srclist overlap message for exposure 1 of trigger 1104692
uvot_overlap.pl vrs. 2010-12-20b fem started at 220430d18h39m58s734988usUT
The observation of trigger 1104692 started 2022-04-30T13:54:45.2
Examining file ./1104692_g89_uvot_sky_srclist.fits
The exposure ID is 673019685
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (97.6043,9.5101) with a roll angle of 281.7
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 (97.6110,9.5100) with a radius of 3.000 arc min
This is 0.396 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 (97.6122,9.5475) with a radius of 0.033 arc min
This is 2.295 arc min from the center of the uvot region
The area of the XRT error circle is 0.003 sq. arc min
The UVOT/XRT overlap is 0.003 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 1104692
find_uvot_ag.pl vrs. 2020-10-30 fem started at 220430d18h40m04s328343usUT
Observation start time is 2022-04-30T13:54:45.2
Examining file ./1104692_g89_uvot_catalog_srclist.fits
The exposure ID is 673019685
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 170 detected source(s) for 1104692_g89
Aspect correction adds -0.00112 degrees (-0.268 sec of time = -3.96 arc sec) to RA
Aspect correction adds -0.00110 degrees (-3.94 arcsec) to Dec
Total aspect correction is 5.59 arcsec
Star catalogs centered at 97.6080 , 9.5185 with radius 6.44 arc min.
n_usno: 1338 n_gsc: 0
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.95464
RA DEC Mag Color
bright star 0: 97.61172 (06:30:26.81) 9.57456 (+09:34:28.4) 11.95 USNO-V
Mean distance difference (CAT_DELTA) for 162 matched entries is 0.850" for 1104692_g89
Mean and std. dev of mag. difference (MAG_DELTA) are 1.923 and 0.568 for 1104692_g89
Found 13 entries without IDs and 6 entries that are acceptable afterglow candidates for 1104692_g89.
Acceptable entries have no ID, XRT distances < 5", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
4 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=97.6110 (06:30:26.64) DEC= 9.5100 (+09:30:36.0)
XRT distances are from RA=97.6122 (06:30:26.92) DEC= 9.5475 (+09:32:51.1)
-----------------
Entry 46 in the list of sources is a candidate afterglow for 1104692_g89 with 1x1 stamp
ra=97.63816 (06:30:33.16) dec=9.52141 (+09:31:17.1) +/- 1.1" mag=19.03+/-0.35
dist=131.7 REFID=170
*** The position of this source is inconsistent with the XRT position.
The position is 104.8 arc sec from the BAT position.
src: 46 distr. of nearby unmatched sources: 0 0 0 0 0
Found 3 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
97.6336 9.5188 18.8 -1 USNO-B1 17.05 16.12 16.54
97.6379 9.5220 2.2 -1 USNO-B1 18.91 17.30 18.02 *
97.6379 9.5223 3.3 -1 USNO-B1 99.99 18.51 99.99 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 50 in the list of sources is a candidate afterglow for 1104692_g89 with 1x1 stamp
ra=97.64803 (06:30:35.53) dec=9.53000 (+09:31:48.0) +/- 1.1" mag=18.88+/-0.35
dist=142.1 REFID=157
*** The position of this source is inconsistent with the XRT position.
The position is 149.9 arc sec from the BAT position.
src: 50 distr. of nearby unmatched sources: 0 0 0 0 1
Found 3 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
97.6441 9.5310 14.5 -1 USNO-B1 20.38 18.95 19.59
97.6478 9.5291 3.4 -1 USNO-B1 15.66 14.72 15.14 *
97.6523 9.5332 19.1 -1 USNO-B1 13.79 12.46 13.05 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 60 in the list of sources is a candidate afterglow for 1104692_g89 with 1x1 stamp
ra=97.65321 (06:30:36.77) dec=9.53233 (+09:31:56.4) +/- 1.1" mag=18.79+/-0.35
dist=155.6 REFID=128
*** The position of this source is inconsistent with the XRT position.
The position is 170.1 arc sec from the BAT position.
src: 60 distr. of nearby unmatched sources: 0 0 0 0 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
97.6510 9.5351 12.7 -1 USNO-B1 99.99 18.43 99.99
97.6511 9.5347 11.3 -1 USNO-B1 19.08 18.10 18.54
97.6523 9.5332 4.5 -1 USNO-B1 13.79 12.46 13.05 *
97.6548 9.5326 5.9 -1 USNO-B1 16.37 15.34 15.80
97.6550 9.5326 6.6 -1 USNO-B1 99.99 15.85 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 122 in the list of sources is a candidate afterglow for 1104692_g89 with 1x1 stamp
ra=97.64365 (06:30:34.48) dec=9.47669 (+09:28:36.1) +/- 1.1" mag=18.70+/-0.35
dist=278.4 REFID=156
*** The position of this source is inconsistent with the XRT position.
The position is 166.8 arc sec from the BAT position.
src: 122 distr. of nearby unmatched sources: 0 1 1 0 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
97.6418 9.4814 18.1 -1 USNO-B1 19.12 17.71 18.34
97.6383 9.4779 19.5 -1 USNO-B1 20.30 19.33 19.76
97.6395 9.4770 14.9 -1 USNO-B1 17.88 17.44 17.64
97.6403 9.4769 11.9 -1 USNO-B1 17.72 17.58 17.64
97.6433 9.4758 3.5 -1 USNO-B1 12.50 11.96 12.20 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 123 in the list of sources is a candidate afterglow for 1104692_g89 with 1x1 stamp
ra=97.64551 (06:30:34.92) dec=9.47735 (+09:28:38.5) +/- 1.1" mag=18.98+/-0.35
dist=279.0 REFID=165
*** The position of this source is inconsistent with the XRT position.
The position is 169.8 arc sec from the BAT position.
src: 123 distr. of nearby unmatched sources: 0 1 1 0 0
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
97.6418 9.4814 19.6 -1 USNO-B1 19.12 17.71 18.34
97.6403 9.4769 18.6 -1 USNO-B1 17.72 17.58 17.64
97.6433 9.4758 9.8 -1 USNO-B1 12.50 11.96 12.20 *
97.6504 9.4756 18.5 -1 USNO-B1 20.12 18.60 19.27
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 130 in the list of sources is a candidate afterglow for 1104692_g89 with 1x1 stamp
ra=97.64552 (06:30:34.93) dec=9.47386 (+09:28:25.9) +/- 1.1" mag=19.09+/-0.35
dist=290.5 REFID=167
*** The position of this source is inconsistent with the XRT position.
The position is 178.8 arc sec from the BAT position.
src: 130 distr. of nearby unmatched sources: 0 0 2 0 0
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
97.6433 9.4758 10.6 -1 USNO-B1 12.50 11.96 12.20 *
97.6504 9.4756 18.5 -1 USNO-B1 20.12 18.60 19.27
97.6457 9.4707 11.2 -1 USNO-B1 20.05 19.52 19.76
97.6479 9.4706 14.2 -1 USNO-B1 19.93 19.22 19.54
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Found 3 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
97.6139 9.5465 7.1 -1 USNO-B1 20.71 19.07 19.80
97.6102 9.5486 7.9 -1 USNO-B1 19.57 19.85 19.73
97.6137 9.5484 6.4 -1 USNO-B1 20.77 19.38 19.99
The closest star is 6.38" away.
List UVOT sources within 10" of the XRT position:
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 19.22, XRT distances < 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 1104692
WARNING -- because of the LARGE EXTINCTION, results should be used cautiously.
------ Start for Possible Stand-alone Circular ----
In response to GRB220430 (Swift/BAT trigger 1104692) at 13:53:15 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 60 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 large, but uncertain, extinction expected.
------- notes for trigger 1104692 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 220430d18h40m10s405473usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1104692
-expid=673019685 -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/1104692/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
Unreliable extinction found for xrt position. XRT position found for srclist.
XRT position found for Genie image. BAT position found.
UVOT exposure began at MET 673019685.22358 or about 2022:120:13:54:40 UT
Found 1334 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 22% of the srclist region. Found 170 sources in
srclist catalog. Found 13 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 31 source(s) in Genie image catalog. Found 2 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 20.29 mag. Found 224 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
22% of the Genie image region.
Genie image analysis:
Found 106643.1 counts in the large background region of 5485.0 pixels or a rate
of 19.443 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 19.56 mag. for a
4-arcsec aperture.
Found 4129.4 counts in the XRT position region of 203.0 pixels or a rate of
20.342 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is 1.408 +/- 0.465 (1-sigma) cps or
19.23 mag and a range from 18.92 to 19.67 mag. The 3-sigma UL at the XRT
position is 2.804 cps or 18.49 mag. The closest srclist source has ra= 97.6151
dec= 9.5518 mag=16.76 sep=18.66". The closest Genie source has ra= 97.6149
dec= 9.5517 mag=16.00 sep=17.86".
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?
673019685 59 WHITE srclist found no candidates.
673019685 59 WHITE image found no candidates.
List afterglow candidates for other finding charts.
673019897 271 U srclist found no candidates.
673019897 271 U image found no candidates.
673020500 874 WHITE srclist found no candidates.
673020500 874 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 9.54753
GRB_ERROR: 5
GRB_RA: 97.61217
IMAGE_START_TIME: 13:54:40
MAGNITUDE: 18.5
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT