srclist overlap message for exposure 1 of trigger 960102
uvot_overlap.pl vrs. 2010-12-20b fem started at 200307d18h09m51s851722usUT
The observation of trigger 960102 started 2020-03-06T22:53:01.1
Examining file ./960102_g141_uvot_sky_srclist.fits
The exposure ID is 605227981
The exposure time is undefined.
The filter is U.
The uvot region is centered at (198.5844,11.2545) with a roll angle of 81.3
It is square with sides of 12.05 arc min. for an area of 145.15 sq arc min
The BAT error circle is centered at (198.5820,11.2550) with a radius of 3.000 arc min
This is 0.142 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 (198.5559,11.2695) with a radius of 0.037 arc min
This is 1.903 arc min from the center of the uvot region
The area of the XRT error circle is 0.004 sq. arc min
The UVOT/XRT overlap is 0.004 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 960102
find_uvot_ag.pl vrs. 2017-02-17 fem started at 200307d18h09m55s207727usUT
Observation start time is 2020-03-06T22:53:01.1
Examining file ./960102_g141_uvot_catalog_srclist.fits
The exposure ID is 605227981
The exposure is 249.924 sec.
The bin size is 2 pixels
The filter is U
There are 114 detected source(s) for 960102_g141
Aspect correction adds 0.00095 degrees (0.228 sec of time = 3.35 arc sec) to RA
Aspect correction adds -0.00010 degrees (-0.37 arcsec) to Dec
Total aspect correction is 3.37 arcsec
Star catalogs centered at 198.6010 , 11.2434 with radius 8.71 arc min.
n_usno: 482 n_gsc: 0
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 5.76626
RA DEC Mag Color
bright star 0: 198.63034 (13:14:31.28) 11.33166 (+11:19:54.0) 5.77 USNO-V
Mean distance difference (CAT_DELTA) for 27 matched entries is 0.829" for 960102_g141
Mean and std. dev of mag. difference (MAG_DELTA) are 2.041 and 2.086 for 960102_g141
Found 87 entries without IDs and 3 entries that are acceptable afterglow candidates for 960102_g141.
Acceptable entries have no ID, XRT distances < 5.5", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
74 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=198.5820 (13:14:19.68) DEC=11.2550 (+11:15:18.0)
XRT distances are from RA=198.5559 (13:14:13.41) DEC=11.2695 (+11:16:10.3)
*** WARNING 76 per cent of entries have no IDs.
-----------------
Entry 2 in the list of sources is a candidate afterglow for 960102_g141 with 3x3 stamp
ra=198.55602 (13:14:13.44) dec=11.26985 (+11:16:11.5) +/- 1.1" mag=17.47+/-0.35
dist=1.3 REFID=38
src: 2 distr. of nearby unmatched sources: 0 0 0 0 0
Found 1 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
198.5539 11.2718 10.2 -1 USNO-B1 20.77 20.19 20.45
##### This source remains a candidate #####
It has no entries within 4" or brighter than 13 mag
-----------------
Entry 4 in the list of sources is a candidate afterglow for 960102_g141 with 3x3 stamp
ra=198.59943 (13:14:23.86) dec=11.28776 (+11:17:15.9) +/- 1.1" mag=19.98+/-0.35
dist=167.2 REFID=112
*** The position of this source is inconsistent with the XRT position.
The position is 133.0 arc sec from the BAT position.
src: 4 distr. of nearby unmatched sources: 0 0 0 0 0
Found 0 entries in star catalog(s) within 20.0" of the candidate.
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 9 in the list of sources is a candidate afterglow for 960102_g141 with 3x3 stamp
ra=198.59038 (13:14:21.69) dec=11.30751 (+11:18:27.1) +/- 1.1" mag=19.29+/-0.35
dist=183.1 REFID=107
*** The position of this source is inconsistent with the XRT position.
The position is 191.4 arc sec from the BAT position.
src: 9 distr. of nearby unmatched sources: 0 0 0 0 0
Found 0 entries in star catalog(s) within 20.0" of the candidate.
*** If XRT position is correct, then this is NOT the afterglow
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
Unmatched source ra=198.55602 (13:14:13.44) dec=11.26985 (+11:16:11.5) +/- 1.1" mag=17.47+/-0.35 dist=1.3 REFID=38
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 18.12, XRT distances < 5.5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 1 good candidate(s) found.
srclist paragraph message for exposure 1 of trigger 960102
------ Start for Possible Stand-alone Circular ----
In response to GRB200306 (Swift/BAT trigger 960102) at 22:50:39 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 250 seconds with the U filter starting
117 seconds after the BAT trigger. There is a candidate afterglow in the list
of sources generated on-board at
RA(J2000) = 13:14:13.44 = 198.55602
DEC(J2000) = +11:16:11.5 = 11.26985
with a 90%-confidence error radius of about 1.10 arc sec. This position is 1.3
arc sec. from the center of the XRT error circle. The estimated magnitude is
17.47. No correction has been made for the expected extinction corresponding to
E(B-V) of 0.02.
------- notes for trigger 960102 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 200307d18h09m59s989737usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=960102
-expid=605227981 -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/960102/
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 605227981.10498 or about 2020:066:22:52:56 UT
Found 478 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 4% of the srclist region. Found 114 sources in
srclist catalog. Found 87 srclist source(s) without IDs. There are 1 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
18.12 mag.
Found 8 source(s) in Genie image catalog. Found 5 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 41 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 4% of the
Genie image region. The Genie image is INCOMPLETE with 9051 null pixels.
The closest Genie source has ra= 198.5706 dec= 11.2707 mag=18.49 sep=52.08".
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?
605227981 117 U 198.55602 11.26985 17.47/18.1 1.3 srclist Yes
605227981 117 U image found no candidates.
List afterglow candidates for other finding charts.
605228739 875 U srclist found no candidates.
605228739 875 U image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: u
GRB_DEC: 11.26985
GRB_ERROR: 1.10
GRB_RA: 198.55602
IMAGE_START_TIME: 22:52:56
MAGNITUDE: 17.47
MAG_ERROR: 0.4
MESSAGE_TYPE: ACK
SOURCE: XRT