srclist overlap message for exposure 1 of trigger 1082569
uvot_overlap.pl vrs. 2010-12-20b fem started at 211105d10h43m59s300020usUT
The observation of trigger 1082569 started 2021-11-05T10:29:03.1
Examining file 1082569_g99_uvot_sky_srclist.fits
The exposure ID is 657800943
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (271.0717,41.3918) with a roll angle of 230.5
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 (271.0770,41.3990) with a radius of 3.000 arc min
This is 0.496 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
Could not find the location of an XRT error circle
srclist afterglow message for exposure 1 of trigger 1082569
find_uvot_ag.pl vrs. 2020-10-30 fem started at 211105d10h44m01s555761usUT
Observation start time is 2021-11-05T10:29:03.1
Examining file 1082569_g99_uvot_catalog_srclist.fits
The exposure ID is 657800943
The exposure is 150.000 sec.
The bin size is 2 pixels
The filter is WHITE
There are 64 detected source(s) for 1082569_g99
Aspect correction adds -0.00216 degrees (-0.520 sec of time = -5.85 arc sec) to RA
Aspect correction adds 0.00061 degrees ( 2.19 arcsec) to Dec
Total aspect correction is 6.25 arcsec
Star catalogs centered at 271.0678 , 41.3907 with radius 6.09 arc min.
n_usno: 654 n_gsc: 0
*** WARNING -- bright star catalog has 3 entries brighter than 12 mag
The brightest has mag 8.43132
RA DEC Mag Color
bright star 0: 271.12054 (18:04:28.93) 41.39776 (+41:23:51.9) 11.66 USNO-V
bright star 1: 270.97243 (18:03:53.38) 41.38299 (+41:22:58.8) 10.59 USNO-V
bright star 2: 270.96280 (18:03:51.07) 41.36483 (+41:21:53.4) 8.43 USNO-V
*** WARNING -- no XRT distances are available.
Mean distance difference (CAT_DELTA) for 54 matched entries is 0.708" for 1082569_g99
Mean and std. dev of mag. difference (MAG_DELTA) are 1.589 and 0.324 for 1082569_g99
Found 10 entries without IDs and 6 entries that are acceptable afterglow candidates for 1082569_g99.
Acceptable entries have no ID, BAT distance < 200" or XRT distance < 10", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
2 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=271.0770 (18:04:18.48) DEC=41.3990 (+41:23:56.4)
XRT distances are as reported in catalog file.
-----------------
Entry 8 in the list of sources is a candidate afterglow for 1082569_g99 with 3x3 stamp
ra=271.11981 (18:04:28.75) dec=41.40317 (+41:24:11.4) +/- 1.1" mag=20.00+/-0.35
dist=116.6 REFID=63
src: 8 distr. of nearby unmatched sources: 0 0 0 1 3
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
271.1205 41.3978 19.6 -1 USNO-B1 11.95 11.43 11.66 *
271.1251 41.4031 14.3 -1 USNO-B1 20.62 19.37 19.92
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 21 in the list of sources is a candidate afterglow for 1082569_g99 with 3x3 stamp
ra=271.13345 (18:04:32.03) dec=41.40010 (+41:24:00.3) +/- 1.1" mag=19.38+/-0.35
dist=152.5 REFID=49
src: 21 distr. of nearby unmatched sources: 0 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
271.1325 41.3996 3.1 -1 USNO-B1 15.80 14.47 15.06 *
271.1313 41.4044 16.5 -1 USNO-B1 19.32 17.62 18.37
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 23 in the list of sources is a candidate afterglow for 1082569_g99 with 3x3 stamp
ra=271.01673 (18:04:04.01) dec=41.41058 (+41:24:38.1) +/- 1.1" mag=19.42+/-0.35
dist=168.0 REFID=56
src: 23 distr. of nearby unmatched sources: 0 0 0 0 0
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
271.0157 41.4103 3.0 -1 USNO-B1 16.00 15.02 15.46 *
271.0119 41.4096 13.3 -1 USNO-B1 20.20 19.76 19.96
271.0117 41.4094 14.3 -1 USNO-B1 20.76 18.99 19.77
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 28 in the list of sources is a candidate afterglow for 1082569_g99 with 5x5 stamp
ra=271.12046 (18:04:28.91) dec=41.36029 (+41:21:37.0) +/- 1.1" mag=18.79+/-0.35
dist=182.3 REFID=33
src: 28 distr. of nearby unmatched sources: 0 0 1 0 0
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
271.1225 41.3635 12.7 -1 USNO-B1 18.52 17.29 17.84
271.1197 41.3599 2.4 -1 USNO-B1 16.29 15.29 15.73 *
271.1254 41.3580 15.6 -1 USNO-B1 20.38 18.52 19.34
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 29 in the list of sources is a candidate afterglow for 1082569_g99 with 3x3 stamp
ra=271.01850 (18:04:04.44) dec=41.42441 (+41:25:27.9) +/- 1.1" mag=19.96+/-0.35
dist=182.5 REFID=64
src: 29 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
271.0244 41.4229 16.8 -1 USNO-B1 20.84 19.00 19.81
271.0243 41.4243 15.7 -1 USNO-B1 20.48 18.32 19.28
271.0181 41.4217 9.9 -1 USNO-B1 19.79 19.10 19.41
271.0147 41.4199 19.1 -1 USNO-B1 20.43 19.13 19.70
271.0187 41.4237 2.7 -1 USNO-B1 18.27 16.88 17.50 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 34 in the list of sources is a candidate afterglow for 1082569_g99 with 3x3 stamp
ra=271.11125 (18:04:26.70) dec=41.35122 (+41:21:04.4) +/- 1.1" mag=19.15+/-0.35
dist=195.3 REFID=54
src: 34 distr. of nearby unmatched sources: 0 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
271.1133 41.3562 18.7 -1 USNO-B1 20.62 20.15 20.36
271.1101 41.3507 3.5 -1 USNO-B1 15.07 13.84 14.39 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 18.66, BAT distances < 200",
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 1082569
------ Start for Possible Stand-alone Circular ----
In response to GRB211105 (Swift/BAT trigger 1082569) at 10:27:23 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 71 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 BAT 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 0.031.
------- notes for trigger 1082569 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 211105d10h44m03s665473usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1082569
-expid=657800943 -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/1082569/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
*** Warning -- no exposure found, using srclist assumed value.
No XRT position found for srclist. BAT position found.
UVOT exposure began at MET 657800943.14592 or about 2021:309:10:28:58 UT
Found 650 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 12% of the srclist region. Found 64 sources in
srclist catalog. Found 10 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
18.66 mag.
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?
657800943 71 WHITE srclist found no candidates.
657800943 71 ? image data are not available.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: 41.39900
GRB_ERROR: 200
GRB_RA: 271.07700
IMAGE_START_TIME: 10:28:58
MAGNITUDE: 18.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: BAT