srclist overlap message for exposure 1 of trigger 885314
uvot_overlap.pl vrs. 2010-12-20b fem started at 190123d14h10m13s711117usUT
The observation of trigger 885314 started 2019-01-23T12:21:39.9
Examining file ./885314_g145_uvot_sky_srclist.fits
The exposure ID is 569938899
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (53.2204,45.4820) with a roll angle of 268.2
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 (53.2290,45.4840) with a radius of 3.000 arc min
This is 0.380 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 (53.2206,45.5253) with a radius of 0.038 arc min
This is 2.598 arc min from the center of the uvot region
The area of the XRT error circle is 0.005 sq. arc min
The UVOT/XRT overlap is 0.005 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 885314
find_uvot_ag.pl vrs. 2017-02-17 fem started at 190123d14h10m15s816877usUT
Observation start time is 2019-01-23T12:21:39.9
Examining file ./885314_g145_uvot_catalog_srclist.fits
The exposure ID is 569938899
The exposure is 125.138 sec.
The bin size is 2 pixels
The filter is WHITE
There are 150 detected source(s) for 885314_g145
Aspect correction adds -0.00030 degrees (-0.071 sec of time = -0.75 arc sec) to RA
Aspect correction adds 0.00072 degrees ( 2.60 arcsec) to Dec
Total aspect correction is 2.70 arcsec
Star catalogs centered at 53.2184 , 45.4892 with radius 6.65 arc min.
n_usno: 1311 n_gsc: 0
*** WARNING -- bright star catalog has 2 entries brighter than 12 mag
The brightest has mag 9.7843
RA DEC Mag Color
bright star 0: 53.16916 (03:32:40.60) 45.55798 (+45:33:28.7) 10.86 USNO-V
bright star 1: 53.16607 (03:32:39.86) 45.56561 (+45:33:56.2) 9.78 USNO-V
Mean distance difference (CAT_DELTA) for 137 matched entries is 0.827" for 885314_g145
Mean and std. dev of mag. difference (MAG_DELTA) are 1.944 and 0.428 for 885314_g145
Found 16 entries without IDs and 6 entries that are acceptable afterglow candidates for 885314_g145.
Acceptable entries have no ID, XRT distances < 5.75", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
7 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=53.2290 (03:32:54.96) DEC=45.4840 (+45:29:02.4)
XRT distances are from RA=53.2206 (03:32:52.94) DEC=45.5253 (+45:31:31.1)
-----------------
Entry 1 in the list of sources is a candidate afterglow for 885314_g145 with 1x1 stamp
ra=53.22720 (03:32:54.53) dec=45.52452 (+45:31:28.3) +/- 1.1" mag=19.51+/-0.35
dist=16.9 REFID=140
*** The position of this source is inconsistent with the XRT position.
The position is 145.9 arc sec from the BAT position.
src: 1 distr. of nearby unmatched sources: 0 0 0 0 0
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
53.2263 45.5247 2.4 -1 USNO-B1 17.84 16.65 17.18 *
53.2332 45.5267 16.9 -1 USNO-B1 99.99 20.27 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 9 in the list of sources is a candidate afterglow for 885314_g145 with 3x3 stamp
ra=53.24558 (03:32:58.94) dec=45.53427 (+45:32:03.4) +/- 1.1" mag=19.60+/-0.35
dist=70.8 REFID=122
*** The position of this source is inconsistent with the XRT position.
The position is 185.7 arc sec from the BAT position.
src: 9 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
53.2436 45.5308 13.5 -1 USNO-B1 21.06 19.10 19.97
53.2499 45.5299 19.1 -1 USNO-B1 21.02 20.63 20.81
53.2434 45.5342 5.6 -1 USNO-B1 14.50 13.66 14.03
53.2498 45.5324 12.6 -1 USNO-B1 21.53 19.30 20.29
53.2496 45.5361 12.2 -1 USNO-B1 20.02 19.10 19.51
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 28 in the list of sources is a candidate afterglow for 885314_g145 with 1x1 stamp
ra=53.22657 (03:32:54.38) dec=45.49736 (+45:29:50.5) +/- 1.1" mag=19.51+/-0.35
dist=101.7 REFID=150
*** The position of this source is inconsistent with the XRT position.
The position is 48.5 arc sec from the BAT position.
src: 28 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
53.2227 45.4980 10.0 -1 USNO-B1 17.59 15.93 16.67
53.2259 45.4970 2.1 -1 USNO-B1 17.39 16.25 16.76 *
53.2272 45.4984 4.2 -1 USNO-B1 19.63 17.32 18.34
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 35 in the list of sources is a candidate afterglow for 885314_g145 with 1x1 stamp
ra=53.17690 (03:32:42.46) dec=45.52251 (+45:31:21.0) +/- 1.1" mag=19.51+/-0.35
dist=110.6 REFID=147
*** The position of this source is inconsistent with the XRT position.
The position is 191.1 arc sec from the BAT position.
src: 35 distr. of nearby unmatched sources: 0 0 0 0 0
Found 14 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
53.1803 45.5197 13.5 -1 USNO-B1 21.00 19.38 20.10
53.1794 45.5205 9.6 -1 USNO-B1 20.27 19.10 19.62
53.1800 45.5211 9.5 -1 USNO-B1 20.48 19.65 20.02
53.1789 45.5211 7.1 -1 USNO-B1 20.68 18.62 19.53
53.1817 45.5231 12.4 -1 USNO-B1 19.89 17.48 18.55
53.1733 45.5181 18.4 -1 USNO-B1 20.71 19.23 19.89
53.1786 45.5227 4.4 -1 USNO-B1 19.80 18.65 19.16
53.1827 45.5249 17.0 -1 USNO-B1 16.64 13.55 14.92
53.1779 45.5223 2.6 -1 USNO-B1 17.48 15.96 16.64 *
53.1800 45.5236 8.8 -1 USNO-B1 19.59 17.89 18.65
53.1781 45.5226 3.1 -1 USNO-B1 18.19 99.99 99.99 *
53.1793 45.5233 6.7 -1 USNO-B1 99.99 18.49 99.99
53.1821 45.5248 15.6 -1 USNO-B1 16.45 15.03 15.66
53.1702 45.5223 16.9 -1 USNO-B1 18.75 17.36 17.97
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 53 in the list of sources is a candidate afterglow for 885314_g145 with 3x3 stamp
ra=53.28439 (03:33:08.25) dec=45.50907 (+45:30:32.6) +/- 1.1" mag=16.98+/-0.35
dist=171.3 REFID=63
*** The position of this source is inconsistent with the XRT position.
The position is 166.4 arc sec from the BAT position.
src: 53 distr. of nearby unmatched sources: 1 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
53.2845 45.5072 6.6 -1 USNO-B1 16.45 99.99 99.99
53.2839 45.5086 2.0 -1 USNO-B1 14.88 13.09 13.89 *
53.2881 45.5048 17.9 -1 USNO-B1 20.92 19.73 20.26
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 55 in the list of sources is a candidate afterglow for 885314_g145 with 3x3 stamp
ra=53.28475 (03:33:08.34) dec=45.50926 (+45:30:33.3) +/- 1.1" mag=18.15+/-0.35
dist=171.9 REFID=78
*** The position of this source is inconsistent with the XRT position.
The position is 167.5 arc sec from the BAT position.
src: 55 distr. of nearby unmatched sources: 1 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
53.2845 45.5072 7.3 -1 USNO-B1 16.45 99.99 99.99
53.2839 45.5086 3.1 -1 USNO-B1 14.88 13.09 13.89 *
53.2881 45.5048 18.0 -1 USNO-B1 20.92 19.73 20.26
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Found 2 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
53.2178 45.5243 7.9 -1 USNO-B1 20.18 18.92 19.48
53.2171 45.5251 8.8 -1 USNO-B1 20.15 19.58 19.83
The closest star is 7.93" away.
List UVOT sources within 10" of the XRT position:
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.12, XRT distances < 5.75",
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 885314
------ Start for Possible Stand-alone Circular ----
In response to GRB190123 (Swift/BAT trigger 885314) at 12:19:13 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 125 seconds with the White filter
starting 124 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
0.44.
------- notes for trigger 885314 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 190123d14h10m21s693561usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=885314
-expid=569938899 -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/885314/
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 569938899.85684 or about 2019:023:12:21:34 UT
Found 1307 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 20% of the srclist region. Found 150 sources in
srclist catalog. Found 16 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
19.12 mag.
Found 29 source(s) in Genie image catalog. Found 0 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 20.51 mag. Found 233 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 50399.3 counts in the large background region of 5528.0 pixels or a rate
of 9.117 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 19.95 mag. for a
4-arcsec aperture.
Found 1890.7 counts in the XRT position region of 198.0 pixels or a rate of
9.549 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is 0.993 +/- 0.378 (1-sigma) cps or
19.79 mag and a range from 19.44 to 20.31 mag. The 3-sigma UL at the XRT
position is 2.127 cps or 18.96 mag. The closest srclist source has ra= 53.2263
dec= 45.5245 mag=19.31 sep=14.67". The closest Genie source has ra= 53.2262
dec= 45.5248 mag=18.23 sep=14.39".
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?
569938899 123 WHITE srclist found no candidates.
569938899 123 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 45.52531
GRB_ERROR: 5.75
GRB_RA: 53.22058
IMAGE_START_TIME: 12:21:34
MAGNITUDE: 19.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT