srclist overlap message for exposure 3 of trigger 892607
uvot_overlap.pl vrs. 2010-12-20b fem started at 190311d16h39m39s077493usUT
The observation of trigger 892607 started 2019-03-11T14:38:34.2
Examining file ./892607_g900_uvot_sky_srclist.fits
The exposure ID is 574007914
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (212.0698,53.5059) with a roll angle of 48.7
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 (212.1020,53.5190) with a radius of 3.000 arc min
This is 1.393 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 (212.0654,53.5004) with a radius of 0.030 arc min
This is 0.367 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 3 of trigger 892607
find_uvot_ag.pl vrs. 2017-02-17 fem started at 190311d16h39m55s899979usUT
Observation start time is 2019-03-11T14:38:34.2
Examining file ./892607_g900_uvot_catalog_srclist.fits
The exposure ID is 574007914
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 82 detected source(s) for 892607_g900
Aspect correction adds 0.00015 degrees (0.035 sec of time = 0.31 arc sec) to RA
Aspect correction adds -0.00021 degrees (-0.75 arcsec) to Dec
Total aspect correction is 0.81 arcsec
Star catalogs centered at 212.0743 , 53.5043 with radius 8.78 arc min.
n_usno: 468 n_gsc: 0
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.40356
RA DEC Mag Color
bright star 0: 212.20448 (14:08:49.08) 53.51505 (+53:30:54.2) 11.40 USNO-V
Mean distance difference (CAT_DELTA) for 48 matched entries is 0.788" for 892607_g900
Mean and std. dev of mag. difference (MAG_DELTA) are 1.350 and 0.778 for 892607_g900
Found 36 entries without IDs and 2 entries that are acceptable afterglow candidates for 892607_g900.
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.
28 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=212.1020 (14:08:24.48) DEC=53.5190 (+53:31:08.4)
XRT distances are from RA=212.0654 (14:08:15.69) DEC=53.5004 (+53:30:01.3)
*** WARNING 43 per cent of entries have no IDs.
-----------------
Entry 18 in the list of sources is a candidate afterglow for 892607_g900 with 3x3 stamp
ra=212.16346 (14:08:39.23) dec=53.47723 (+53:28:38.0) +/- 1.1" mag=20.10+/-0.35
dist=226.0 REFID=72
*** The position of this source is inconsistent with the XRT position.
The position is 199.8 arc sec from the BAT position.
src: 18 distr. of nearby unmatched sources: 0 0 1 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
212.1590 53.4765 10.0 -1 USNO-B1 21.44 20.01 20.64
212.1651 53.4795 9.0 -1 USNO-B1 13.91 12.91 13.35 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 19 in the list of sources is a candidate afterglow for 892607_g900 with 3x3 stamp
ra=212.16712 (14:08:40.11) dec=53.47962 (+53:28:46.6) +/- 1.1" mag=20.27+/-0.35
dist=230.4 REFID=79
*** The position of this source is inconsistent with the XRT position.
The position is 198.9 arc sec from the BAT position.
src: 19 distr. of nearby unmatched sources: 0 0 1 0 0
Found 1 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
212.1651 53.4795 4.4 -1 USNO-B1 13.91 12.91 13.35 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Found 0 entries in star catalog(s) within 10" of the XRT position.
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 19.22, 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 3 of trigger 892607
------ Start for Possible Stand-alone Circular ----
In response to GRB190311 (Swift/BAT trigger 892607) at 14:23:33 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 877 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 14:08:15.73 = 212.06553
DEC(J2000) = +53:30:02.7 = 53.50075
with a 90%-confidence error radius of about 0.73 arc sec. This position is 1.4
arc sec. from the center of the XRT error circle. The estimated magnitude is
20.33 with a 1-sigma error of about 0.19. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.01.
------- notes for trigger 892607 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 190311d16h39m58s396738usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=892607
-expid=574007914 -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/892607/
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 574007914.20224 or about 2019:070:14:38:29 UT
Found 464 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 4% of the srclist region. Found 82 sources in
srclist catalog. Found 36 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 8 source(s) in Genie image catalog. 1 source(s) are within 10.0" of the
xrt position. Found 1 Genie image source(s) without IDs. There are 1 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.96 mag. Found 49 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 4% of the Genie image region. The
closest srclist source has ra= 212.0757 dec= 53.4930 mag=16.88 sep=34.64".
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?
574007914 877 WHITE srclist found no candidates.
574007914 877 WHITE 212.06553 53.50075 20.33/21.0 1.4 image Yes
List afterglow candidates for other finding charts.
574007123 86 WHITE srclist found no candidates.
574007123 86 WHITE 212.06532 53.50082 19.46/21.0 1.7 image Yes
574007336 299 U srclist found no candidates.
574007336 299 U 212.06562 53.50060 19.68/20.8 1.0 image Yes
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 53.50075
GRB_ERROR: 0.73
GRB_RA: 212.06553
IMAGE_START_TIME: 14:38:29
MAGNITUDE: 20.33
MAG_ERROR: 0.19
MESSAGE_TYPE: ACK
SOURCE: XRT