srclist overlap message for exposure 1 of trigger 982201
uvot_overlap.pl vrs. 2010-12-20b fem started at 200713d16h16m13s027734usUT
The observation of trigger 982201 started 2020-07-13T11:45:59.4
Examining file ./982201_g184_uvot_sky_srclist.fits
The exposure ID is 616333559
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (76.9606,-32.8165) with a roll angle of 37.5
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 (76.9620,-32.8250) with a radius of 3.000 arc min
This is 0.512 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 (76.9499,-32.8147) with a radius of 0.035 arc min
This is 0.552 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 982201
find_uvot_ag.pl vrs. 2017-02-17 fem started at 200713d16h16m16s166831usUT
Observation start time is 2020-07-13T11:45:59.4
Examining file ./982201_g184_uvot_catalog_srclist.fits
The exposure ID is 616333559
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 29 detected source(s) for 982201_g184
Aspect correction adds -0.00101 degrees (-0.242 sec of time = -3.06 arc sec) to RA
Aspect correction adds 0.00346 degrees (12.46 arcsec) to Dec
Total aspect correction is 12.83 arcsec
Star catalogs centered at 76.9514 , -32.8271 with radius 5.83 arc min.
n_usno: 360 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 28 matched entries is 0.732" for 982201_g184
Mean and std. dev of mag. difference (MAG_DELTA) are 2.088 and 0.518 for 982201_g184
Found 4 entries without IDs and 4 entries that are acceptable afterglow candidates for 982201_g184.
Acceptable entries have no ID, XRT distances < 5.25", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
Magnitude criteria will be applied later.
BAT distances are from RA=76.9620 (05:07:50.88) DEC=-32.8250 (-32:49:30.0)
XRT distances are from RA=76.9499 (05:07:47.98) DEC=-32.8147 (-32:48:53.1)
-----------------
Entry 9 in the list of sources is a candidate afterglow for 982201_g184 with 5x5 stamp
ra=76.94620 (05:07:47.09) dec=-32.84839 (-32:50:54.2) +/- 1.1" mag=16.76+/-0.35
dist=121.6 REFID=7
*** The position of this source is inconsistent with the XRT position.
The position is 96.8 arc sec from the BAT position.
src: 9 distr. of nearby unmatched sources: 1 1 0 0 0
Found 4 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
76.9509 -32.8474 14.5 -1 USNO-B1 20.48 21.72 21.17
76.9466 -32.8490 2.6 -1 USNO-B1 15.27 13.58 14.33 *
76.9476 -32.8492 5.1 -1 USNO-B1 99.99 13.89 99.99
76.9508 -32.8510 16.8 -1 USNO-B1 19.71 18.00 18.76
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 13 in the list of sources is a candidate afterglow for 982201_g184 with 5x5 stamp
ra=76.98652 (05:07:56.77) dec=-32.83114 (-32:49:52.1) +/- 1.1" mag=19.38+/-0.35
dist=125.5 REFID=28
*** The position of this source is inconsistent with the XRT position.
The position is 77.4 arc sec from the BAT position.
src: 13 distr. of nearby unmatched sources: 1 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
76.9874 -32.8313 2.8 -1 USNO-B1 19.16 16.11 17.47 *
76.9927 -32.8322 19.2 -1 USNO-B1 19.64 20.77 20.27
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 14 in the list of sources is a candidate afterglow for 982201_g184 with 5x5 stamp
ra=76.95854 (05:07:50.05) dec=-32.78293 (-32:46:58.6) +/- 1.1" mag=19.78+/-0.35
dist=117.5 REFID=29
*** The position of this source is inconsistent with the XRT position.
The position is 151.8 arc sec from the BAT position.
src: 14 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
76.9556 -32.7865 15.6 -1 USNO-B1 20.19 19.00 19.53
76.9526 -32.7815 18.7 -1 USNO-B1 18.86 99.99 99.99
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 25 in the list of sources is a candidate afterglow for 982201_g184 with 5x5 stamp
ra=76.98331 (05:07:55.99) dec=-32.86731 (-32:52:02.3) +/- 1.1" mag=19.25+/-0.35
dist=214.5 REFID=27
*** The position of this source is inconsistent with the XRT position.
The position is 165.4 arc sec from the BAT position.
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
76.9803 -32.8666 9.3 -1 USNO-B1 19.60 19.93 19.78
76.9820 -32.8659 6.6 -1 USNO-B1 19.60 17.28 18.31
76.9828 -32.8666 3.0 -1 USNO-B1 14.44 12.93 13.60 *
76.9866 -32.8684 10.8 -1 USNO-B1 20.02 19.68 19.83
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
76.9493 -32.8140 3.3 -1 USNO-B1 18.40 23.65 21.32
The closest star is 3.30" away.
List UVOT sources within 10" of the XRT position:
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.22, XRT distances < 5.25",
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 982201
------ Start for Possible Stand-alone Circular ----
In response to GRB200713 (Swift/BAT trigger 982201) at 11:42:54 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 159 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
0.02.
------- notes for trigger 982201 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 200713d16h16m20s756044usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=982201
-expid=616333559 -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/982201/
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 616333559.36794 or about 2020:195:11:45:54 UT
Found 356 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 7% of the srclist region. Found 29 sources in
srclist catalog. Found 4 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 4 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 20.30 mag. Found 72 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 7% of the
Genie image region.
Genie image analysis:
Found 121571.0 counts in the large background region of 6298.0 pixels or a rate
of 19.303 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 19.74 mag. for a
4-arcsec aperture.
Found 3622.7 counts in the XRT position region of 194.0 pixels or a rate of
18.674 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is -0.815 +/- 0.432 (1-sigma) cps. The
3-sigma UL at the XRT position is 1.297 cps or 19.50 mag. The closest srclist
source has ra= 76.9511 dec= -32.8316 mag=15.66 sep=60.91". The closest Genie
source has ra= 76.9510 dec= -32.8317 mag=14.08 sep=61.19".
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?
616333559 159 WHITE srclist found no candidates.
616333559 159 WHITE image found no candidates.
List afterglow candidates for other finding charts.
616333717 317 U srclist found no candidates.
616333717 317 U image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: -32.81475
GRB_ERROR: 5.25
GRB_RA: 76.94992
IMAGE_START_TIME: 11:45:54
MAGNITUDE: 19.5
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT