image overlap message for exposure 1 of trigger 972030


uvot_overlap.pl vrs. 2010-12-20b fem started at 200513d15h03m43s148670usUT

The observation of trigger 972030 started 2020-05-13T14:58:26.9
Examining file 972030_g178_uvot_sky_image.fits
The exposure ID is 611074706
The exposure time is 149.857 (seconds)
The filter is WHITE.

The uvot region is centered at (244.9977,-15.6425) 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 11.392 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 1 of trigger 972030


find_uvot_ag.pl vrs. 2017-02-17 fem started at 200513d15h03m44s308259usUT

Observation start time is 2020-05-13T14:58:26.9
Examining file 972030_g178_uvot_sources_image.fits
The exposure ID is 611074706
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 0 detected source(s) for 972030_g178
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 245.0966 , -15.6837 with radius 2.00 arc min.
n_usno: 81 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
*** WARNING -- no XRT distances are available.
Found 0 entries without IDs and 0 entries that are acceptable afterglow candidates for 972030_g178.
Acceptable entries have no ID, BAT distance < 210" or XRT distance < 20", 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=245.1630 (16:20:39.12) DEC=-15.7460 (-15:44:45.6)
XRT distances are as reported in catalog file.
There are 0.0000000 counts in the bkg source region of 6318.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 0.000 counts/pixel (5-sig UL in 4" is 23.47 mag) for 972030_g178

Good candidates have no ID, acceptable profiles,
mag between 9.01 and 23.47, BAT distances < 210",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.

SUMMARY: 0 good candidate(s) found.
Results are questionable because aspect solution FAILED.



Region file: 972030_611074706_200513d15h03m44s308259usUT_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(244.9977,-15.6425,45")



image paragraph message for exposure 1 of trigger 972030


IMAGE PROBLEM: no overlap

------ 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 154 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 100% 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 200513d15h03m59s689505usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=972030
-expid=611074706 -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 611074706.89268 or about 2020:134:14:58:21 UT

Found 781 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 14% of the srclist region. Found 94 sources in
srclist catalog. Found 17 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 0 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 23.47 mag. Found 77 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 13% of the
Genie image region.

Found no Genie image background information.

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?
611074706  154 WHITE 245.18627	-15.71276  20.07/18.7  144.3  srclist  Yes
611074706  154 WHITE image found no candidates.
List afterglow candidates for other finding charts.

------- Tokens for Quick GCN -------

CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: -15.74600
GRB_ERROR: 200
GRB_RA: 245.16300
IMAGE_START_TIME: 14:58:21
MAGNITUDE: 18.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: BAT