srclist overlap message for exposure 3 of trigger 972030
uvot_overlap.pl vrs. 2010-12-20b fem started at 200513d15h14m03s541710usUT
The observation of trigger 972030 started 2020-05-13T15:10:19.4
Examining file 972030_g891_uvot_sky_srclist.fits
The exposure ID is 611075419
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (245.0755,-15.6633) with a roll angle of 76.1
It is square with sides of 12.05 arc min. for an area of 145.15 sq arc min
The BAT error circle is centered at (245.1630,-15.7460) with a radius of 3.000 arc min
This is 7.084 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 12.96 sq. arc min or 0.46 of the BAT error circle
Could not find the location of an XRT error circle
srclist afterglow message for exposure 3 of trigger 972030
find_uvot_ag.pl vrs. 2017-02-17 fem started at 200513d15h14m04s432448usUT
Observation start time is 2020-05-13T15:10:19.4
Examining file 972030_g891_uvot_catalog_srclist.fits
The exposure ID is 611075419
The exposure is 150.000 sec.
The bin size is 2 pixels
The filter is WHITE
There are 190 detected source(s) for 972030_g891
*** WARNING -- the sources have filled the available telemetry buffer (190).
srclist_overlap returned: bat_overlap 0.378
Dimmest detected source in 972030_g891 has mag 19.28
Aspect correction adds 0.00141 degrees (0.338 sec of time = 4.89 arc sec) to RA
Aspect correction adds -0.00071 degrees (-2.56 arcsec) to Dec
Total aspect correction is 5.52 arcsec
Star catalogs centered at 245.0845 , -15.6785 with radius 9.20 arc min.
n_usno: 1756 n_gsc: 0
*** WARNING -- bright star catalog has 5 entries brighter than 12 mag
The brightest has mag 10.7689
RA DEC Mag Color
bright star 0: 245.04410 (16:20:10.58) -15.66173 (-15:39:42.2) 11.40 USNO-V
bright star 1: 245.07874 (16:20:18.90) -15.55376 (-15:33:13.5) 11.37 USNO-V
bright star 2: 245.21260 (16:20:51.02) -15.70366 (-15:42:13.2) 10.77 USNO-V
bright star 3: 244.95806 (16:19:49.93) -15.62373 (-15:37:25.4) 11.57 USNO-V
bright star 4: 245.00280 (16:20:00.67) -15.80148 (-15:48:05.3) 11.33 USNO-V
*** WARNING -- no XRT distances are available.
Mean distance difference (CAT_DELTA) for 164 matched entries is 0.863" for 972030_g891
Mean and std. dev of mag. difference (MAG_DELTA) are 1.657 and 0.632 for 972030_g891
Found 30 entries without IDs and 1 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.
11 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.
-----------------
Entry 2 in the list of sources is a candidate afterglow for 972030_g891 with 1x1 stamp
ra=245.13486 (16:20:32.37) dec=-15.76114 (-15:45:40.1) +/- 1.1" mag=19.15+/-0.35
dist=111.7 REFID=148
src: 2 distr. of nearby unmatched sources: 0 0 0 0 0
Found 5 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
245.1376 -15.7580 14.9 -1 USNO-B1 20.26 19.51 19.84
245.1381 -15.7586 14.6 -1 USNO-B1 20.79 19.40 20.02
245.1347 -15.7617 2.1 -1 USNO-B1 17.76 16.51 17.06 *
245.1359 -15.7625 6.0 -1 USNO-B1 19.74 18.39 18.99
245.1364 -15.7625 7.1 -1 USNO-B1 19.51 18.39 18.89
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 18.66, BAT distances < 200",
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 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 image afterglow info
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 nominal 150.000 seconds with the White
filter starting 867 seconds after the BAT trigger. No credible afterglow
candidate has been found in the initial data products. Data from the 2.7'x2.7'
sub-image are not available at this time. 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 200513d15h14m07s295574usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=972030
-expid=611075419 -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/972030/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
*** Warning -- no exposure found, using srclist assumed value.
No XRT position found for srclist. 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.
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 ? image data are not available.
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 -------