image overlap message for exposure 2 of trigger 1325580
uvot_overlap.pl vrs. 2010-12-20b fem started at 250618d04h54m33s346731usUT
The observation of trigger 1325580 started 2025-06-17T21:18:16.6
Examining file ./1325580_g985_uvot_sky_image.fits
The exposure ID is 771887896
The exposure time is 149.868 (seconds)
The filter is WHITE.
The uvot region is centered at (332.9088,32.7323) with a roll angle of 57.6
It is square with sides of 2.68 arc min. for an area of 7.17 sq arc min
The BAT error circle is centered at (332.9020,32.7270) with a radius of 3.000 arc min
This is 0.466 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 7.17 sq. arc min or 0.25 of the BAT error circle
The XRT error circle is centered at (332.8967,32.7325) with a radius of 0.038 arc min
This is 0.611 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
image afterglow message for exposure 2 of trigger 1325580
find_uvot_ag.pl vrs. 2023-04-25a fem started at 250618d04h54m50s310264usUT
Observation start time is 2025-06-17T21:18:16.6
Examining file ./1325580_g985_uvot_catalog_image.fits
The exposure ID is 771887896
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 26 detected source(s) for 1325580_g985
Aspect correction adds 0.00106 degrees (0.256 sec of time = 3.22 arc sec) to RA
Aspect correction adds 0.00027 degrees ( 0.97 arcsec) to Dec
Total aspect correction is 3.37 arcsec
Star catalogs centered at 332.9066 , 32.7326 with radius 2.48 arc min.
n_usno: 137 n_gsc: 129
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 18 matched entries is 0.461" for 1325580_g985
Mean and std. dev of mag. difference (MAG_DELTA) are 1.372 and 0.571 for 1325580_g985
Found 8 entries without IDs and 8 entries that are acceptable afterglow candidates for 1325580_g985.
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.
Magnitude criteria will be applied later.
BAT distances are from RA=332.9020 (22:11:36.48) DEC=32.7270 (+32:43:37.2)
XRT distances are from RA=332.8967 (22:11:35.21) DEC=32.7325 (+32:43:57.0)
*** WARNING 30 per cent of entries have no IDs.
-----------------
Entry 2 in the list of sources is a candidate afterglow for 1325580_g985 with genie
ra=332.89678 (22:11:35.23) dec=32.73251 (+32:43:57.0) +/- 0.6" mag=18.45+/-0.15
dist=0.2 REFID=15 major=0.9 minor=0.8 flag=0
Found 9 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
332.8982 32.7286 14.7 -1 USNO-B1 18.68 17.97 18.28
332.8941 32.7376 20.0 -1 USNO-B1 20.07 18.62 19.27
332.8924 32.7310 14.2 -1 USNO-B1 20.49 19.79 20.10
332.8907 32.7344 19.7 -1 USNO-B1 20.31 18.48 19.30
332.8903 32.7329 19.8 -1 USNO-B1 99.99 19.79 99.99
332.8983 32.7285 15.1 -1 GSC2.3 18.09 19.10 18.31
332.8942 32.7376 19.8 -1 GSC2.3 18.23 20.83 99.99
332.8919 32.7319 14.9 -1 GSC2.3 19.72 21.82 99.99
332.8907 32.7344 19.5 -1 GSC2.3 18.32 20.83 18.81
uvot_check_outside found 11 of 11 good pixels
##### This source remains a candidate #####
It has no entries within 3.5" or brighter than 12 mag
-----------------
Entry 5 in the list of sources is a candidate afterglow for 1325580_g985 with genie
ra=332.90512 (22:11:37.23) dec=32.73957 (+32:44:22.4) +/- 0.6" mag=17.34+/-0.14
dist=36.0 REFID=13 major=9.3 minor=4.7 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 46.2 arc sec from the BAT position.
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
332.9031 32.7351 17.2 -1 USNO-B1 20.48 19.29 19.82
332.9043 32.7426 11.4 -1 USNO-B1 13.08 12.27 12.63
332.9085 32.7433 17.0 -1 USNO-B1 20.06 20.16 20.12
332.9031 32.7350 17.6 -1 GSC2.3 18.82 21.27 19.01
332.9043 32.7426 11.3 -1 GSC2.3 12.29 13.05 12.52
332.9090 32.7436 18.6 -1 GSC2.3 19.30 99.99 99.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 9.3
-----------------
Entry 8 in the list of sources is a candidate afterglow for 1325580_g985 with genie
ra=332.89888 (22:11:35.73) dec=32.74181 (+32:44:30.5) +/- 0.6" mag=18.45+/-0.15
dist=34.1 REFID=14 major=7.0 minor=3.5 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 54.1 arc sec from the BAT position.
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
332.9043 32.7426 16.6 -1 USNO-B1 13.08 12.27 12.63
332.8946 32.7446 16.3 -1 USNO-B1 14.80 13.54 14.10
332.9043 32.7426 16.8 -1 GSC2.3 12.29 13.05 12.52
332.8983 32.7408 3.9 -1 GSC2.3 99.99 22.47 99.99
332.8946 32.7444 16.1 -1 GSC2.3 13.51 14.86 13.78
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 7.0
-----------------
Entry 10 in the list of sources is a candidate afterglow for 1325580_g985 with genie
ra=332.89950 (22:11:35.88) dec=32.74337 (+32:44:36.1) +/- 0.6" mag=17.26+/-0.14
dist=40.0 REFID=7 major=8.7 minor=5.1 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 59.4 arc sec from the BAT position.
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
332.9043 32.7426 14.7 -1 USNO-B1 13.08 12.27 12.63
332.8946 32.7446 15.5 -1 USNO-B1 14.80 13.54 14.10
332.8953 32.7475 19.4 -1 USNO-B1 18.23 16.96 17.53
332.9043 32.7426 14.9 -1 GSC2.3 12.29 13.05 12.52
332.8983 32.7408 9.8 -1 GSC2.3 99.99 22.47 99.99
332.9043 32.7460 17.4 -1 GSC2.3 20.50 22.57 99.99
332.8946 32.7444 15.4 -1 GSC2.3 13.51 14.86 13.78
332.8954 32.7475 19.2 -1 GSC2.3 17.21 18.48 17.60
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 8.7
-----------------
Entry 11 in the list of sources is a candidate afterglow for 1325580_g985 with genie
ra=332.90837 (22:11:38.01) dec=32.74429 (+32:44:39.4) +/- 0.6" mag=18.50+/-0.15
dist=55.2 REFID=8 major=6.5 minor=2.6 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 65.2 arc sec from the BAT position.
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
332.9043 32.7426 13.7 -1 USNO-B1 13.08 12.27 12.63
332.9085 32.7433 3.4 -1 USNO-B1 20.06 20.16 20.12 *
332.9043 32.7426 13.6 -1 GSC2.3 12.29 13.05 12.52
332.9090 32.7436 3.2 -1 GSC2.3 19.30 99.99 99.99 *
332.9043 32.7460 13.8 -1 GSC2.3 20.50 22.57 99.99
332.9091 32.7495 18.8 -1 GSC2.3 20.10 99.99 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 12 mag
-----------------
Entry 13 in the list of sources is a candidate afterglow for 1325580_g985 with genie
ra=332.90642 (22:11:37.54) dec=32.74625 (+32:44:46.5) +/- 0.6" mag=18.49+/-0.15
dist=57.6 REFID=9 major=6.4 minor=2.5 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 70.6 arc sec from the BAT position.
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
332.9043 32.7426 14.5 -1 USNO-B1 13.08 12.27 12.63
332.9085 32.7433 12.2 -1 USNO-B1 20.06 20.16 20.12
332.9087 32.7513 19.5 -1 USNO-B1 20.22 18.46 19.24
332.9043 32.7426 14.5 -1 GSC2.3 12.29 13.05 12.52
332.9090 32.7436 12.4 -1 GSC2.3 19.30 99.99 99.99
332.9043 32.7460 6.5 -1 GSC2.3 20.50 22.57 99.99
332.9091 32.7495 14.1 -1 GSC2.3 20.10 99.99 99.99
332.9087 32.7513 19.4 -1 GSC2.3 18.23 20.65 18.79
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 6.4
-----------------
Entry 16 in the list of sources is a candidate afterglow for 1325580_g985 with genie
ra=332.92804 (22:11:42.73) dec=32.72399 (+32:43:26.4) +/- 0.7" mag=19.44+/-0.16
dist=99.7 REFID=23 major=0.9 minor=0.7 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 79.6 arc sec from the BAT position.
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
332.9288 32.7284 16.1 -1 USNO-B1 19.30 18.68 18.96
332.9287 32.7241 2.1 -1 USNO-B1 17.45 16.53 16.94 *
332.9295 32.7243 4.5 -1 USNO-B1 17.32 15.62 16.38
332.9288 32.7283 15.8 -1 GSC2.3 18.32 19.67 18.95
332.9283 32.7239 0.7 -1 GSC2.3 99.99 18.84 99.99 *
332.9295 32.7242 4.6 -1 GSC2.3 15.88 18.35 16.55
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 12 mag
-----------------
Entry 23 in the list of sources is a candidate afterglow for 1325580_g985 with genie
ra=332.93442 (22:11:44.26) dec=32.72918 (+32:43:45.0) +/- 0.6" mag=18.30+/-0.15
dist=114.8 REFID=17 major=0.6 minor=0.5 flag=19 (neighbor+blended+aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 98.5 arc sec from the BAT position.
This source is near the edge of image (0.990)
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
332.9288 32.7284 17.3 -1 USNO-B1 19.30 18.68 18.96
332.9347 32.7308 5.8 -1 USNO-B1 14.47 13.55 13.96
332.9288 32.7283 17.2 -1 GSC2.3 18.32 19.67 18.95
332.9347 32.7311 6.9 -1 GSC2.3 14.41 15.46 13.77
332.9348 32.7291 1.3 -1 GSC2.3 15.93 16.71 99.99 *
332.9382 32.7319 15.2 -1 GSC2.3 20.42 21.97 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 5.25" or brighter than 12 mag
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
Unmatched source ra=332.89678 (22:11:35.23) dec=32.73251 (+32:43:57.0) +/- 0.6" mag=18.45+/-0.15 dist=0.2 REFID=15 flag=0
There are 40786.074 counts in the bkg source region of 5516.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 7.394 counts/pixel (5-sig UL in 4" is 20.26 mag) for 1325580_g985
There are 958.29742 counts in the src source region of 49.000000 pixels.
Rate in src region with 4 arcsec radius is 19.557 counts/pixel for 1325580_g985
There are 8297.5332 counts in the cand_src_bkg source region of 1172.0000 pixels.
Rate in cand_src_bkg region from 15 to 25 arcsec is 7.080 counts/pixel (5-sig UL in 4" is 20.29 mag) for 1325580_g985
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 20.82, XRT distances < 5.75",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 1 good candidate(s) found.
Region file: 1325580_771887896_250618d04h54m50s310264usUT_bkg.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(332.9088,32.7323,45")
fk5;-circle(332.904090593144,32.7274873843719,6")
fk5;-circle(332.898190506568,32.7285801145803,6")
fk5;-circle(332.896781402908,32.732513101136,6")
fk5;-circle(332.909886316479,32.7300819846364,6")
fk5;-circle(332.905119572625,32.7395687690247,6")
fk5;-circle(332.898876473087,32.7418078233252,6")
fk5;-circle(332.904161922922,32.7424927047013,6")
fk5;-circle(332.899498224126,32.7433728173996,6")
fk5;-circle(332.908371603321,32.7442907375869,6")
fk5;-circle(332.90642314879,32.7462517608049,6")
Region file: 1325580_771887896_250618d04h54m50s310264usUT_cand_src.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(332.896781402908,32.732513101136,4")
Region file: 1325580_771887896_250618d04h54m50s310264usUT_cand_bkg.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(332.896781402908,32.732513101136,25")
fk5;-circle(332.896781402908,32.732513101136,15")
fk5;-circle(332.904090593144,32.7274873843719,6")
fk5;-circle(332.898190506568,32.7285801145803,6")
image paragraph message for exposure 2 of trigger 1325580
------ Start for Possible Stand-alone Circular ----
In response to GRB250617 (Swift/BAT trigger 1325580) at 21:01:50 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 950 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 22:11:35.23 = 332.89678
DEC(J2000) = +32:43:57.0 = 32.73251
with a 90%-confidence error radius of about 0.62 arc sec. This position is 0.2
arc sec. from the center of the XRT error circle. The estimated magnitude is
18.45 with a 1-sigma error of about 0.15. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.087.
------- notes for trigger 1325580 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 250618d04h54m54s135722usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1325580
-expid=771887896 -meonly -msg_image
Results from standard processing of UVOT TDRSS data for this trigger should be
available at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/1325580/
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 771887896.55948 or about 2025:169:21:18:11 UT
Found 1508 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 13% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 22 srclist
source(s) without IDs. There are 1 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 19.22 mag.
Found 26 source(s) in Genie image catalog. 1 source(s) are within 10.0" of the
xrt position. Found 8 Genie image source(s) without IDs. There are 1 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.82 mag. Found 133 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 15% of the Genie image region.
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?
771887896 950 WHITE 332.89706 32.73264 18.74/19.2 1.2 srclist Yes
771887896 950 WHITE 332.89678 32.73251 18.45/20.8 0.2 image Yes
List afterglow candidates for other finding charts.
771887742 796 WHITE 332.89698 32.73259 18.69/19.2 0.9 srclist Yes
771887742 796 WHITE 332.89686 32.73247 18.17/20.8 0.5 image Yes
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 32.73251
GRB_ERROR: 0.62
GRB_RA: 332.89678
IMAGE_START_TIME: 21:18:11
MAGNITUDE: 18.45
MAG_ERROR: 0.15
MESSAGE_TYPE: ACK
SOURCE: XRT