image overlap message for exposure 1 of trigger 1167973
uvot_overlap.pl vrs. 2010-12-20b fem started at 230510d19h03m46s219470usUT
The observation of trigger 1167973 started 2023-05-10T12:08:11.9
Examining file ./1167973_g102_uvot_sky_image.fits
The exposure ID is 705413291
The exposure time is 149.857 (seconds)
The filter is WHITE.
The uvot region is centered at (318.1399,34.4440) with a roll angle of 75.8
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 (318.1560,34.4430) with a radius of 3.000 arc min
This is 0.801 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 (318.1367,34.4431) with a radius of 0.037 arc min
This is 0.166 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 1167973
find_uvot_ag.pl vrs. 2023-04-25a fem started at 230510d19h03m57s454227usUT
Observation start time is 2023-05-10T12:08:11.9
Examining file ./1167973_g102_uvot_catalog_image.fits
The exposure ID is 705413291
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 49 detected source(s) for 1167973_g102
Aspect correction adds 0.00149 degrees (0.358 sec of time = 4.43 arc sec) to RA
Aspect correction adds 0.00081 degrees ( 2.90 arcsec) to Dec
Total aspect correction is 5.30 arcsec
Star catalogs centered at 318.1406 , 34.4424 with radius 2.83 arc min.
n_usno: 319 n_gsc: 376
*** WARNING -- bright star catalog has 2 entries brighter than 12 mag
The brightest has mag 10.40886
RA DEC Mag Color
bright star 0: 318.18322 (21:12:43.97) 34.43211 (+34:25:55.6) 10.41 USNO-V
bright star 1: 318.16778 (21:12:40.27) 34.47492 (+34:28:29.7) 11.19 USNO-V
Mean distance difference (CAT_DELTA) for 49 matched entries is 0.478" for 1167973_g102
Mean and std. dev of mag. difference (MAG_DELTA) are 1.485 and 0.436 for 1167973_g102
Found 1 entries without IDs and 1 entries that are acceptable afterglow candidates for 1167973_g102.
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.
0 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=318.1560 (21:12:37.44) DEC=34.4430 (+34:26:34.8)
XRT distances are from RA=318.1367 (21:12:32.81) DEC=34.4431 (+34:26:35.0)
-----------------
Entry 3 in the list of sources is a candidate afterglow for 1167973_g102 with genie
ra=318.13703 (21:12:32.89) dec=34.44326 (+34:26:35.7) +/- 0.6" mag=19.11+/-0.16
dist=1.2 REFID=24 major=1.1 minor=0.9 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
318.1395 34.4460 12.2 -1 USNO-B1 17.28 15.91 16.52
318.1384 34.4456 9.2 -1 USNO-B1 17.93 16.49 17.13
318.1362 34.4402 11.5 -1 USNO-B1 18.66 17.28 17.89
318.1341 34.4405 13.3 -1 USNO-B1 16.57 15.11 15.76
318.1403 34.4415 11.6 -1 GSC2.3 19.82 21.60 99.99
318.1397 34.4460 12.6 -1 GSC2.3 16.82 18.11 17.02
318.1381 34.4454 8.4 -1 GSC2.3 17.29 18.85 17.95
318.1364 34.4401 11.5 -1 GSC2.3 17.96 19.31 18.09
318.1340 34.4404 13.6 -1 GSC2.3 15.68 16.91 15.97
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 1 entries in star catalog(s) within 10" of the XRT position.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
318.1381 34.4454 9.4 -1 GSC2.3 17.29 18.85 17.95
The closest star is 9.44" away.
List UVOT sources within 10" of the XRT position:
Unmatched source ra=318.13703 (21:12:32.89) dec=34.44326 (+34:26:35.7) +/- 0.6" mag=19.11+/-0.16 dist=1.2 REFID=24 flag=0
There are 65686.359 counts in the bkg source region of 4831.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 13.597 counts/pixel (5-sig UL in 4" is 19.93 mag) for 1167973_g102
There are 1011.4383 counts in the src source region of 50.000000 pixels.
Rate in src region with 4 arcsec radius is 20.229 counts/pixel for 1167973_g102
There are 12301.812 counts in the cand_src_bkg source region of 942.00000 pixels.
Rate in cand_src_bkg region from 15 to 25 arcsec is 13.059 counts/pixel (5-sig UL in 4" is 19.95 mag) for 1167973_g102
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 20.49, 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: 1167973_705413291_230510d19h03m57s454227usUT_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(318.1399,34.4440,45")
fk5;-circle(318.133946060062,34.4404714306703,6")
fk5;-circle(318.127637395857,34.4444177641696,6")
fk5;-circle(318.128063201406,34.4381463430467,6")
fk5;-circle(318.137032944904,34.443258264458,6")
fk5;-circle(318.131913505164,34.4495148909321,6")
fk5;-circle(318.139669736617,34.4459203880382,6")
fk5;-circle(318.136415013508,34.4489722695826,6")
fk5;-circle(318.130281476981,34.4333806987711,6")
fk5;-circle(318.136005816061,34.451476502618,6")
fk5;-circle(318.144685574833,34.4443526395121,6")
fk5;-circle(318.141154512859,34.4340474402839,6")
fk5;-circle(318.146989478883,34.4364340198247,6")
fk5;-circle(318.135482993278,34.4558350286133,6")
fk5;-circle(318.146148873183,34.4338631034959,6")
fk5;-circle(318.146045298842,34.4308192201212,6")
fk5;-circle(318.138903536818,34.4576306905205,6")
fk5;-circle(318.153319229872,34.4382603700397,6")
fk5;-circle(318.155924857155,34.4436471649857,6")
Region file: 1167973_705413291_230510d19h03m57s454227usUT_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(318.137032944904,34.443258264458,4")
Region file: 1167973_705413291_230510d19h03m57s454227usUT_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(318.137032944904,34.443258264458,25")
fk5;-circle(318.137032944904,34.443258264458,15")
fk5;-circle(318.133946060062,34.4404714306703,6")
fk5;-circle(318.127637395857,34.4444177641696,6")
fk5;-circle(318.131913505164,34.4495148909321,6")
fk5;-circle(318.139669736617,34.4459203880382,6")
fk5;-circle(318.136415013508,34.4489722695826,6")
fk5;-circle(318.136005816061,34.451476502618,6")
fk5;-circle(318.144685574833,34.4443526395121,6")
image paragraph message for exposure 1 of trigger 1167973
------ Start for Possible Stand-alone Circular ----
In response to GRB230510 (Swift/BAT trigger 1167973) at 12:06:28 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 72 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 21:12:32.89 = 318.13703
DEC(J2000) = +34:26:35.7 = 34.44326
with a 90%-confidence error radius of about 0.65 arc sec. This position is 1.2
arc sec. from the center of the XRT error circle. The estimated magnitude is
19.11 with a 1-sigma error of about 0.16. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.144.
------- notes for trigger 1167973 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 230510d19h04m04s771970usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1167973
-expid=705413291 -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/1167973/
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 705413291.8528 or about 2023:130:12:08:06 UT
Found 1943 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 31% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. 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 49 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
20.49 mag. Found 376 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 32% of the Genie image region. The
closest srclist source has ra= 318.1340 dec= 34.4405 mag=17.44 sep=12.14".
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?
705413291 71 WHITE srclist found no candidates.
705413291 71 WHITE 318.13703 34.44326 19.11/20.5 1.2 image Yes
List afterglow candidates for other finding charts.
705413503 283 ? srclist data are not available.
705413503 283 U image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 34.44326
GRB_ERROR: 0.65
GRB_RA: 318.13703
IMAGE_START_TIME: 12:08:06
MAGNITUDE: 19.11
MAG_ERROR: 0.16
MESSAGE_TYPE: ACK
SOURCE: XRT