidates for 1327910_g318.
Acceptable entries have no ID, XRT distances < 5.75", 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=261.5190 (17:26:04.56) DEC=22.2650 (+22:15:54.0)
XRT distances are from RA=261.5089 (17:26:02.13) DEC=22.2673 (+22:16:02.3)
-----------------
Entry 14 in the list of sources is a candidate afterglow for 1327910_g318 with 3x3 stamp
ra=261.53993 (17:26:09.58) dec=22.27600 (+22:16:33.6) +/- 1.1" mag=18.26+/-0.35
dist=108.1 REFID=93
*** The position of this source is inconsistent with the XRT position.
The position is 80.2 arc sec from the BAT position.
src: 14 distr. of nearby unmatched sources: 0 0 0 0 0
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
261.5387 22.2758 4.2 -1 USNO-B1 14.01 13.50 13.73
261.5426 22.2756 9.0 -1 USNO-B1 20.71 19.87 20.24
261.5386 22.2758 4.5 -1 GSC2.3 13.07 13.81 13.33
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 18 in the list of sources is a candidate afterglow for 1327910_g318 with 1x1 stamp
ra=261.48990 (17:25:57.58) dec=22.27078 (+22:16:14.8) +/- 1.1" mag=18.79+/-0.35
dist=64.4 REFID=153
*** The position of this source is inconsistent with the XRT position.
The position is 99.2 arc sec from the BAT position.
src: 18 distr. of nearby unmatched sources: 0 2 1 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
261.4958 22.2719 20.0 -1 USNO-B1 20.37 19.20 19.72
261.4914 22.2741 12.9 -1 USNO-B1 20.07 19.23 19.60
261.4886 22.2731 9.4 -1 USNO-B1 12.54 11.80 12.13 *
261.4916 22.2742 13.7 -1 GSC2.3 99.99 99.99 99.99
261.4890 22.2746 13.9 -1 GSC2.3 99.99 99.99 99.99
261.4886 22.2731 9.4 -1 GSC2.3 99.99 99.99 12.18 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 19 in the list of sources is a candidate afterglow for 1327910_g318 with 3x3 stamp
ra=261.48940 (17:25:57.45) dec=22.27266 (+22:16:21.6) +/- 1.1" mag=17.97+/-0.35
dist=67.7 REFID=75
*** The position of this source is inconsistent with the XRT position.
The position is 102.4 arc sec from the BAT position.
src: 19 distr. of nearby unmatched sources: 1 2 0 0 0
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
261.4914 22.2741 8.5 -1 USNO-B1 20.07 19.23 19.60
261.4886 22.2731 3.0 -1 USNO-B1 12.54 11.80 12.13 *
261.4916 22.2742 9.4 -1 GSC2.3 99.99 99.99 99.99
261.4890 22.2746 7.0 -1 GSC2.3 99.99 99.99 99.99
261.4886 22.2731 3.0 -1 GSC2.3 99.99 99.99 12.18 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 20 in the list of sources is a candidate afterglow for 1327910_g318 with 3x3 stamp
ra=261.48954 (17:25:57.49) dec=22.27328 (+22:16:23.8) +/- 1.1" mag=17.75+/-0.35
dist=67.9 REFID=96
*** The position of this source is inconsistent with the XRT position.
The position is 102.6 arc sec from the BAT position.
src: 20 distr. of nearby unmatched sources: 2 1 0 0 0
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
261.4914 22.2741 6.9 -1 USNO-B1 20.07 19.23 19.60
261.4886 22.2731 3.0 -1 USNO-B1 12.54 11.80 12.13 *
261.4916 22.2742 7.8 -1 GSC2.3 99.99 99.99 99.99
261.4890 22.2746 4.9 -1 GSC2.3 99.99 99.99 99.99
261.4886 22.2731 3.0 -1 GSC2.3 99.99 99.99 12.18 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 21 in the list of sources is a candidate afterglow for 1327910_g318 with 3x3 stamp
ra=261.48996 (17:25:57.59) dec=22.27455 (+22:16:28.4) +/- 1.1" mag=18.96+/-0.35
dist=68.2 REFID=124
*** The position of this source is inconsistent with the XRT position.
The position is 102.7 arc sec from the BAT position.
src: 21 distr. of nearby unmatched sources: 1 1 1 0 0
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
261.4914 22.2741 5.2 -1 USNO-B1 20.07 19.23 19.60
261.4886 22.2731 6.8 -1 USNO-B1 12.54 11.80 12.13 *
261.4916 22.2742 5.7 -1 GSC2.3 99.99 99.99 99.99
261.4890 22.2746 3.1 -1 GSC2.3 99.99 99.99 99.99 *
261.4886 22.2731 6.8 -1 GSC2.3 99.99 99.99 12.18 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 26 in the list of sources is a candidate afterglow for 1327910_g318 with 3x3 stamp
ra=261.53921 (17:26:09.41) dec=22.29222 (+22:17:32.0) +/- 1.1" mag=18.92+/-0.35
dist=135.1 REFID=88
*** The position of this source is inconsistent with the XRT position.
The position is 118.9 arc sec from the BAT position.
src: 26 distr. of nearby unmatched sources: 1 0 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
261.5356 22.2896 15.3 -1 USNO-B1 20.47 19.46 19.91
261.5358 22.2895 15.1 -1 USNO-B1 20.84 99.99 99.99
261.5395 22.2928 2.4 -1 USNO-B1 17.02 16.04 16.48 *
261.5356 22.2895 15.5 -1 GSC2.3 19.61 99.99 99.99
261.5395 22.2928 2.2 -1 GSC2.3 16.09 16.87 16.55 *
261.5407 22.2966 16.5 -1 GSC2.3 20.05 21.46 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 33 in the list of sources is a candidate afterglow for 1327910_g318 with 3x3 stamp
ra=261.56439 (17:26:15.45) dec=22.27047 (+22:16:13.7) +/- 1.1" mag=18.31+/-0.35
dist=185.3 REFID=69
*** The position of this source is inconsistent with the XRT position.
The position is 152.5 arc sec from the BAT position.
src: 33 srclist_match has ID
src: 33 distr. of nearby unmatched sources: 3 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
261.5642 22.2710 2.0 -1 USNO-B1 17.38 16.61 16.95 *
261.5642 22.2709 1.8 -1 GSC2.3 16.71 17.34 16.86 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 34 in the list of sources is a candidate afterglow for 1327910_g318 with 1x1 stamp
ra=261.56489 (17:26:15.57) dec=22.27064 (+22:16:14.3) +/- 1.1" mag=18.65+/-0.35
dist=187.0 REFID=145
*** The position of this source is inconsistent with the XRT position.
The position is 154.2 arc sec from the BAT position.
src: 34 distr. of nearby unmatched sources: 2 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
261.5642 22.2710 2.6 -1 USNO-B1 17.38 16.61 16.95 *
261.5642 22.2709 2.4 -1 GSC2.3 16.71 17.34 16.86 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 35 in the list of sources is a candidate afterglow for 1327910_g318 with 1x1 stamp
ra=261.56501 (17:26:15.60) dec=22.27117 (+22:16:16.2) +/- 1.1" mag=18.79+/-0.35
dist=187.5 REFID=165
*** The position of this source is inconsistent with the XRT position.
The position is 154.9 arc sec from the BAT position.
src: 35 distr. of nearby unmatched sources: 2 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
261.5642 22.2710 2.7 -1 USNO-B1 17.38 16.61 16.95 *
261.5642 22.2709 2.7 -1 GSC2.3 16.71 17.34 16.86 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 38 in the list of sources is a candidate afterglow for 1327910_g318 with 3x3 stamp
ra=261.54900 (17:26:11.76) dec=22.22888 (+22:13:44.0) +/- 1.1" mag=19.01+/-0.35
dist=192.4 REFID=118
*** The position of this source is inconsistent with the XRT position.
The position is 164.0 arc sec from the BAT position.
src: 38 srclist_match has ID
src: 38 distr. of nearby unmatched sources: 1 1 0 0 0
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
261.5467 22.2292 7.7 -1 USNO-B1 16.55 15.20 15.80
261.5471 22.2292 6.4 -1 USNO-B1 15.58 14.63 15.05
261.5482 22.2291 2.9 -1 USNO-B1 17.09 15.50 16.20 *
261.5465 22.2292 8.3 -1 GSC2.3 15.44 16.56 15.96
261.5486 22.2290 1.5 -1 GSC2.3 16.40 17.75 16.76 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 44 in the list of sources is a candidate afterglow for 1327910_g318 with 3x3 stamp
ra=261.49889 (17:25:59.73) dec=22.30902 (+22:18:32.5) +/- 1.1" mag=19.01+/-0.35
dist=153.8 REFID=112
*** The position of this source is inconsistent with the XRT position.
The position is 172.0 arc sec from the BAT position.
src: 44 srclist_match has ID
src: 44 distr. of nearby unmatched sources: 0 0 0 0 0
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
261.5003 22.3080 5.9 -1 USNO-B1 20.67 20.11 20.36
261.4987 22.3096 2.0 -1 USNO-B1 18.24 17.53 17.85 *
261.5004 22.3078 6.6 -1 GSC2.3 20.23 99.99 99.99
261.4988 22.3095 1.6 -1 GSC2.3 17.67 18.26 18.00 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 54 in the list of sources is a candidate afterglow for 1327910_g318 with 1x1 stamp
ra=261.53770 (17:26:09.05) dec=22.31504 (+22:18:54.2) +/- 1.1" mag=18.52+/-0.35
dist=196.8 REFID=146
*** The position of this source is inconsistent with the XRT position.
The position is 190.6 arc sec from the BAT position.
src: 54 distr. of nearby unmatched sources: 0 0 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
261.5331 22.3133 16.4 -1 USNO-B1 99.99 17.53 99.99
261.5376 22.3145 2.0 -1 USNO-B1 18.89 17.45 18.09 *
261.5431 22.3151 17.9 -1 USNO-B1 20.83 20.00 20.37
261.5333 22.3133 16.0 -1 GSC2.3 16.15 17.00 16.43
261.5377 22.3144 2.5 -1 GSC2.3 17.69 19.03 18.36 *
261.5434 22.3151 19.0 -1 GSC2.3 20.02 99.99 99.99
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:
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 18.12, XRT distances < 5.75",
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 2 of trigger 1327910
------ Start for Possible Stand-alone Circular ----
In response to GRB250625 (Swift/BAT trigger 1327910) at 16:04:56 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 250 seconds with the U filter starting
282 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 19.2 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 18.0 mag. No
correction has been made for the expected extinction corresponding to E(B-V) of
0.054.
------- notes for trigger 1327910 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 250625d21h44m24s059333usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1327910
-expid=772560615 -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/1327910/
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 772560615.21912 or about 2025:177:16:10:10 UT
Found 1237 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 12% of the srclist region. Found 165 sources in
srclist catalog. Found 22 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
18.12 mag.
Found 15 source(s) in Genie image catalog. Found 1 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 20.69 mag. Found 111 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
13% of the Genie image region.
Genie image analysis:
Found 10095.8 counts in the large background region of 5492.0 pixels or a rate
of 1.838 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 19.93 mag. for a
4-arcsec aperture.
Found 345.6 counts in the XRT position region of 198.0 pixels or a rate of
1.745 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is -0.058 +/- 0.081 (1-sigma) cps. The
3-sigma UL at the XRT position is 0.243 cps or 19.67 mag. The closest srclist
source has ra= 261.5081 dec= 22.2620 mag=18.71 sep=19.34". The closest Genie
source has ra= 261.5083 dec= 22.2620 mag=17.82 sep=19.23".
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?
772560615 282 U srclist found no candidates.
772560615 282 U image found no candidates.
List afterglow candidates for other finding charts.
772560456 123 WHITE srclist found no candidates.
772560456 123 WHITE image found no candidates.
772561192 859 WHITE srclist found no candidates.
772561192 859 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: u
GRB_DEC: 22.26731
GRB_ERROR: 5.75
GRB_RA: 261.50887
IMAGE_START_TIME: 16:10:10
MAGNITUDE: 19.7
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT