image overlap message for exposure 2 of trigger 937114
uvot_overlap.pl vrs. 2010-12-20b fem started at 191115d11h51m03s415543usUT
The observation of trigger 937114 started 2019-11-15T11:41:14.9
Examining file 937114_g893_uvot_sky_image.fits
The exposure ID is 595510874
The exposure time is 149.879 (seconds)
The filter is WHITE.
The uvot region is centered at (292.1759,38.7287) with a roll angle of 237.7
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 (292.1790,38.7300) with a radius of 3.000 arc min
This is 0.166 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
Could not find the location of an XRT error circle
image afterglow message for exposure 2 of trigger 937114
find_uvot_ag.pl vrs. 2017-02-17 fem started at 191115d11h51m04s405877usUT
Observation start time is 2019-11-15T11:41:14.9
Examining file 937114_g893_uvot_catalog_image.fits
The exposure ID is 595510874
The exposure is 149.879 sec.
The bin size is 2 pixels
The filter is WHITE
There are 34 detected source(s) for 937114_g893
Aspect correction adds 0.00007 degrees (0.018 sec of time = 0.21 arc sec) to RA
Aspect correction adds 0.00173 degrees ( 6.23 arcsec) to Dec
Total aspect correction is 6.23 arcsec
Star catalogs centered at 292.1754 , 38.7262 with radius 2.60 arc min.
n_usno: 307 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
*** WARNING -- no XRT distances are available.
Mean distance difference (CAT_DELTA) for 35 matched entries is 0.454" for 937114_g893
Mean and std. dev of mag. difference (MAG_DELTA) are 1.113 and 0.480 for 937114_g893
Found 1 entries without IDs and 1 entries that are acceptable afterglow candidates for 937114_g893.
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.
Magnitude criteria will be applied later.
BAT distances are from RA=292.1790 (19:28:42.96) DEC=38.7300 (+38:43:48.0)
XRT distances are as reported in catalog file.
-----------------
Entry 13 in the list of sources is a candidate afterglow for 937114_g893 with genie
ra=292.16308 (19:28:39.14) dec=38.73915 (+38:44:20.9) +/- 0.6" mag=15.04+/-0.14
dist=55.5 REFID=10 major=0.8 minor=0.8 flag=3 (neighbor+blended)
Found 9 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
292.1648 38.7342 18.5 -1 USNO-B1 20.05 18.97 19.45
292.1674 38.7375 13.7 -1 USNO-B1 16.43 15.60 15.97
292.1629 38.7364 10.1 -1 USNO-B1 18.35 17.60 17.93
292.1660 38.7390 8.1 -1 USNO-B1 13.68 12.67 13.12
292.1672 38.7405 12.5 -1 USNO-B1 16.63 17.33 17.02
292.1640 38.7392 2.7 -1 USNO-B1 13.64 99.99 99.99 *
292.1626 38.7389 1.4 -1 USNO-B1 17.54 14.92 16.08 *
292.1660 38.7432 16.9 -1 USNO-B1 18.42 17.14 17.71
292.1641 38.7444 19.1 -1 USNO-B1 18.41 17.78 18.06
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 12 mag
There are 1.3348338E+05 counts in the bkg source region of 5283.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 25.267 counts/pixel (5-sig UL in 4" is 19.60 mag) for 937114_g893
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.59, 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: 937114_595510874_191115d11h51m04s405877usUT_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(292.1759,38.7287,45")
fk5;-circle(292.175629872088,38.7276062352398,6")
fk5;-circle(292.174449835534,38.7337857400869,6")
fk5;-circle(292.170557807887,38.7317731976468,6")
fk5;-circle(292.187228074599,38.7253651163232,6")
fk5;-circle(292.169531502196,38.7254119381574,6")
fk5;-circle(292.180444537635,38.7409393784861,6")
fk5;-circle(292.170845297236,38.7405149790487,6")
fk5;-circle(292.166109649457,38.7390912678789,6")
fk5;-circle(292.176528628396,38.7176085364794,6")
fk5;-circle(292.172144119947,38.7182382621707,6")
fk5;-circle(292.162126070941,38.7254406773605,6")
fk5;-circle(292.176546745956,38.7154864662583,6")
fk5;-circle(292.171385100692,38.7150278273395,6")
image paragraph message for exposure 2 of trigger 937114
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: partial overlap
SRCLIST PROBLEM: srclist filled telemetry buffer
See notes for more details.
------ Start for Possible Stand-alone Circular ----
In response to GRB191115 (Swift/BAT trigger 937114) at 11:26:20 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 870 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 25% of
the BAT error circle. The typical 3-sigma upper limit has been about 19.6 mag.
The 8'x8' region for the list of sources generated on-board covers 90% 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
0.19.
------- notes for trigger 937114 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 191115d11h51m05s774380usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=937114
-expid=595510874 -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/937114/
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 595510874.93402 or about 2019:319:11:41:09 UT
Found 3097 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 29% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 20 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 34 source(s) in Genie image catalog. Found 1 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 19.59 mag. Found 303 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
31% of the Genie image region.
Genie image analysis:
Found 133483.4 counts in the large background region of 5283.0 pixels or a rate
of 25.267 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 19.60 mag. for a
4-arcsec aperture. The number of srclist sources filled the available
telemetry. The weakest source detected was 18.62 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?
595510874 869 WHITE srclist found no candidates.
595510874 869 WHITE image found no candidates.
List afterglow candidates for other finding charts.
595510691 686 WHITE 292.23885 38.70053 18.83/18.7 198.8 srclist Yes
595510691 686 WHITE image found no candidates.
------- Tokens for Quick GCN -------