srclist overlap message for exposure 2 of trigger 824063
uvot_overlap.pl vrs. 2010-12-20b fem started at 180410d11h11m02s242715usUT
The observation of trigger 824063 started 2018-04-10T08:08:57.5
Examining file ./824063_g357_uvot_sky_srclist.fits
The exposure ID is 545040537
The exposure time is undefined.
The filter is U.
The uvot region is centered at (95.9528,12.8098) with a roll angle of 275.1
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 (95.9810,12.8080) with a radius of 3.000 arc min
This is 1.652 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 27.39 sq. arc min or 0.97 of the BAT error circle
The XRT error circle is centered at (95.9572,12.8114) with a radius of 0.030 arc min
This is 0.272 arc min from the center of the uvot region
The area of the XRT error circle is 0.003 sq. arc min
The UVOT/XRT overlap is 0.003 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 2 of trigger 824063
find_uvot_ag.pl vrs. 2017-02-17 fem started at 180410d11h11m24s253503usUT
Observation start time is 2018-04-10T08:08:57.5
Examining file ./824063_g357_uvot_catalog_srclist.fits
The exposure ID is 545040537
The exposure is 250.034 sec.
The bin size is 2 pixels
The filter is U
There are 104 detected source(s) for 824063_g357
Aspect correction adds 0.00060 degrees (0.145 sec of time = 2.12 arc sec) to RA
Aspect correction adds -0.00022 degrees (-0.80 arcsec) to Dec
Total aspect correction is 2.26 arcsec
Star catalogs centered at 95.9546 , 12.8205 with radius 5.83 arc min.
n_usno: 1122 n_gsc: 1106
*** WARNING -- bright star catalog has 4 entries brighter than 12 mag
The brightest has mag 10.5266
RA DEC Mag Color
bright star 0: 95.89250 (06:23:34.20) 12.83751 (+12:50:15.1) 10.53 USNO-V
bright star 1: 95.91635 (06:23:39.92) 12.76331 (+12:45:47.9) 11.63 USNO-V
bright star 2: 96.01655 (06:24:03.97) 12.87071 (+12:52:14.6) 11.97 GSC-V
bright star 3: 96.04963 (06:24:11.91) 12.83565 (+12:50:08.3) 11.85 GSC-V
Mean distance difference (CAT_DELTA) for 75 matched entries is 0.728" for 824063_g357
Mean and std. dev of mag. difference (MAG_DELTA) are 1.906 and 0.768 for 824063_g357
Found 34 entries without IDs and 3 entries that are acceptable afterglow candidates for 824063_g357.
Acceptable entries have no ID, XRT distances < 5", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
27 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=95.9810 (06:23:55.44) DEC=12.8080 (+12:48:28.8)
XRT distances are from RA=95.9572 (06:23:49.72) DEC=12.8114 (+12:48:41.1)
*** WARNING 32 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 824063_g357 with 3x3 stamp
ra=95.94933 (06:23:47.84) dec=12.79768 (+12:47:51.6) +/- 1.1" mag=18.51+/-0.35
dist=56.6 REFID=95
*** The position of this source is inconsistent with the XRT position.
The position is 120.6 arc sec from the BAT position.
src: 0 distr. of nearby unmatched sources: 1 0 0 0 1
Found 11 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
95.9475 12.8027 19.2 -1 USNO-B1 20.79 19.37 20.00
95.9505 12.7982 4.5 -1 USNO-B1 99.99 17.39 99.99
95.9503 12.7981 3.7 -1 USNO-B1 18.33 16.70 17.42 *
95.9496 12.7969 2.8 -1 USNO-B1 99.99 13.41 99.99 *
95.9489 12.7966 4.1 -1 USNO-B1 14.82 13.50 14.09
95.9505 12.7927 18.2 -1 USNO-B1 17.27 15.86 16.49
95.9475 12.8026 18.9 -1 GSC2.3 19.65 21.99 99.99
95.9507 12.7983 5.3 -1 GSC2.3 18.14 19.88 99.99
95.9491 12.7972 2.0 -1 GSC2.3 15.34 99.99 99.99 *
95.9487 12.7960 6.6 -1 GSC2.3 15.23 14.83 14.19
95.9505 12.7927 18.3 -1 GSC2.3 16.25 17.82 17.89
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 2 in the list of sources is a candidate afterglow for 824063_g357 with 3x3 stamp
ra=95.94828 (06:23:47.59) dec=12.79611 (+12:47:46.0) +/- 1.1" mag=18.03+/-0.35
dist=63.3 REFID=49
*** The position of this source is inconsistent with the XRT position.
The position is 125.9 arc sec from the BAT position.
src: 2 srclist_match has ID
src: 2 distr. of nearby unmatched sources: 0 2 0 1 0
Found 12 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
95.9505 12.7982 10.9 -1 USNO-B1 99.99 17.39 99.99
95.9503 12.7981 10.0 -1 USNO-B1 18.33 16.70 17.42
95.9496 12.7969 5.3 -1 USNO-B1 99.99 13.41 99.99
95.9489 12.7966 2.9 -1 USNO-B1 14.82 13.50 14.09 *
95.9505 12.7927 14.4 -1 USNO-B1 17.27 15.86 16.49
95.9513 12.7922 17.6 -1 USNO-B1 99.99 15.76 99.99
95.9464 12.7923 15.3 -1 USNO-B1 20.79 19.15 19.88
95.9507 12.7983 11.6 -1 GSC2.3 18.14 19.88 99.99
95.9491 12.7972 4.8 -1 GSC2.3 15.34 99.99 99.99
95.9487 12.7960 1.5 -1 GSC2.3 15.23 14.83 14.19 *
95.9505 12.7927 14.5 -1 GSC2.3 16.25 17.82 17.89
95.9466 12.7922 15.4 -1 GSC2.3 99.99 21.55 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 50 in the list of sources is a candidate afterglow for 824063_g357 with 3x3 stamp
ra=96.00775 (06:24:01.86) dec=12.83686 (+12:50:12.7) +/- 1.1" mag=17.92+/-0.35
dist=199.8 REFID=55
*** The position of this source is inconsistent with the XRT position.
The position is 137.7 arc sec from the BAT position.
src: 50 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
96.0075 12.8359 3.6 -1 USNO-B1 14.45 13.41 13.87 *
96.0065 12.8405 13.9 -1 USNO-B1 20.27 18.60 19.34
96.0134 12.8370 19.7 -1 USNO-B1 20.29 99.99 99.99
96.0076 12.8359 3.6 -1 GSC2.3 13.24 14.47 13.77 *
96.0065 12.8405 13.9 -1 GSC2.3 18.50 20.94 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
Found 6 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
95.9586 12.8134 8.6 -1 USNO-B1 19.57 18.31 18.87
95.9588 12.8131 8.4 -1 USNO-B1 20.01 18.52 19.18
95.9593 12.8125 8.5 -1 USNO-B1 19.20 17.76 18.40
95.9573 12.8103 4.2 -1 USNO-B1 19.12 17.40 18.17
95.9593 12.8125 8.4 -1 GSC2.3 17.86 19.52 18.80
95.9573 12.8102 4.4 -1 GSC2.3 17.66 19.40 18.04
The closest star is 4.19" away.
List UVOT sources within 10" of the XRT position:
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 18.12, XRT distances < 5",
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 2 of trigger 824063
WARNING -- because of the LARGE EXTINCTION, results should be used cautiously.
------ Start for Possible Stand-alone Circular ----
In response to GRB180410 (Swift/BAT trigger 824063) at 08:02:59 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 250 seconds with the U filter starting
337 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 19.2 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 18.0 mag. No
correction has been made for the large, but uncertain, extinction expected.
------- notes for trigger 824063 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 180410d11h11m32s008541usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=824063
-expid=545040537 -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/824063/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
Unreliable extinction found for xrt position. XRT position found for srclist.
XRT position found for Genie image. BAT position found.
UVOT exposure began at MET 545040537.46428 or about 2018:100:08:08:52 UT
Found 1118 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 22% of the srclist region. Found 104 sources in
srclist catalog. Found 34 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
18.12 mag.
Found 12 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 20.09 mag. Found 188 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 34091.1 counts in the large background region of 6153.0 pixels or a rate
of 5.541 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 19.58 mag. for a
4-arcsec aperture.
Found 1143.0 counts in the XRT position region of 199.0 pixels or a rate of
5.744 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is 0.171 +/- 0.146 (1-sigma) cps or
20.30 mag and a range from 19.63 to 22.40 mag. The 3-sigma UL at the XRT
position is 0.608 cps or 18.92 mag. The closest srclist source has ra= 95.9493
dec= 12.7977 mag=18.51 sep=56.62". The closest Genie source has ra= 95.9603
dec= 12.8168 mag=18.43 sep=22.21".
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?
545040537 337 U srclist found no candidates.
545040537 337 U image found no candidates.
List afterglow candidates for other finding charts.
545040379 179 WHITE srclist found no candidates.
545040379 179 WHITE image found no candidates.
545041069 869 WHITE srclist found no candidates.
545041069 869 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: u
GRB_DEC: 12.81142
GRB_ERROR: 5
GRB_RA: 95.95717
IMAGE_START_TIME: 08:08:52
MAGNITUDE: 18.9
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT