srclist overlap message for exposure 1 of trigger 907950
uvot_overlap.pl vrs. 2010-12-20b fem started at 190611d20h44m44s819102usUT
The observation of trigger 907950 started 2019-06-11T17:51:21.8
Examining file ./907950_g139_uvot_sky_srclist.fits
The exposure ID is 581968281
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (324.7818,-56.0843) with a roll angle of 97.0
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 (324.7690,-56.0820) with a radius of 3.000 arc min
This is 0.449 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 (324.7227,-56.0742) with a radius of 0.030 arc min
This is 2.068 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 1 of trigger 907950
find_uvot_ag.pl vrs. 2017-02-17 fem started at 190611d20h44m49s134745usUT
Observation start time is 2019-06-11T17:51:21.8
Examining file ./907950_g139_uvot_catalog_srclist.fits
The exposure ID is 581968281
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 33 detected source(s) for 907950_g139
Aspect correction adds 0.00280 degrees (0.671 sec of time = 5.62 arc sec) to RA
Aspect correction adds -0.00049 degrees (-1.78 arcsec) to Dec
Total aspect correction is 5.89 arcsec
Star catalogs centered at 324.7692 , -56.0781 with radius 5.56 arc min.
n_usno: 253 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 33 matched entries is 0.599" for 907950_g139
Mean and std. dev of mag. difference (MAG_DELTA) are 1.213 and 0.313 for 907950_g139
Found 0 entries without IDs and 0 entries that are acceptable afterglow candidates for 907950_g139.
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.
Magnitude criteria will be applied later.
BAT distances are from RA=324.7690 (21:39:04.56) DEC=-56.0820 (-56:04:55.2)
XRT distances are from RA=324.7227 (21:38:53.44) DEC=-56.0742 (-56:04:27.3)
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
324.7233 -56.0738 2.0 -1 USNO-B1 20.98 19.34 20.07
The closest star is 2.01" 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 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 1 of trigger 907950
IMAGE PROBLEM: no overlap
------ Start for Possible Stand-alone Circular ----
In response to GRB190611 (Swift/BAT trigger 907950) at 17:49:01 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 116 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 none of
the XRT error circle. 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 0.04.
------- notes for trigger 907950 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 190611d20h45m00s237133usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=907950
-expid=581968281 -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/907950/
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 581968281.84974 or about 2019:162:17:51:16 UT
Found 249 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 5% of the srclist region. Found 33 sources in
srclist catalog. Found 0 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 5 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 20.60 mag. Found 50 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 5% of the
Genie image region.
Genie image analysis:
Found 66810.5 counts in the large background region of 6092.0 pixels or a rate
of 10.967 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 20.05 mag. for a
4-arcsec aperture. The closest srclist source has ra= 324.6890 dec= -56.0569
mag=19.38 sep=92.07". The closest Genie source has ra= 324.7527 dec= -56.0748
mag=20.44 sep=60.34".
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?
581968281 115 WHITE srclist found no candidates.
581968281 115 WHITE image found no candidates.
List afterglow candidates for other finding charts.
581968439 273 U srclist found no candidates.
581968439 273 U image found no candidates.
581969041 875 WHITE srclist found no candidates.
581969041 875 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: -56.07425
GRB_ERROR: 5
GRB_RA: 324.72267
IMAGE_START_TIME: 17:51:16
MAGNITUDE: 18.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT