image overlap message for exposure 1 of trigger 1329888
uvot_overlap.pl vrs. 2010-12-20b fem started at 250703d00h09m35s774375usUT
The observation of trigger 1329888 started 2025-07-02T21:08:56.6
Examining file ./1329888_g132_uvot_sky_image.fits
The exposure ID is 773183336
The exposure time is 149.857 (seconds)
The filter is WHITE.
The uvot region is centered at (212.9302,16.7493) with a roll angle of 298.5
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 (212.9330,16.6990) with a radius of 3.000 arc min
This is 3.025 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 3.05 sq. arc min or 0.11 of the BAT error circle
The XRT error circle is centered at (212.9358,16.7491) with a radius of 0.037 arc min
This is 0.325 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
image afterglow message for exposure 1 of trigger 1329888
find_uvot_ag.pl vrs. 2023-04-25a fem started at 250703d00h09m38s669479usUT
Observation start time is 2025-07-02T21:08:56.6
Examining file ./1329888_g132_uvot_catalog_image.fits
The exposure ID is 773183336
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 3 detected source(s) for 1329888_g132
Aspect correction adds -0.00088 degrees (-0.211 sec of time = -3.03 arc sec) to RA
Aspect correction adds 0.00096 degrees ( 3.47 arcsec) to Dec
Total aspect correction is 4.61 arcsec
Star catalogs centered at 212.9382 , 16.7539 with radius 2.38 arc min.
n_usno: 39 n_gsc: 32
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 2 matched entries is 0.400" for 1329888_g132
Mean and std. dev of mag. difference (MAG_DELTA) are 0.633 and 0.258 for 1329888_g132
Found 1 entries without IDs and 1 entries that are acceptable afterglow candidates for 1329888_g132.
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=212.9330 (14:11:43.92) DEC=16.6990 (+16:41:56.4)
XRT distances are from RA=212.9358 (14:11:44.60) DEC=16.7491 (+16:44:56.7)
*** WARNING 33 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1329888_g132 with genie
ra=212.93622 (14:11:44.69) dec=16.74861 (+16:44:55.0) +/- 0.7" mag=15.85+/-0.14
dist=2.2 REFID=3 major=1.0 minor=0.9 flag=0
Found 2 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
212.9413 16.7494 17.7 -1 USNO-B1 20.25 19.05 19.59
212.9412 16.7493 17.5 -1 GSC2.3 18.86 20.60 19.08
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
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=212.93622 (14:11:44.69) dec=16.74861 (+16:44:55.0) +/- 0.7" mag=15.85+/-0.14 dist=2.2 REFID=3 flag=0
There are 43729.707 counts in the bkg source region of 6183.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 7.073 counts/pixel (5-sig UL in 4" is 20.29 mag) for 1329888_g132
There are 5603.1636 counts in the src source region of 49.000000 pixels.
Rate in src region with 4 arcsec radius is 114.350 counts/pixel for 1329888_g132
There are 9225.4229 counts in the cand_src_bkg source region of 1250.0000 pixels.
Rate in cand_src_bkg region from 15 to 25 arcsec is 7.380 counts/pixel (5-sig UL in 4" is 20.26 mag) for 1329888_g132
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 < 5.5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 1 good candidate(s) found.
Region file: 1329888_773183336_250703d00h09m38s669479usUT_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(212.9302,16.7493,45")
fk5;-circle(212.936222337249,16.7486083933276,6")
fk5;-circle(212.920599926246,16.7393950004211,6")
Region file: 1329888_773183336_250703d00h09m38s669479usUT_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(212.936222337249,16.7486083933276,4")
Region file: 1329888_773183336_250703d00h09m38s669479usUT_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(212.936222337249,16.7486083933276,25")
fk5;-circle(212.936222337249,16.7486083933276,15")
image paragraph message for exposure 1 of trigger 1329888
------ Start for Possible Stand-alone Circular ----
In response to GRB250702 (Swift/BAT trigger 1329888) at 21:06:43 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 97 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 14:11:44.69 = 212.93622
DEC(J2000) = +16:44:55.0 = 16.74861
with a 90%-confidence error radius of about 0.74 arc sec. This position is 2.2
arc sec. from the center of the XRT error circle. The estimated magnitude is
15.85 with a 1-sigma error of about 0.14. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.017.
------- notes for trigger 1329888 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 250703d00h09m43s442483usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1329888
-expid=773183336 -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/1329888/
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 773183336.55876 or about 2025:184:21:08:51 UT
Found 304 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 5% of the srclist region. Found 85 sources in
srclist catalog. Found 55 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 3 source(s) in Genie image catalog. 1 source(s) are within 10.0" of the
xrt position. Found 1 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 35 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 4% 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?
773183336 96 WHITE 212.93617 16.74852 16.33/19.2 2.3 srclist Yes
773183336 96 WHITE 212.93622 16.74861 15.85/20.8 2.2 image Yes
List afterglow candidates for other finding charts.
773183548 308 ? srclist data are not available.
773183548 308 U 212.93743 16.74750 15.02/20.6 1.2 image No
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 16.74861
GRB_ERROR: 0.74
GRB_RA: 212.93622
IMAGE_START_TIME: 21:08:51
MAGNITUDE: 15.85
MAG_ERROR: 0.14
MESSAGE_TYPE: ACK
SOURCE: XRT