image overlap message for exposure 1 of trigger 1152764
uvot_overlap.pl vrs. 2010-12-20b fem started at 230205d17h49m22s104181usUT
The observation of trigger 1152764 started 2023-02-05T10:32:02.2
Examining file ./1152764_g130_uvot_sky_image.fits
The exposure ID is 697285922
The exposure time is 149.846 (seconds)
The filter is WHITE.
The uvot region is centered at (202.0807,46.6870) with a roll angle of 81.6
It is square with sides of 2.68 arc min. for an area of 7.17 sq arc min
The BAT error circle is centered at (202.0720,46.6840) with a radius of 3.000 arc min
This is 0.400 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 7.17 sq. arc min or 0.25 of the BAT error circle
The XRT error circle is centered at (202.0710,46.7252) with a radius of 0.032 arc min
This is 2.329 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 0.000 sq. arc min or 0.00 of the XRT error circle
image afterglow message for exposure 1 of trigger 1152764
find_uvot_ag.pl vrs. 2020-10-30 fem started at 230205d17h49m24s505332usUT
Observation start time is 2023-02-05T10:32:02.2
Examining file ./1152764_g130_uvot_catalog_image.fits
The exposure ID is 697285922
The exposure is 149.846 sec.
The bin size is 2 pixels
The filter is WHITE
There are 5 detected source(s) for 1152764_g130
Aspect correction adds 0.00230 degrees (0.552 sec of time = 5.69 arc sec) to RA
Aspect correction adds 0.00041 degrees ( 1.47 arcsec) to Dec
Total aspect correction is 5.87 arcsec
Star catalogs centered at 202.0780 , 46.6835 with radius 2.68 arc min.
n_usno: 108 n_gsc: 0
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 10.23256
RA DEC Mag Color
bright star 0: 202.04245 (13:28:10.19) 46.67203 (+46:40:19.3) 10.23 USNO-V
Mean distance difference (CAT_DELTA) for 7 matched entries is 1.276" for 1152764_g130
Mean and std. dev of mag. difference (MAG_DELTA) are -0.326 and 1.129 for 1152764_g130
Found 2 entries without IDs and 1 entries that are acceptable afterglow candidates for 1152764_g130.
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.
1 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=202.0720 (13:28:17.28) DEC=46.6840 (+46:41:02.4)
XRT distances are from RA=202.0710 (13:28:17.03) DEC=46.7252 (+46:43:30.7)
*** WARNING 40 per cent of entries have no IDs.
-----------------
Entry 8 in the list of sources is a candidate afterglow for 1152764_g130 with genie
ra=202.11316 (13:28:27.16) dec=46.69795 (+46:41:52.6) +/- 1.0" mag=20.98+/-0.25
dist=143.1 REFID=4 major=1.1 minor=0.8 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 113.4 arc sec from the BAT position.
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
202.1138 46.6980 1.5 -1 USNO-B1 20.66 19.62 20.08 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 12 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
202.0738 46.7256 7.3 -1 USNO-B1 20.38 20.18 20.27
The closest star is 7.28" away.
List UVOT sources within 10" of the XRT position:
There are 37366.488 counts in the bkg source region of 6206.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 6.021 counts/pixel (5-sig UL in 4" is 20.37 mag) for 1152764_g130
Do not compute counts in XRT region because position is too far from center.
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 20.93, XRT distances < 5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 1152764_697285922_230205d17h49m24s505332usUT_bkg.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(202.0807,46.6870,45")
fk5;-circle(202.088577555986,46.6813742449702,6")
image paragraph message for exposure 1 of trigger 1152764
IMAGE PROBLEM: no overlap
------ Start for Possible Stand-alone Circular ----
In response to GRB230205 (Swift/BAT trigger 1152764) at 10:29:51 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 100 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 0.036.
------- notes for trigger 1152764 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 230205d17h49m30s108307usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1152764
-expid=697285922 -meonly -msg_image
Results from standard processing of UVOT TDRSS data for this trigger should be
available at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/1152764/
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 697285922.17206 or about 2023:036:10:31:57 UT
Found 378 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 6% of the srclist region. Found 82 sources in
srclist catalog. Found 55 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 2 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 20.93 mag. Found 104 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 10% of the
Genie image region.
Genie image analysis:
Found 37366.5 counts in the large background region of 6206.0 pixels or a rate
of 6.021 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 20.20 mag. for a
4-arcsec aperture. The closest srclist source has ra= 202.0579 dec= 46.7311
mag=19.11 sep=38.73". The closest Genie source has ra= 202.1132 dec= 46.6979
mag=20.98 sep=143.09".
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?
697285922 100 WHITE srclist found no candidates.
697285922 100 WHITE image found no candidates.
List afterglow candidates for other finding charts.
697286080 258 U srclist found no candidates.
697286080 258 U image found no candidates.
697286681 859 WHITE srclist found no candidates.
697286681 859 ? image data are not available.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: 46.72519
GRB_ERROR: 5
GRB_RA: 202.07096
IMAGE_START_TIME: 10:31:57
MAGNITUDE: 18.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT