image overlap message for exposure 3 of trigger 972030
uvot_overlap.pl vrs. 2010-12-20b fem started at 200513d15h16m07s569093usUT
The observation of trigger 972030 started 2020-05-13T15:10:19.4
Examining file 972030_g891_uvot_sky_image.fits
The exposure ID is 611075419
The exposure time is 149.868 (seconds)
The filter is WHITE.
The uvot region is centered at (245.0746,-15.6614) with a roll angle of 76.1
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 (245.1630,-15.7460) with a radius of 3.000 arc min
This is 7.198 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 0.00 sq. arc min or 0.00 of the BAT error circle
Could not find the location of an XRT error circle
image afterglow message for exposure 3 of trigger 972030
find_uvot_ag.pl vrs. 2017-02-17 fem started at 200513d15h16m08s609210usUT
Observation start time is 2020-05-13T15:10:19.4
Examining file 972030_g891_uvot_catalog_image.fits
The exposure ID is 611075419
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 11 detected source(s) for 972030_g891
Aspect correction adds 0.00145 degrees (0.348 sec of time = 5.02 arc sec) to RA
Aspect correction adds -0.00071 degrees (-2.56 arcsec) to Dec
Total aspect correction is 5.63 arcsec
Star catalogs centered at 245.0708 , -15.6638 with radius 2.39 arc min.
n_usno: 109 n_gsc: 0
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.40336
RA DEC Mag Color
bright star 0: 245.04410 (16:20:10.58) -15.66173 (-15:39:42.2) 11.40 USNO-V
*** WARNING -- no XRT distances are available.
Mean distance difference (CAT_DELTA) for 11 matched entries is 0.411" for 972030_g891
Mean and std. dev of mag. difference (MAG_DELTA) are 0.653 and 0.151 for 972030_g891
Found 0 entries without IDs and 0 entries that are acceptable afterglow candidates for 972030_g891.
Acceptable entries have no ID, BAT distance < 200" or XRT distance < 10", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
0 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=245.1630 (16:20:39.12) DEC=-15.7460 (-15:44:45.6)
XRT distances are as reported in catalog file.
There are 84408.852 counts in the bkg source region of 6126.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 13.779 counts/pixel (5-sig UL in 4" is 19.93 mag) for 972030_g891
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.92, BAT distances < 200",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 972030_611075419_200513d15h16m08s609210usUT_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(245.0746,-15.6614,45")
fk5;-circle(245.075206488154,-15.6741512078855,6")
fk5;-circle(245.087864621464,-15.6593513871609,6")
fk5;-circle(245.07119408882,-15.663388806352,6")
fk5;-circle(245.06226975479,-15.6539274540758,6")
image paragraph message for exposure 3 of trigger 972030
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.
------ Start for Possible Stand-alone Circular ----
In response to GRB200513 (Swift/BAT trigger 972030) at 14:55:27 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 867 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 BAT error circle. The 8'x8' region for the list of sources generated
on-board covers 38% of the BAT 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 0.40.
------- notes for trigger 972030 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 200513d15h16m10s135582usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=972030
-expid=611075419 -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/972030/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
No XRT position found for srclist. No XRT position found for Genie image. BAT
position found.
UVOT exposure began at MET 611075419.4206 or about 2020:134:15:10:14 UT
Found 1752 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 14% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 30 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 18.66 mag.
Found 11 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 19.92 mag. Found 105 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
12% of the Genie image region.
Genie image analysis:
Found 84408.9 counts in the large background region of 6126.0 pixels or a rate
of 13.779 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 19.93 mag. for a
4-arcsec aperture. The number of srclist sources filled the available
telemetry. The weakest source detected was 19.28 mag.
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?
611075419 867 WHITE srclist found no candidates.
611075419 867 WHITE image found no candidates.
List afterglow candidates for other finding charts.
611074706 154 WHITE 245.18627 -15.71276 20.07/18.7 144.3 srclist Yes
611074706 154 WHITE image found no candidates.
611074866 314 U srclist found no candidates.
611074866 314 U image found no candidates.
------- Tokens for Quick GCN -------