srclist overlap message for exposure 3 of trigger 895503
uvot_overlap.pl vrs. 2010-12-20b fem started at 190327d23h34m39s643668usUT
The observation of trigger 895503 started 2019-03-27T23:30:56.0
Examining file 895503_g882_uvot_sky_srclist.fits
The exposure ID is 575422256
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (297.8243,39.0688) with a roll angle of 101.7
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 (297.8160,39.0700) with a radius of 3.000 arc min
This is 0.394 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 28.27 sq. arc min or 1.00 of the BAT error circle
Could not find the location of an XRT error circle
srclist afterglow message for exposure 3 of trigger 895503
find_uvot_ag.pl vrs. 2017-02-17 fem started at 190327d23h34m40s609583usUT
Observation start time is 2019-03-27T23:30:56.0
Examining file 895503_g882_uvot_catalog_srclist.fits
The exposure ID is 575422256
The exposure is 150.000 sec.
The bin size is 2 pixels
The filter is WHITE
There are 190 detected source(s) for 895503_g882
*** WARNING -- the sources have filled the available telemetry buffer (190).
srclist_overlap returned: bat_overlap 0.301
Dimmest detected source in 895503_g882 has mag 19.21
Aspect correction adds 0.00088 degrees (0.211 sec of time = 2.46 arc sec) to RA
Aspect correction adds -0.00032 degrees (-1.14 arcsec) to Dec
Total aspect correction is 2.71 arcsec
Star catalogs centered at 297.8473 , 39.0953 with radius 7.40 arc min.
n_usno: 3101 n_gsc: 0
*** WARNING -- bright star catalog has 14 entries brighter than 12 mag
The brightest has mag 9.40664
RA DEC Mag Color
bright star 0: 297.83911 (19:51:21.39) 39.05924 (+39:03:33.2) 11.70 USNO-V
bright star 1: 297.84663 (19:51:23.19) 39.01254 (+39:00:45.2) 11.11 USNO-V
bright star 2: 297.75126 (19:51:00.30) 39.14515 (+39:08:42.5) 11.76 USNO-V
bright star 3: 297.96558 (19:51:51.74) 39.07605 (+39:04:33.8) 9.41 USNO-V
bright star 4: 297.71375 (19:50:51.30) 39.10463 (+39:06:16.7) 10.69 USNO-V
bright star 5: 297.98216 (19:51:55.72) 39.11042 (+39:06:37.5) 11.09 USNO-V
bright star 6: 297.74872 (19:50:59.69) 39.02058 (+39:01:14.1) 9.60 USNO-V
bright star 7: 297.71881 (19:50:52.51) 39.04723 (+39:02:50.0) 11.51 USNO-V
bright star 8: 297.73715 (19:50:56.92) 39.16984 (+39:10:11.4) 9.84 USNO-V
bright star 9: 297.70230 (19:50:48.55) 39.11392 (+39:06:50.1) 11.65 USNO-V
bright star 10: 297.90420 (19:51:37.01) 38.98701 (+38:59:13.2) 10.95 USNO-V
bright star 11: 297.95335 (19:51:48.80) 39.01041 (+39:00:37.5) 10.86 USNO-R
bright star 12: 297.73843 (19:50:57.22) 39.01250 (+39:00:45.0) 11.32 USNO-V
bright star 13: 297.79797 (19:51:11.51) 38.97991 (+38:58:47.7) 11.29 USNO-V
*** WARNING -- no XRT distances are available.
Mean distance difference (CAT_DELTA) for 178 matched entries is 0.805" for 895503_g882
Mean and std. dev of mag. difference (MAG_DELTA) are 2.583 and 0.464 for 895503_g882
Found 15 entries without IDs and 0 entries that are acceptable afterglow candidates for 895503_g882.
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.
8 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=297.8160 (19:51:15.84) DEC=39.0700 (+39:04:12.0)
XRT distances are as reported in catalog file.
Found NO acceptable entries.
Unidentified entry closest to BAT position is no. 57:
ra=297.89880 dec= 39.10591 +/- 1.1" mag=18.29+/-0.35 dist=265.0 REFID=110
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 895503
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 GRB190327 (Swift/BAT trigger 895503) at 23:16:13 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 73 seconds with the White filter
starting 859 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 30% 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 0.25.
------- notes for trigger 895503 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 190327d23h34m44s625213usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=895503
-expid=575422256 -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/895503/
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. BAT position found.
UVOT exposure began at MET 575422256.04352 or about 2019:086:23:30:51 UT
Found 3097 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 39% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 15 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 19.21 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?
575422256 859 WHITE srclist found no candidates.
575422256 859 ? image data are not available.
List afterglow candidates for other finding charts.
575421465 68 WHITE 297.78402 39.03139 17.47/18.7 165.3 srclist Yes
575421465 68 WHITE 297.74823 39.05393 18.41/18.7 198.1 srclist Yes
575421465 68 WHITE 297.83484 39.07434 18.58/19.8 54.9 image Yes
575421677 280 U srclist found no candidates.
575421677 280 U image found no candidates.
------- Tokens for Quick GCN -------