srclist overlap message for exposure 1 of trigger 1118357
uvot_overlap.pl vrs. 2010-12-20b fem started at 220801d14h09m50s322302usUT
The observation of trigger 1118357 started 2022-07-30T15:51:16.0
Examining file ./1118357_g141_uvot_sky_srclist.fits
The exposure ID is 680889076
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (224.9979,-69.4979) with a roll angle of 271.9
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 (225.0210,-69.4970) with a radius of 3.000 arc min
This is 0.488 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 (225.0143,-69.4959) with a radius of 0.110 arc min
This is 0.364 arc min from the center of the uvot region
The area of the XRT error circle is 0.038 sq. arc min
The UVOT/XRT overlap is 0.038 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 1118357
find_uvot_ag.pl vrs. 2020-10-30 fem started at 220801d14h09m51s923248usUT
Observation start time is 2022-07-30T15:51:16.0
Examining file ./1118357_g141_uvot_catalog_srclist.fits
The exposure ID is 680889076
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 190 detected source(s) for 1118357_g141
*** WARNING -- the sources have filled the available telemetry buffer (190).
srclist_overlap returned: bat_overlap 0.911
srclist_overlap returned: xrt_overlap 1.000
Dimmest detected source in 1118357_g141 has mag 18.88
Aspect correction adds -0.00559 degrees (-1.342 sec of time = -7.06 arc sec) to RA
Aspect correction adds 0.00051 degrees ( 1.85 arcsec) to Dec
Total aspect correction is 7.30 arcsec
Star catalogs centered at 224.9857 , -69.5110 with radius 6.10 arc min.
n_usno: 1985 n_gsc: 0
*** WARNING -- bright star catalog has 12 entries brighter than 12 mag
The brightest has mag 10.29934
RA DEC Mag Color
bright star 0: 224.90781 (14:59:37.87) -69.49775 (-69:29:51.9) 11.36 USNO-V
bright star 1: 225.08209 (15:00:19.70) -69.48644 (-69:29:11.2) 10.63 USNO-V
bright star 2: 224.87079 (14:59:28.99) -69.48717 (-69:29:13.8) 10.97 USNO-V
bright star 3: 224.79876 (14:59:11.70) -69.52824 (-69:31:41.6) 10.30 USNO-V
bright star 4: 224.79464 (14:59:10.71) -69.50017 (-69:30:00.6) 11.56 USNO-V
bright star 5: 224.80312 (14:59:12.75) -69.47232 (-69:28:20.4) 10.56 USNO-V
bright star 6: 224.73337 (14:58:56.01) -69.49943 (-69:29:57.9) 10.90 USNO-V
bright star 7: 224.77836 (14:59:06.81) -69.56298 (-69:33:46.7) 11.28 USNO-V
bright star 8: 224.88149 (14:59:31.56) -69.41885 (-69:25:07.9) 11.60 USNO-R
bright star 9: 224.83579 (14:59:20.59) -69.42654 (-69:25:35.6) 11.98 USNO-V
bright star 10: 224.83283 (14:59:19.88) -69.42649 (-69:25:35.4) 11.32 USNO-R
bright star 11: 224.87883 (14:59:30.92) -69.41720 (-69:25:01.9) 11.85 USNO-V
Mean distance difference (CAT_DELTA) for 185 matched entries is 0.763" for 1118357_g141
Mean and std. dev of mag. difference (MAG_DELTA) are 2.089 and 0.534 for 1118357_g141
Found 11 entries without IDs and 8 entries that are acceptable afterglow candidates for 1118357_g141.
Acceptable entries have no ID, XRT distances < 15", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
1 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=225.0210 (15:00:05.04) DEC=-69.4970 (-69:29:49.2)
XRT distances are from RA=225.0143 (15:00:03.43) DEC=-69.4959 (-69:29:45.4)
-----------------
Entry 7 in the list of sources is a candidate afterglow for 1118357_g141 with 3x3 stamp
ra=225.06096 (15:00:14.63) dec=-69.49536 (-69:29:43.3) +/- 1.1" mag=18.01+/-0.35
dist=58.9 REFID=96
*** The position of this source is inconsistent with the XRT position.
The position is 50.7 arc sec from the BAT position.
src: 7 distr. of nearby unmatched sources: 0 0 0 0 0
Found 12 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
225.0564 -69.4973 9.1 -1 USNO-B1 15.17 17.59 16.52
225.0586 -69.4975 8.3 -1 USNO-B1 17.67 17.01 17.30
225.0578 -69.4966 6.0 -1 USNO-B1 18.27 18.00 18.12
225.0601 -69.4979 9.1 -1 USNO-B1 17.50 17.56 17.53
225.0639 -69.4987 12.5 -1 USNO-B1 18.81 18.25 18.50
225.0633 -69.4949 3.4 -1 USNO-B1 15.07 14.37 14.68 *
225.0638 -69.4934 7.8 -1 USNO-B1 18.94 99.99 99.99
225.0654 -69.4941 7.2 -1 USNO-B1 18.03 14.47 16.05
225.0629 -69.4918 13.2 -1 USNO-B1 18.98 18.16 18.52
225.0622 -69.4912 15.0 -1 USNO-B1 18.04 17.73 17.87
225.0695 -69.4945 11.2 -1 USNO-B1 18.72 17.86 18.24
225.0732 -69.4966 16.1 -1 USNO-B1 17.24 16.69 16.93
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 25 in the list of sources is a candidate afterglow for 1118357_g141 with 1x1 stamp
ra=224.98077 (14:59:55.39) dec=-69.51341 (-69:30:48.3) +/- 1.1" mag=18.35+/-0.35
dist=75.8 REFID=148
*** The position of this source is inconsistent with the XRT position.
The position is 77.9 arc sec from the BAT position.
src: 25 srclist_match has ID
src: 25 distr. of nearby unmatched sources: 0 0 0 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
224.9863 -69.5115 9.9 -1 USNO-B1 14.72 14.48 14.59
224.9863 -69.5117 9.4 -1 USNO-B1 99.99 14.44 99.99
224.9813 -69.5132 1.1 -1 USNO-B1 16.56 15.62 16.03 *
224.9851 -69.5173 15.0 -1 USNO-B1 18.77 17.71 18.18
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 46 in the list of sources is a candidate afterglow for 1118357_g141 with 3x3 stamp
ra=224.95196 (14:59:48.47) dec=-69.47913 (-69:28:44.9) +/- 1.1" mag=17.54+/-0.35
dist=99.2 REFID=87
*** The position of this source is inconsistent with the XRT position.
The position is 108.3 arc sec from the BAT position.
src: 46 srclist_match has ID
src: 46 distr. of nearby unmatched sources: 0 0 0 0 0
Found 7 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
224.9500 -69.4825 12.2 -1 USNO-B1 16.92 16.13 16.48
224.9574 -69.4814 10.7 -1 USNO-B1 16.54 15.70 16.07
224.9479 -69.4825 13.0 -1 USNO-B1 16.82 16.20 16.47
224.9571 -69.4810 9.3 -1 USNO-B1 15.68 15.04 15.33
224.9567 -69.4804 7.5 -1 USNO-B1 16.47 14.93 15.61
224.9553 -69.4802 5.7 -1 USNO-B1 15.67 13.98 14.73
224.9532 -69.4791 1.5 -1 USNO-B1 16.06 14.90 15.42 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 51 in the list of sources is a candidate afterglow for 1118357_g141 with 1x1 stamp
ra=225.11170 (15:00:26.81) dec=-69.49731 (-69:29:50.3) +/- 1.1" mag=17.45+/-0.35
dist=122.9 REFID=190
*** The position of this source is inconsistent with the XRT position.
The position is 114.4 arc sec from the BAT position.
src: 51 distr. of nearby unmatched sources: 0 0 0 0 0
Found 7 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
225.1036 -69.4946 14.1 -1 USNO-B1 18.92 99.99 99.99
225.1128 -69.5027 19.3 -1 USNO-B1 18.91 17.84 18.32
225.1102 -69.4980 3.1 -1 USNO-B1 14.07 13.62 13.82 *
225.1208 -69.5014 18.8 -1 USNO-B1 17.90 99.99 99.99
225.1216 -69.5014 19.3 -1 USNO-B1 17.53 16.98 17.22
225.1167 -69.4930 16.8 -1 USNO-B1 19.69 18.94 19.27
225.1265 -69.4977 18.7 -1 USNO-B1 18.25 18.00 18.11
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 58 in the list of sources is a candidate afterglow for 1118357_g141 with 1x1 stamp
ra=225.01927 (15:00:04.62) dec=-69.46075 (-69:27:38.7) +/- 1.1" mag=18.29+/-0.35
dist=126.8 REFID=168
*** The position of this source is inconsistent with the XRT position.
The position is 130.5 arc sec from the BAT position.
src: 58 srclist_match has ID
src: 58 distr. of nearby unmatched sources: 0 0 0 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
225.0175 -69.4639 11.7 -1 USNO-B1 18.23 17.44 17.79
225.0145 -69.4608 6.1 -1 USNO-B1 16.63 15.64 16.08
225.0181 -69.4607 1.5 -1 USNO-B1 16.78 15.97 16.33 *
225.0320 -69.4612 16.2 -1 USNO-B1 16.80 16.09 16.41
225.0197 -69.4557 18.2 -1 USNO-B1 99.99 18.40 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 66 in the list of sources is a candidate afterglow for 1118357_g141 with 3x3 stamp
ra=224.98109 (14:59:55.46) dec=-69.53345 (-69:32:00.4) +/- 1.1" mag=16.18+/-0.35
dist=141.3 REFID=27
*** The position of this source is inconsistent with the XRT position.
The position is 140.5 arc sec from the BAT position.
src: 66 distr. of nearby unmatched sources: 1 1 0 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
224.9745 -69.5312 11.6 -1 USNO-B1 99.99 14.54 99.99
224.9932 -69.5318 16.4 -1 USNO-B1 99.99 18.77 99.99
224.9779 -69.5325 5.2 -1 USNO-B1 14.01 13.34 13.64
224.9796 -69.5331 2.2 -1 USNO-B1 99.99 13.67 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 67 in the list of sources is a candidate afterglow for 1118357_g141 with 3x3 stamp
ra=224.91401 (14:59:39.36) dec=-69.50896 (-69:30:32.2) +/- 1.1" mag=17.72+/-0.35
dist=134.8 REFID=98
*** The position of this source is inconsistent with the XRT position.
The position is 141.6 arc sec from the BAT position.
src: 67 distr. of nearby unmatched sources: 0 0 0 0 0
Found 7 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
224.9205 -69.5077 9.4 -1 USNO-B1 18.32 17.96 18.12
224.9168 -69.5139 18.1 -1 USNO-B1 17.50 17.25 17.36
224.9128 -69.5094 2.3 -1 USNO-B1 99.99 14.25 99.99 *
224.9133 -69.5064 9.1 -1 USNO-B1 19.37 18.68 18.99
224.9074 -69.5098 8.9 -1 USNO-B1 14.89 13.68 14.22
224.9024 -69.5093 14.7 -1 USNO-B1 99.99 15.97 99.99
224.8999 -69.5107 18.9 -1 USNO-B1 17.99 17.36 17.64
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 68 in the list of sources is a candidate afterglow for 1118357_g141 with 3x3 stamp
ra=225.09212 (15:00:22.11) dec=-69.52750 (-69:31:39.0) +/- 1.1" mag=16.24+/-0.35
dist=150.0 REFID=28
*** The position of this source is inconsistent with the XRT position.
The position is 141.7 arc sec from the BAT position.
src: 68 srclist_match has ID
src: 68 distr. of nearby unmatched sources: 0 0 1 0 0
Found 9 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
225.0800 -69.5252 17.3 -1 USNO-B1 99.99 15.41 99.99
225.0808 -69.5256 15.8 -1 USNO-B1 99.99 15.14 99.99
225.0839 -69.5267 10.7 -1 USNO-B1 12.95 13.14 13.06 *
225.0854 -69.5259 10.3 -1 USNO-B1 99.99 15.90 99.99
225.0843 -69.5274 9.8 -1 USNO-B1 12.63 13.28 12.99 *
225.0931 -69.5274 1.3 -1 USNO-B1 14.56 13.95 14.22 *
225.1016 -69.5254 14.2 -1 USNO-B1 18.62 17.77 18.15
225.1036 -69.5252 16.6 -1 USNO-B1 17.81 17.63 17.71
225.0990 -69.5310 15.4 -1 USNO-B1 16.91 16.00 16.40
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 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
225.0217 -69.4951 9.8 -1 USNO-B1 16.21 15.36 15.73
The closest star is 9.84" away.
List UVOT sources within 10" of the XRT position:
Matched source ra=225.02149 (15:00:05.16) dec=-69.49523 (-69:29:42.8) +/- 1.1" mag=17.41+/-0.35 dist=9.4 REFID=88
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 < 15",
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 1118357
SRCLIST PROBLEM: srclist filled telemetry buffer
1 source(s) near the XRT position were rejected as afterglow candidate(s). See
notes for details.
------ Start for Possible Stand-alone Circular ----
In response to GRB220730 (Swift/BAT trigger 1118357) at 15:48:54 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 111 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 expected extinction corresponding to E(B-V) of
0.161.
------- notes for trigger 1118357 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 220801d14h09m56s800854usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1118357
-expid=680889076 -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/1118357/
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 680889076.0109 or about 2022:211:15:51:11 UT
Found 1981 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 36% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 11 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 69 source(s) in Genie image catalog. 1 source(s) are within 10.0" of the
xrt position. 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
20.61 mag. Found 414 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 37% of the Genie image region.
Genie image analysis:
Found 48024.3 counts in the large background region of 4395.0 pixels or a rate
of 10.927 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 19.88 mag. for a
4-arcsec aperture.
Found 2251.0 counts in the XRT position region of 198.0 pixels or a rate of
11.369 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is 0.958 +/- 0.350 (1-sigma) cps or
19.65 mag and a range from 19.31 to 20.14 mag. The 3-sigma UL at the XRT
position is 2.008 cps or 18.85 mag. The number of srclist sources filled the
available telemetry. The weakest source detected was 18.88 mag.
Found 1 srclist source(s) within 10.0" of the XRT position.
The brightest such source has ra= 225.0215 dec= -69.4952 mag=17.41 sep=9.44".
The closest srclist source has ra= 225.0215 dec= -69.4952 mag=17.41 sep=9.44".
Found 1 Genie source(s) within 10.0" of the XRT position. The brightest such
source has ra= 225.0217 dec= -69.4951 mag=16.67 sep=9.78". The closest Genie
source has ra= 225.0217 dec= -69.4951 mag=16.67 sep=9.78".
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 150 seconds with the White filter
starting 111 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 15:00:05.21 = 225.02169
DEC(J2000) = -69:29:42.5 = -69.49513
with a 90%-confidence error radius of about 0.61 arc sec. This position is 9.78
arc sec. from the center of the XRT error circle. The estimated magnitude is
16.67 with a 1-sigma error of about 0.14. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.161.
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?
680889076 111 WHITE srclist found no candidates.
680889076 111 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: -69.49594
GRB_ERROR: 15
GRB_RA: 225.01429
IMAGE_START_TIME: 15:51:11
MAGNITUDE: 18.9
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT