image overlap message for exposure 2 of trigger 1030629
uvot_overlap.pl vrs. 2010-12-20b fem started at 210205d14h10m28s851780usUT
The observation of trigger 1030629 started 2021-02-05T11:16:40.2
Examining file ./1030629_g322_uvot_sky_image.fits
The exposure ID is 634216600
The exposure time is 59.417 (seconds)
The filter is U.
The uvot region is centered at (347.2536,56.3096) with a roll angle of 207.7
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 (347.2570,56.3120) with a radius of 3.000 arc min
This is 0.184 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 (347.2191,56.2965) with a radius of 0.033 arc min
This is 1.391 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 2 of trigger 1030629
find_uvot_ag.pl vrs. 2020-10-30 fem started at 210205d14h10m49s042372usUT
Observation start time is 2021-02-05T11:16:40.2
Examining file ./1030629_g322_uvot_catalog_image.fits
The exposure ID is 634216600
The exposure is 59.417 sec.
The bin size is 2 pixels
The filter is U
There are 10 detected source(s) for 1030629_g322
Aspect correction adds 0.00184 degrees (0.441 sec of time = 3.67 arc sec) to RA
Aspect correction adds -0.00079 degrees (-2.84 arcsec) to Dec
Total aspect correction is 4.64 arcsec
Star catalogs centered at 347.2539 , 56.3071 with radius 2.53 arc min.
n_usno: 249 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 10 matched entries is 0.774" for 1030629_g322
Mean and std. dev of mag. difference (MAG_DELTA) are 1.302 and 0.556 for 1030629_g322
Found 0 entries without IDs and 0 entries that are acceptable afterglow candidates for 1030629_g322.
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=347.2570 (23:09:01.68) DEC=56.3120 (+56:18:43.2)
XRT distances are from RA=347.2191 (23:08:52.58) DEC=56.2965 (+56:17:47.4)
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
There are 8214.2861 counts in the bkg source region of 6085.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 1.350 counts/pixel (5-sig UL in 4" is 18.74 mag) for 1030629_g322
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 19.30, 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: 1030629_634216600_210205d14h10m49s042372usUT_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(347.2536,56.3096,45")
fk5;-circle(347.267332736289,56.3122503391128,6")
fk5;-circle(347.278737105751,56.3108175225517,6")
fk5;-circle(347.245887400013,56.3007036798439,6")
image paragraph message for exposure 2 of trigger 1030629
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: no overlap
SRCLIST PROBLEM: srclist filled telemetry buffer
See notes for more details.
WARNING -- because of the LARGE EXTINCTION, results should be used cautiously.
------ Start for Possible Stand-alone Circular ----
In response to GRB210205 (Swift/BAT trigger 1030629) at 11:11:17 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 59 seconds with the U filter starting
296 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 coverage of the XRT error circle by the 8'x8' region for
the list of sources generated on-board is uncertain because the large number of
sources filled the available telemetry. 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 1030629 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 210205d14h10m52s537281usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1030629
-expid=634216600 -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/1030629/
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 634216600.20902 or about 2021:036:11:16:35 UT
Found 3145 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 27% of the srclist region. Found 186 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 27 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 17.34 mag.
Found 10 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 19.30 mag. Found 245 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
26% of the Genie image region.
Genie image analysis:
Found 8214.3 counts in the large background region of 6085.0 pixels or a rate
of 1.350 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 18.59 mag. for a
4-arcsec aperture. The number of srclist sources filled the available
telemetry. The weakest source detected was 19.01 mag. The closest srclist
source has ra= 347.2066 dec= 56.2922 mag=17.36 sep=29.25". The closest Genie
source has ra= 347.2219 dec= 56.2989 mag=17.86 sep=10.32".
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?
634216600 295 U srclist found no candidates.
634216600 295 U image found no candidates.
List afterglow candidates for other finding charts.
634216442 137 WHITE srclist found no candidates.
634216442 137 WHITE image found no candidates.
------- Tokens for Quick GCN -------