srclist overlap message for exposure 1 of trigger 1150107
uvot_overlap.pl vrs. 2010-12-20b fem started at 230121d05h50m12s149437usUT
The observation of trigger 1150107 started 2023-01-21T05:46:51.5
Examining file 1150107_g153_uvot_sky_srclist.fits
The exposure ID is 695972811
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (70.2581,44.5247) with a roll angle of 281.6
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 (70.2670,44.5250) with a radius of 3.000 arc min
This is 0.381 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 (70.2493,44.5309) with a radius of 0.083 arc min
This is 0.531 arc min from the center of the uvot region
The area of the XRT error circle is 0.022 sq. arc min
The UVOT/XRT overlap is 0.022 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 1150107
find_uvot_ag.pl vrs. 2020-10-30 fem started at 230121d05h50m15s097663usUT
Observation start time is 2023-01-21T05:46:51.5
Examining file 1150107_g153_uvot_catalog_srclist.fits
The exposure ID is 695972811
The exposure is 150.000 sec.
The bin size is 2 pixels
The filter is WHITE
There are 121 detected source(s) for 1150107_g153
Aspect correction adds -0.00043 degrees (-0.102 sec of time = -1.09 arc sec) to RA
Aspect correction adds -0.00071 degrees (-2.56 arcsec) to Dec
Total aspect correction is 2.78 arcsec
Star catalogs centered at 70.2574 , 44.5173 with radius 6.28 arc min.
n_usno: 1050 n_gsc: 0
*** WARNING -- bright star catalog has 2 entries brighter than 12 mag
The brightest has mag 8.50646
RA DEC Mag Color
bright star 0: 70.24719 (04:40:59.33) 44.53037 (+44:31:49.3) 10.55 USNO-V
bright star 1: 70.39224 (04:41:34.14) 44.49659 (+44:29:47.7) 8.51 USNO-V
Mean distance difference (CAT_DELTA) for 95 matched entries is 0.654" for 1150107_g153
Mean and std. dev of mag. difference (MAG_DELTA) are 1.602 and 0.551 for 1150107_g153
Found 28 entries without IDs and 7 entries that are acceptable afterglow candidates for 1150107_g153.
Acceptable entries have no ID, XRT distances < 12.5", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
19 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=70.2670 (04:41:04.08) DEC=44.5250 (+44:31:30.0)
XRT distances are from RA=70.2493 (04:40:59.83) DEC=44.5309 (+44:31:51.2)
-----------------
Entry 31 in the list of sources is a candidate afterglow for 1150107_g153 with 3x3 stamp
ra=70.23251 (04:40:55.80) dec=44.50243 (+44:30:08.7) +/- 1.1" mag=18.93+/-0.35
dist=111.2 REFID=80
*** The position of this source is inconsistent with the XRT position.
The position is 122.1 arc sec from the BAT position.
src: 31 distr. of nearby unmatched sources: 0 1 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
70.2305 44.5075 18.9 -1 USNO-B1 20.36 18.43 19.28
70.2331 44.5013 4.3 -1 USNO-B1 15.60 13.55 14.46
70.2284 44.5035 11.4 -1 USNO-B1 20.01 18.34 19.08
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 33 in the list of sources is a candidate afterglow for 1150107_g153 with 3x3 stamp
ra=70.23288 (04:40:55.89) dec=44.50165 (+44:30:05.9) +/- 1.1" mag=17.11+/-0.35
dist=113.4 REFID=18
*** The position of this source is inconsistent with the XRT position.
The position is 123.3 arc sec from the BAT position.
src: 33 srclist_match has ID
src: 33 distr. of nearby unmatched sources: 2 0 0 0 0
Found 2 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
70.2331 44.5013 1.3 -1 USNO-B1 15.60 13.55 14.46 *
70.2284 44.5035 13.4 -1 USNO-B1 20.01 18.34 19.08
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 39 in the list of sources is a candidate afterglow for 1150107_g153 with 3x3 stamp
ra=70.23440 (04:40:56.26) dec=44.56540 (+44:33:55.4) +/- 1.1" mag=19.34+/-0.35
dist=129.9 REFID=112
*** The position of this source is inconsistent with the XRT position.
The position is 169.1 arc sec from the BAT position.
src: 39 distr. of nearby unmatched sources: 3 0 0 0 0
Found 2 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
70.2337 44.5633 7.8 -1 USNO-B1 17.79 15.82 16.69
70.2336 44.5655 2.1 -1 USNO-B1 17.09 14.49 15.64 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 42 in the list of sources is a candidate afterglow for 1150107_g153 with 3x3 stamp
ra=70.23416 (04:40:56.20) dec=44.56587 (+44:33:57.1) +/- 1.1" mag=18.80+/-0.35
dist=131.7 REFID=76
*** The position of this source is inconsistent with the XRT position.
The position is 170.8 arc sec from the BAT position.
src: 42 distr. of nearby unmatched sources: 3 0 0 0 0
Found 2 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
70.2337 44.5633 9.4 -1 USNO-B1 17.79 15.82 16.69
70.2336 44.5655 2.1 -1 USNO-B1 17.09 14.49 15.64 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 44 in the list of sources is a candidate afterglow for 1150107_g153 with 3x3 stamp
ra=70.23282 (04:40:55.88) dec=44.56584 (+44:33:57.0) +/- 1.1" mag=19.57+/-0.35
dist=132.7 REFID=102
*** The position of this source is inconsistent with the XRT position.
The position is 172.5 arc sec from the BAT position.
src: 44 distr. of nearby unmatched sources: 3 0 0 0 0
Found 2 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
70.2337 44.5633 9.5 -1 USNO-B1 17.79 15.82 16.69
70.2336 44.5655 2.4 -1 USNO-B1 17.09 14.49 15.64 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 45 in the list of sources is a candidate afterglow for 1150107_g153 with 3x3 stamp
ra=70.23296 (04:40:55.91) dec=44.56618 (+44:33:58.3) +/- 1.1" mag=20.22+/-0.35
dist=133.8 REFID=121
*** The position of this source is inconsistent with the XRT position.
The position is 173.4 arc sec from the BAT position.
src: 45 distr. of nearby unmatched sources: 3 0 0 0 0
Found 2 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
70.2337 44.5633 10.6 -1 USNO-B1 17.79 15.82 16.69
70.2336 44.5655 3.0 -1 USNO-B1 17.09 14.49 15.64 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 47 in the list of sources is a candidate afterglow for 1150107_g153 with 3x3 stamp
ra=70.29562 (04:41:10.95) dec=44.55039 (+44:33:01.4) +/- 1.1" mag=20.07+/-0.35
dist=138.0 REFID=120
*** The position of this source is inconsistent with the XRT position.
The position is 115.7 arc sec from the BAT position.
src: 47 distr. of nearby unmatched sources: 0 0 0 0 0
Found 1 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
70.3016 44.5487 16.6 -1 USNO-B1 21.46 20.35 20.84
*** If XRT position is correct, then this is NOT the afterglow
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
70.2472 44.5304 5.7 -1 USNO-B1 10.98 10.20 10.55
The closest star is 5.73" away.
List UVOT sources within 10" of the XRT position:
Unmatched source ra=70.24838 (04:40:59.61) dec=44.53157 (+44:31:53.7) +/- 1.1" mag=18.45+/-0.35 dist=3.4 REFID=85
Unmatched source ra=70.24847 (04:40:59.63) dec=44.53037 (+44:31:49.3) +/- 1.1" mag=19.22+/-0.35 dist=2.9 REFID=106
Unmatched source ra=70.24737 (04:40:59.37) dec=44.53096 (+44:31:51.5) +/- 1.1" mag=16.04+/-0.35 dist=5.0 REFID=9
Unmatched source ra=70.24748 (04:40:59.39) dec=44.53187 (+44:31:54.7) +/- 1.1" mag=16.97+/-0.35 dist=5.8 REFID=74
Unmatched source ra=70.24741 (04:40:59.38) dec=44.53224 (+44:31:56.1) +/- 1.1" mag=18.18+/-0.35 dist=6.8 REFID=118
Unmatched source ra=70.24642 (04:40:59.14) dec=44.53101 (+44:31:51.6) +/- 1.1" mag=15.24+/-0.35 dist=7.4 REFID=16
Unmatched source ra=70.24630 (04:40:59.11) dec=44.53169 (+44:31:54.1) +/- 1.1" mag=19.46+/-0.35 dist=8.2 REFID=108
Unmatched source ra=70.25002 (04:41:00.00) dec=44.53350 (+44:32:00.6) +/- 1.1" mag=19.15+/-0.35 dist=9.5 REFID=82
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.22, XRT distances < 12.5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: /Home/eud/uvot_tdrss/swift/uvot_gcn/src_1150107_XRT.reg
# Region file format: DS9 version 3.0
# find_uvot_ag.pl vrs. 2020-10-30 fem XRT
global font="helvetica 12 bold" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source=1
fk5;circle(70.2493,+44.5309,5.0") # color=red dash=0
point(70.24887,44.53019) # point=diamond 10 color=red width=2
srclist paragraph message for exposure 1 of trigger 1150107
WARNING -- because of the LARGE EXTINCTION, results should be used cautiously.
------ Start for Possible Stand-alone Circular ----
In response to GRB230121 (Swift/BAT trigger 1150107) at 05:44:17 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of nominal 150.000 seconds with the White
filter starting 123 seconds after the BAT trigger. No credible afterglow
candidate has been found in the initial data products. Data from the 2.7'x2.7'
sub-image are not available at this time. 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 1150107 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 230121d05h50m17s098901usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1150107
-expid=695972811 -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/1150107/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
Unreliable extinction found for bat position. Unreliable extinction found for
xrt position.
*** Warning -- no exposure found, using srclist assumed value.
XRT position found for srclist. BAT position found.
UVOT exposure began at MET 695972811.50868 or about 2023:021:05:46:46 UT
Found 1046 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 18% of the srclist region. Found 121 sources in
srclist catalog. Found 28 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 8 srclist source(s) within 10.0" of the XRT position.
The brightest such source has ra= 70.2485 dec= 44.5304 mag=19.22 sep=2.86".
The closest srclist source has ra= 70.2485 dec= 44.5304 mag=19.22 sep=2.86".
Report rejected UVOT sources within 10 arcsec XRT position.
Such sources are usually NOT the afterglow.
****THIS SOURCE NEAR XRT POSITION WAS REJECTED--USE WITH CAUTION****
UVOT took a finding chart exposure of nominal 150.000 seconds with the White
filter starting 123 seconds after the BAT trigger. There is a candidate
afterglow in the list of sources generated on-board at
RA(J2000) = 04:40:59.63 = 70.24847
DEC(J2000) = +44:31:49.3 = 44.53037
with a 90%-confidence error radius of about 1.10 arc sec. This position is 2.86
arc sec. from the center of the XRT error circle. The estimated magnitude is
19.22 with a 1-sigma error of about 0.35. No correction has been made for the
large, but uncertain, extinction expected.
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?
695972811 123 WHITE srclist found no candidates.
695972811 123 ? image data are not available.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: 44.53090
GRB_ERROR: 12.5
GRB_RA: 70.24930
IMAGE_START_TIME: 05:46:46
MAGNITUDE: 18.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT