srclist overlap message for exposure 1 of trigger 1336720
uvot_overlap.pl vrs. 2010-12-20b fem started at 250725d04h36m04s223470usUT
The observation of trigger 1336720 started 2025-07-25T02:06:52.1
Examining file ./1336720_g915_uvot_sky_srclist.fits
The exposure ID is 775102012
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (35.4425,-82.7835) with a roll angle of 86.7
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 (35.3850,-82.7840) with a radius of 3.000 arc min
This is 0.434 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 (35.4793,-82.7912) with a radius of 0.037 arc min
This is 0.540 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 1 of trigger 1336720
find_uvot_ag.pl vrs. 2023-04-25a fem started at 250725d04h36m05s968752usUT
Observation start time is 2025-07-25T02:06:52.1
Examining file ./1336720_g915_uvot_catalog_srclist.fits
The exposure ID is 775102012
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 58 detected source(s) for 1336720_g915
Aspect correction adds 0.00612 degrees (1.468 sec of time = 2.77 arc sec) to RA
Aspect correction adds -0.00040 degrees (-1.45 arcsec) to Dec
Total aspect correction is 3.12 arcsec
Star catalogs centered at 35.4807 , -82.7816 with radius 6.33 arc min.
n_usno: 369 n_gsc: 358
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 46 matched entries is 0.757" for 1336720_g915
Mean and std. dev of mag. difference (MAG_DELTA) are 1.363 and 0.645 for 1336720_g915
Found 14 entries without IDs and 12 entries that are acceptable afterglow candidates for 1336720_g915.
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.
Magnitude criteria will be applied later.
BAT distances are from RA=35.3850 (02:21:32.40) DEC=-82.7840 (-82:47:02.4)
XRT distances are from RA=35.4793 (02:21:55.04) DEC=-82.7912 (-82:47:28.4)
-----------------
Entry 13 in the list of sources is a candidate afterglow for 1336720_g915 with 5x5 stamp
ra=35.34972 (02:21:23.93) dec=-82.82739 (-82:49:38.6) +/- 1.1" mag=19.99+/-0.35
dist=142.6 REFID=33
*** The position of this source is inconsistent with the XRT position.
The position is 157.0 arc sec from the BAT position.
src: 13 distr. of nearby unmatched sources: 1 1 1 6 2
Found 5 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
35.3685 -82.8287 9.7 -1 USNO-B1 12.47 12.16 12.30 *
35.3514 -82.8287 4.6 -1 USNO-B1 99.99 17.49 99.99
35.3274 -82.8285 10.8 -1 USNO-B1 21.53 19.95 20.65
35.3462 -82.8223 18.4 -1 GSC2.3 99.99 22.07 99.99
35.3685 -82.8287 9.7 -1 GSC2.3 99.99 99.99 12.32 *
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 1336720_g915 with 3x3 stamp
ra=35.38319 (02:21:31.97) dec=-82.82946 (-82:49:46.0) +/- 1.1" mag=20.18+/-0.35
dist=144.3 REFID=49
*** The position of this source is inconsistent with the XRT position.
The position is 163.6 arc sec from the BAT position.
src: 17 distr. of nearby unmatched sources: 2 3 2 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
35.3894 -82.8248 17.0 -1 USNO-B1 22.02 18.88 20.27
35.4161 -82.8283 15.3 -1 USNO-B1 21.25 99.99 99.99
35.3969 -82.8293 6.2 -1 USNO-B1 21.76 99.99 99.99
35.3685 -82.8287 7.1 -1 USNO-B1 12.47 12.16 12.30 *
35.3514 -82.8287 14.6 -1 USNO-B1 99.99 17.49 99.99
35.3670 -82.8331 15.0 -1 USNO-B1 21.81 19.68 20.63
35.4252 -82.8280 19.6 -1 GSC2.3 19.33 20.26 99.99
35.3685 -82.8287 7.1 -1 GSC2.3 99.99 99.99 12.32 *
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 1336720_g915 with 3x3 stamp
ra=35.38085 (02:21:31.40) dec=-82.82998 (-82:49:47.9) +/- 1.1" mag=20.03+/-0.35
dist=146.4 REFID=48
*** The position of this source is inconsistent with the XRT position.
The position is 165.5 arc sec from the BAT position.
src: 18 distr. of nearby unmatched sources: 1 4 3 2 1
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
35.3894 -82.8248 19.1 -1 USNO-B1 22.02 18.88 20.27
35.4161 -82.8283 16.9 -1 USNO-B1 21.25 99.99 99.99
35.3969 -82.8293 7.6 -1 USNO-B1 21.76 99.99 99.99
35.3685 -82.8287 7.1 -1 USNO-B1 12.47 12.16 12.30 *
35.3514 -82.8287 14.1 -1 USNO-B1 99.99 17.49 99.99
35.3670 -82.8331 12.9 -1 USNO-B1 21.81 19.68 20.63
35.3685 -82.8287 7.1 -1 GSC2.3 99.99 99.99 12.32 *
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 1336720_g915 with 3x3 stamp
ra=35.33946 (02:21:21.47) dec=-82.82974 (-82:49:47.1) +/- 1.1" mag=20.00+/-0.35
dist=152.2 REFID=47
*** The position of this source is inconsistent with the XRT position.
The position is 165.9 arc sec from the BAT position.
src: 19 distr. of nearby unmatched sources: 0 4 1 4 3
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
35.3685 -82.8287 13.5 -1 USNO-B1 12.47 12.16 12.30 *
35.3514 -82.8287 6.6 -1 USNO-B1 99.99 17.49 99.99
35.3274 -82.8285 7.0 -1 USNO-B1 21.53 19.95 20.65
35.3670 -82.8331 17.3 -1 USNO-B1 21.81 19.68 20.63
35.3685 -82.8287 13.5 -1 GSC2.3 99.99 99.99 12.32 *
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 1336720_g915 with 3x3 stamp
ra=35.39208 (02:21:34.10) dec=-82.83026 (-82:49:48.9) +/- 1.1" mag=19.96+/-0.35
dist=145.9 REFID=43
*** The position of this source is inconsistent with the XRT position.
The position is 166.6 arc sec from the BAT position.
src: 20 distr. of nearby unmatched sources: 1 4 1 2 2
Found 9 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
35.3894 -82.8248 19.7 -1 USNO-B1 22.02 18.88 20.27
35.4277 -82.8282 17.7 -1 USNO-B1 21.73 20.33 20.95
35.4161 -82.8283 12.8 -1 USNO-B1 21.25 99.99 99.99
35.3969 -82.8293 4.1 -1 USNO-B1 21.76 99.99 99.99
35.3685 -82.8287 11.9 -1 USNO-B1 12.47 12.16 12.30 *
35.3514 -82.8287 19.2 -1 USNO-B1 99.99 17.49 99.99
35.3670 -82.8331 15.2 -1 USNO-B1 21.81 19.68 20.63
35.4252 -82.8280 16.9 -1 GSC2.3 19.33 20.26 99.99
35.3685 -82.8287 11.9 -1 GSC2.3 99.99 99.99 12.32 *
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 1336720_g915 with 3x3 stamp
ra=35.32317 (02:21:17.56) dec=-82.83081 (-82:49:50.9) +/- 1.1" mag=20.27+/-0.35
dist=158.9 REFID=51
*** The position of this source is inconsistent with the XRT position.
The position is 170.8 arc sec from the BAT position.
src: 21 distr. of nearby unmatched sources: 0 1 2 2 3
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
35.3514 -82.8287 14.9 -1 USNO-B1 99.99 17.49 99.99
35.3274 -82.8285 8.5 -1 USNO-B1 21.53 19.95 20.65
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 22 in the list of sources is a candidate afterglow for 1336720_g915 with 3x3 stamp
ra=35.37752 (02:21:30.61) dec=-82.83146 (-82:49:53.3) +/- 1.1" mag=20.36+/-0.35
dist=151.9 REFID=54
*** The position of this source is inconsistent with the XRT position.
The position is 170.9 arc sec from the BAT position.
src: 22 distr. of nearby unmatched sources: 2 4 1 4 1
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
35.3969 -82.8293 11.7 -1 USNO-B1 21.76 99.99 99.99
35.3685 -82.8287 10.6 -1 USNO-B1 12.47 12.16 12.30 *
35.3514 -82.8287 15.5 -1 USNO-B1 99.99 17.49 99.99
35.3670 -82.8331 7.6 -1 USNO-B1 21.81 19.68 20.63
35.3685 -82.8287 10.6 -1 GSC2.3 99.99 99.99 12.32 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 23 in the list of sources is a candidate afterglow for 1336720_g915 with 3x3 stamp
ra=35.37473 (02:21:29.93) dec=-82.83160 (-82:49:53.8) +/- 1.1" mag=19.93+/-0.35
dist=152.8 REFID=58
*** The position of this source is inconsistent with the XRT position.
The position is 171.4 arc sec from the BAT position.
src: 23 distr. of nearby unmatched sources: 3 4 1 3 1
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
35.3969 -82.8293 13.0 -1 USNO-B1 21.76 99.99 99.99
35.3685 -82.8287 10.7 -1 USNO-B1 12.47 12.16 12.30 *
35.3514 -82.8287 14.9 -1 USNO-B1 99.99 17.49 99.99
35.3670 -82.8331 6.4 -1 USNO-B1 21.81 19.68 20.63
35.3685 -82.8287 10.7 -1 GSC2.3 99.99 99.99 12.32 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 24 in the list of sources is a candidate afterglow for 1336720_g915 with 5x5 stamp
ra=35.35332 (02:21:24.80) dec=-82.83146 (-82:49:53.3) +/- 1.1" mag=19.72+/-0.35
dist=155.5 REFID=34
*** The position of this source is inconsistent with the XRT position.
The position is 171.5 arc sec from the BAT position.
src: 24 distr. of nearby unmatched sources: 0 3 7 2 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
35.3685 -82.8287 11.9 -1 USNO-B1 12.47 12.16 12.30 *
35.3514 -82.8287 10.2 -1 USNO-B1 99.99 17.49 99.99
35.3274 -82.8285 15.8 -1 USNO-B1 21.53 19.95 20.65
35.3670 -82.8331 8.5 -1 USNO-B1 21.81 19.68 20.63
35.3685 -82.8287 11.9 -1 GSC2.3 99.99 99.99 12.32 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 25 in the list of sources is a candidate afterglow for 1336720_g915 with 3x3 stamp
ra=35.38426 (02:21:32.22) dec=-82.83165 (-82:49:53.9) +/- 1.1" mag=20.14+/-0.35
dist=151.7 REFID=46
*** The position of this source is inconsistent with the XRT position.
The position is 171.5 arc sec from the BAT position.
src: 25 distr. of nearby unmatched sources: 2 4 1 1 3
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
35.4161 -82.8283 18.6 -1 USNO-B1 21.25 99.99 99.99
35.3969 -82.8293 10.2 -1 USNO-B1 21.76 99.99 99.99
35.3685 -82.8287 12.7 -1 USNO-B1 12.47 12.16 12.30 *
35.3514 -82.8287 18.3 -1 USNO-B1 99.99 17.49 99.99
35.3670 -82.8331 9.3 -1 USNO-B1 21.81 19.68 20.63
35.3685 -82.8287 12.7 -1 GSC2.3 99.99 99.99 12.32 *
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 1336720_g915 with 3x3 stamp
ra=35.36548 (02:21:27.72) dec=-82.83203 (-82:49:55.3) +/- 1.1" mag=19.96+/-0.35
dist=155.6 REFID=41
*** The position of this source is inconsistent with the XRT position.
The position is 173.1 arc sec from the BAT position.
src: 26 distr. of nearby unmatched sources: 1 3 6 2 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
35.3969 -82.8293 17.2 -1 USNO-B1 21.76 99.99 99.99
35.3685 -82.8287 11.9 -1 USNO-B1 12.47 12.16 12.30 *
35.3514 -82.8287 13.7 -1 USNO-B1 99.99 17.49 99.99
35.3670 -82.8331 3.9 -1 USNO-B1 21.81 19.68 20.63 *
35.3685 -82.8287 11.9 -1 GSC2.3 99.99 99.99 12.32 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 31 in the list of sources is a candidate afterglow for 1336720_g915 with 3x3 stamp
ra=35.34966 (02:21:23.92) dec=-82.83544 (-82:50:07.6) +/- 1.1" mag=20.69+/-0.35
dist=169.5 REFID=57
*** The position of this source is inconsistent with the XRT position.
The position is 185.9 arc sec from the BAT position.
src: 31 distr. of nearby unmatched sources: 0 0 2 3 5
Found 1 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
35.3670 -82.8331 11.5 -1 USNO-B1 21.81 19.68 20.63
*** 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 < 5.5",
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 1336720
------ Start for Possible Stand-alone Circular ----
In response to GRB250725 (Swift/BAT trigger 1336720) at 01:51:36 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 879 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
0.114.
------- notes for trigger 1336720 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 250725d04h36m12s743238usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1336720
-expid=775102012 -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/1336720/
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 775102012.0902 or about 2025:207:02:06:47 UT
Found 365 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 6% of the srclist region. Found 58 sources in
srclist catalog. Found 14 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 6 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 20.95 mag. Found 58 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 6% of the
Genie image region.
Genie image analysis:
Found 35800.5 counts in the large background region of 6194.0 pixels or a rate
of 5.780 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 20.22 mag. for a
4-arcsec aperture.
Found 1101.8 counts in the XRT position region of 193.0 pixels or a rate of
5.709 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is 0.068 +/- 0.238 (1-sigma) cps or
22.52 mag and a range from 20.89 to 99.99 mag. The 3-sigma UL at the XRT
position is 0.781 cps or 19.87 mag. The closest srclist source has ra= 35.5728
dec= -82.7922 mag=18.54 sep=42.36". The closest Genie source has ra= 35.5721
dec= -82.7922 mag=17.98 sep=42.05".
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?
775102012 879 WHITE srclist found no candidates.
775102012 879 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: -82.79122
GRB_ERROR: 5.5
GRB_RA: 35.47933
IMAGE_START_TIME: 02:06:47
MAGNITUDE: 19.9
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT