image overlap message for exposure 1 of trigger 1325580
uvot_overlap.pl vrs. 2010-12-20b fem started at 250618d04h54m32s655345usUT
The observation of trigger 1325580 started 2025-06-17T21:15:42.6
Examining file ./1325580_g831_uvot_sky_image.fits
The exposure ID is 771887742
The exposure time is 149.802 (seconds)
The filter is WHITE.
The uvot region is centered at (332.9095,32.7310) 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 0.449 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 0.654 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 1 of trigger 1325580
find_uvot_ag.pl vrs. 2023-04-25a fem started at 250618d04h54m36s099029usUT
Observation start time is 2025-06-17T21:15:42.6
Examining file ./1325580_g831_uvot_catalog_image.fits
The exposure ID is 771887742
The exposure is 149.802 sec.
The bin size is 2 pixels
The filter is WHITE
There are 26 detected source(s) for 1325580_g831
Aspect correction adds 0.00092 degrees (0.220 sec of time = 2.77 arc sec) to RA
Aspect correction adds 0.00050 degrees ( 1.80 arcsec) to Dec
Total aspect correction is 3.31 arcsec
Star catalogs centered at 332.9068 , 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 0.581" for 1325580_g831
Mean and std. dev of mag. difference (MAG_DELTA) are 1.296 and 0.489 for 1325580_g831
Found 8 entries without IDs and 8 entries that are acceptable afterglow candidates for 1325580_g831.
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_g831 with genie
ra=332.89686 (22:11:35.25) dec=32.73247 (+32:43:56.9) +/- 0.6" mag=18.17+/-0.15
dist=0.5 REFID=15 major=1.0 minor=0.9 flag=0
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
332.8982 32.7286 14.5 -1 USNO-B1 18.68 17.97 18.28
332.8924 32.7310 14.3 -1 USNO-B1 20.49 19.79 20.10
332.8983 32.7285 14.9 -1 GSC2.3 18.09 19.10 18.31
332.8919 32.7319 15.2 -1 GSC2.3 19.72 21.82 99.99
332.8907 32.7344 19.8 -1 GSC2.3 18.32 20.83 18.81
uvot_check_outside found 13 of 13 good pixels
##### This source remains a candidate #####
It has no entries within 3.5" or brighter than 12 mag
-----------------
Entry 4 in the list of sources is a candidate afterglow for 1325580_g831 with genie
ra=332.90481 (22:11:37.15) dec=32.73831 (+32:44:17.9) +/- 0.6" mag=18.39+/-0.15
dist=32.2 REFID=9 major=4.4 minor=2.3 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 41.6 arc sec from the BAT position.
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
332.9031 32.7351 12.6 -1 USNO-B1 20.48 19.29 19.82
332.9043 32.7426 15.7 -1 USNO-B1 13.08 12.27 12.63
332.9031 32.7350 13.1 -1 GSC2.3 18.82 21.27 19.01
332.9043 32.7426 15.7 -1 GSC2.3 12.29 13.05 12.52
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 4.4
-----------------
Entry 5 in the list of sources is a candidate afterglow for 1325580_g831 with genie
ra=332.90160 (22:11:36.38) dec=32.73887 (+32:44:19.9) +/- 0.6" mag=18.24+/-0.15
dist=27.3 REFID=8 major=4.4 minor=1.9 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 42.7 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
332.9031 32.7351 14.4 -1 USNO-B1 20.48 19.29 19.82
332.9043 32.7426 15.8 -1 USNO-B1 13.08 12.27 12.63
332.9031 32.7350 14.7 -1 GSC2.3 18.82 21.27 19.01
332.9043 32.7426 15.9 -1 GSC2.3 12.29 13.05 12.52
332.8983 32.7408 12.3 -1 GSC2.3 99.99 22.47 99.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 4.4
-----------------
Entry 8 in the list of sources is a candidate afterglow for 1325580_g831 with genie
ra=332.89934 (22:11:35.84) dec=32.74113 (+32:44:28.1) +/- 0.6" mag=18.43+/-0.15
dist=32.1 REFID=6 major=3.5 minor=2.8 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 51.5 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 15.9 -1 USNO-B1 13.08 12.27 12.63
332.8946 32.7446 18.9 -1 USNO-B1 14.80 13.54 14.10
332.9043 32.7426 16.1 -1 GSC2.3 12.29 13.05 12.52
332.8983 32.7408 3.4 -1 GSC2.3 99.99 22.47 99.99 *
332.8946 32.7444 18.7 -1 GSC2.3 13.51 14.86 13.78
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 9 in the list of sources is a candidate afterglow for 1325580_g831 with genie
ra=332.90808 (22:11:37.94) dec=32.74068 (+32:44:26.4) +/- 0.6" mag=17.39+/-0.14
dist=45.3 REFID=10 major=5.9 minor=2.2 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 52.6 arc sec from the BAT position.
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
332.9043 32.7426 13.5 -1 USNO-B1 13.08 12.27 12.63
332.9085 32.7433 9.7 -1 USNO-B1 20.06 20.16 20.12
332.9043 32.7426 13.4 -1 GSC2.3 12.29 13.05 12.52
332.9090 32.7436 10.8 -1 GSC2.3 19.30 99.99 99.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 5.9
-----------------
Entry 12 in the list of sources is a candidate afterglow for 1325580_g831 with genie
ra=332.89962 (22:11:35.91) dec=32.74487 (+32:44:41.5) +/- 0.6" mag=17.18+/-0.14
dist=45.4 REFID=5 major=7.6 minor=3.9 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 64.7 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 16.2 -1 USNO-B1 13.08 12.27 12.63
332.8946 32.7446 15.2 -1 USNO-B1 14.80 13.54 14.10
332.8953 32.7475 16.0 -1 USNO-B1 18.23 16.96 17.53
332.9043 32.7426 16.4 -1 GSC2.3 12.29 13.05 12.52
332.8983 32.7408 15.1 -1 GSC2.3 99.99 22.47 99.99
332.9043 32.7460 14.8 -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 15.7 -1 GSC2.3 17.21 18.48 17.60
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 7.6
-----------------
Entry 14 in the list of sources is a candidate afterglow for 1325580_g831 with genie
ra=332.90618 (22:11:37.48) dec=32.74598 (+32:44:45.5) +/- 0.6" mag=18.18+/-0.15
dist=56.4 REFID=7 major=3.0 minor=1.8 flag=19 (neighbor+blended+aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 69.5 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 13.3 -1 USNO-B1 13.08 12.27 12.63
332.9085 32.7433 11.8 -1 USNO-B1 20.06 20.16 20.12
332.9043 32.7426 13.3 -1 GSC2.3 12.29 13.05 12.52
332.9090 32.7436 12.1 -1 GSC2.3 19.30 99.99 99.99
332.9043 32.7460 5.7 -1 GSC2.3 20.50 22.57 99.99
332.9091 32.7495 15.4 -1 GSC2.3 20.10 99.99 99.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 3.0
-----------------
Entry 24 in the list of sources is a candidate afterglow for 1325580_g831 with genie
ra=332.93480 (22:11:44.35) dec=32.72921 (+32:43:45.2) +/- 0.6" mag=17.25+/-0.14
dist=116.0 REFID=17 major=1.0 minor=0.9 flag=19 (neighbor+blended+aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 99.7 arc sec from the BAT position.
This source is near the edge of image (0.981)
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 18.5 -1 USNO-B1 19.30 18.68 18.96
332.9347 32.7308 5.6 -1 USNO-B1 14.47 13.55 13.96
332.9288 32.7283 18.4 -1 GSC2.3 18.32 19.67 18.95
332.9347 32.7311 6.7 -1 GSC2.3 14.41 15.46 13.77
332.9348 32.7291 0.4 -1 GSC2.3 15.93 16.71 99.99 *
332.9382 32.7319 14.2 -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=332.89686 (22:11:35.25) dec=32.73247 (+32:43:56.9) +/- 0.6" mag=18.17+/-0.15 dist=0.5 REFID=15 flag=0
There are 38589.902 counts in the bkg source region of 5421.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 7.119 counts/pixel (5-sig UL in 4" is 20.28 mag) for 1325580_g831
There are 1122.9066 counts in the src source region of 49.000000 pixels.
Rate in src region with 4 arcsec radius is 22.916 counts/pixel for 1325580_g831
There are 8114.0039 counts in the cand_src_bkg source region of 1146.0000 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_g831
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 20.84, 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_771887742_250618d04h54m36s099029usUT_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(332.9095,32.7310,45")
fk5;-circle(332.90422439304,32.7275325574078,6")
fk5;-circle(332.8982454608,32.7285323916144,6")
fk5;-circle(332.89686186807,32.7324682111147,6")
fk5;-circle(332.909888055514,32.7300492451661,6")
fk5;-circle(332.904805103995,32.7383107427802,6")
fk5;-circle(332.901596756665,32.7388689017187,6")
fk5;-circle(332.912354232892,32.7179265764875,6")
fk5;-circle(332.899335791661,32.7411297193204,6")
fk5;-circle(332.908080598134,32.7406780903731,6")
fk5;-circle(332.904051135102,32.7425040786391,6")
Region file: 1325580_771887742_250618d04h54m36s099029usUT_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(332.89686186807,32.7324682111147,4")
Region file: 1325580_771887742_250618d04h54m36s099029usUT_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(332.89686186807,32.7324682111147,25")
fk5;-circle(332.89686186807,32.7324682111147,15")
fk5;-circle(332.90422439304,32.7275325574078,6")
fk5;-circle(332.8982454608,32.7285323916144,6")
fk5;-circle(332.901596756665,32.7388689017187,6")
image paragraph message for exposure 1 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 796 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 22:11:35.25 = 332.89686
DEC(J2000) = +32:43:56.9 = 32.73247
with a 90%-confidence error radius of about 0.62 arc sec. This position is 0.5
arc sec. from the center of the XRT error circle. The estimated magnitude is
18.17 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 250618d04h54m40s553874usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1325580
-expid=771887742 -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 771887742.63924 or about 2025:169:21:15:37 UT
Found 850 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 14% of the srclist region. Found 180 sources in
srclist catalog. Found 57 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
20.84 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?
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
List afterglow candidates for other finding charts.
771887896 950 WHITE 332.89706 32.73264 18.74/19.2 1.3 srclist Yes
771887896 950 WHITE 332.89678 32.73251 18.45/20.8 0.6 image Yes
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 32.73247
GRB_ERROR: 0.62
GRB_RA: 332.89686
IMAGE_START_TIME: 21:15:37
MAGNITUDE: 18.17
MAG_ERROR: 0.15
MESSAGE_TYPE: ACK
SOURCE: XRT