srclist overlap message for exposure 1 of trigger 1195887
uvot_overlap.pl vrs. 2010-12-20b fem started at 231112d01h55m42s902205usUT
The observation of trigger 1195887 started 2023-11-11T14:20:36.6
Examining file ./1195887_g196_uvot_sky_srclist.fits
The exposure ID is 721405236
The exposure time is undefined.
The filter is U.
The uvot region is centered at (290.2411,52.4470) with a roll angle of 238.9
It is square with sides of 17.13 arc min. for an area of 293.61 sq arc min
The BAT error circle is centered at (290.2340,52.4470) with a radius of 3.000 arc min
This is 0.259 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
The XRT error circle is centered at (290.1888,52.4357) with a radius of 0.038 arc min
This is 2.027 arc min from the center of the uvot region
The area of the XRT error circle is 0.005 sq. arc min
The UVOT/XRT overlap is 0.005 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 1195887
find_uvot_ag.pl vrs. 2023-04-25a fem started at 231112d01h55m44s241068usUT
Observation start time is 2023-11-11T14:20:36.6
Examining file ./1195887_g196_uvot_catalog_srclist.fits
The exposure ID is 721405236
The exposure is 237.923 sec.
The bin size is 2 pixels
The filter is U
There are 190 detected source(s) for 1195887_g196
*** WARNING -- the sources have filled the available telemetry buffer (190).
srclist_overlap returned: bat_overlap 1.000
srclist_overlap returned: xrt_overlap 1.000
Dimmest detected source in 1195887_g196 has mag 18.96
Aspect correction adds -0.00164 degrees (-0.393 sec of time = -3.59 arc sec) to RA
Aspect correction adds 0.00030 degrees ( 1.08 arcsec) to Dec
Total aspect correction is 3.75 arcsec
Star catalogs centered at 290.1970 , 52.4311 with radius 8.88 arc min.
n_usno: 2192 n_gsc: 5343
*** WARNING -- bright star catalog has 12 entries brighter than 12 mag
The brightest has mag 6.93
RA DEC Mag Color
bright star 0: 290.17233 (19:20:41.36) 52.42382 (+52:25:25.8) 11.12 GSC-F
bright star 1: 290.10464 (19:20:25.11) 52.51280 (+52:30:46.1) 9.45 GSC-F
bright star 2: 290.06732 (19:20:16.16) 52.36654 (+52:21:59.5) 10.00 GSC-F
bright star 3: 290.06863 (19:20:16.47) 52.51493 (+52:30:53.7) 10.78 USNO-V
bright star 4: 290.16965 (19:20:40.72) 52.31647 (+52:18:59.3) 11.07 GSC-F
bright star 5: 290.40048 (19:21:36.12) 52.37638 (+52:22:35.0) 6.93 GSC-V
bright star 6: 290.41133 (19:21:38.72) 52.37757 (+52:22:39.2) 9.20 USNO-R
bright star 7: 290.20248 (19:20:48.60) 52.49409 (+52:29:38.7) 11.78 GSC-F
bright star 8: 290.26865 (19:21:04.48) 52.49061 (+52:29:26.2) 11.85 GSC-F
bright star 9: 290.06750 (19:20:16.20) 52.51557 (+52:30:56.1) 9.51 GSC-F
bright star 10: 290.06488 (19:20:15.57) 52.51670 (+52:31:00.1) 11.43 GSC-F
bright star 11: 290.26654 (19:21:03.97) 52.29272 (+52:17:33.8) 11.39 GSC-F
Mean distance difference (CAT_DELTA) for 103 matched entries is 0.861" for 1195887_g196
Mean and std. dev of mag. difference (MAG_DELTA) are 2.374 and 0.973 for 1195887_g196
Found 93 entries without IDs and 3 entries that are acceptable afterglow candidates for 1195887_g196.
Acceptable entries have no ID, XRT distances < 5.75", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
29 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=290.2340 (19:20:56.16) DEC=52.4470 (+52:26:49.2)
XRT distances are from RA=290.1888 (19:20:45.32) DEC=52.4357 (+52:26:08.6)
*** WARNING 48 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1195887_g196 with 3x3 stamp
ra=290.18825 (19:20:45.18) dec=52.43632 (+52:26:10.7) +/- 1.1" mag=17.42+/-0.35
dist=2.5 REFID=45
src: 0 distr. of nearby unmatched sources: 0 0 0 0 0
Found 13 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
290.1838 52.4338 13.4 -1 USNO-B1 20.33 19.66 19.95
290.1811 52.4352 16.3 -1 USNO-B1 20.38 19.67 19.98
290.1806 52.4354 17.1 -1 USNO-B1 20.57 99.99 99.99
290.1879 52.4413 18.1 -1 USNO-B1 20.44 18.50 19.36
290.1838 52.4337 13.6 -1 GSC2.3 99.99 21.03 99.99
290.1838 52.4337 13.6 -1 GSC2.3 19.41 21.12 99.99
290.1838 52.4338 13.4 -1 GSC2.3 19.62 99.99 99.99
290.1837 52.4338 13.4 -1 GSC2.3 99.99 20.74 99.99
290.1814 52.4351 15.7 -1 GSC2.3 20.04 21.50 99.99
290.1880 52.4412 17.4 -1 GSC2.3 99.99 21.40 99.99
290.1879 52.4411 17.3 -1 GSC2.3 18.69 20.86 99.99
290.1878 52.4412 17.6 -1 GSC2.3 18.70 99.99 99.99
290.1878 52.4414 18.4 -1 GSC2.3 99.99 20.79 99.99
##### This source remains a candidate #####
It has no entries within 4" or brighter than 13 mag
-----------------
Entry 8 in the list of sources is a candidate afterglow for 1195887_g196 with 1x1 stamp
ra=290.24178 (19:20:58.03) dec=52.44911 (+52:26:56.8) +/- 1.1" mag=17.76+/-0.35
dist=125.8 REFID=108
*** The position of this source is inconsistent with the XRT position.
The position is 18.7 arc sec from the BAT position.
src: 8 distr. of nearby unmatched sources: 0 0 0 0 0
Found 15 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
290.2398 52.4446 16.7 -1 USNO-B1 20.67 19.47 20.00
290.2403 52.4492 3.2 -1 USNO-B1 15.07 14.23 14.61 *
290.2491 52.4509 17.4 -1 USNO-B1 99.99 19.32 99.99
290.2400 52.4445 17.0 -1 GSC2.3 19.43 99.99 99.99
290.2401 52.4444 17.3 -1 GSC2.3 19.43 20.95 99.99
290.2401 52.4445 17.1 -1 GSC2.3 99.99 21.63 99.99
290.2402 52.4445 16.8 -1 GSC2.3 99.99 21.06 99.99
290.2404 52.4491 3.1 -1 GSC2.3 99.99 15.42 99.99 *
290.2404 52.4491 3.0 -1 GSC2.3 14.21 14.88 14.61 *
290.2404 52.4492 3.1 -1 GSC2.3 99.99 15.39 99.99 *
290.2404 52.4492 3.1 -1 GSC2.3 14.44 99.99 99.99 *
290.2420 52.4546 19.8 -1 GSC2.3 99.99 17.64 99.99
290.2420 52.4546 19.8 -1 GSC2.3 16.33 17.23 16.97
290.2420 52.4546 19.9 -1 GSC2.3 99.99 17.55 99.99
290.2495 52.4510 18.1 -1 GSC2.3 19.37 21.96 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 35 in the list of sources is a candidate afterglow for 1195887_g196 with 1x1 stamp
ra=290.27407 (19:21:05.78) dec=52.41007 (+52:24:36.3) +/- 1.1" mag=18.79+/-0.35
dist=208.7 REFID=190
*** The position of this source is inconsistent with the XRT position.
The position is 159.4 arc sec from the BAT position.
src: 35 distr. of nearby unmatched sources: 0 0 0 0 0
Found 5 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
290.2722 52.4102 4.2 -1 USNO-B1 14.43 13.48 13.90
290.2721 52.4102 4.3 -1 GSC2.3 13.70 99.99 99.99
290.2721 52.4101 4.3 -1 GSC2.3 99.99 14.73 99.99
290.2721 52.4101 4.3 -1 GSC2.3 99.99 14.76 99.99
290.2722 52.4101 4.2 -1 GSC2.3 13.47 14.18 13.91
*** If XRT position is correct, then this is NOT the afterglow
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
Unmatched source ra=290.18825 (19:20:45.18) dec=52.43632 (+52:26:10.7) +/- 1.1" mag=17.42+/-0.35 dist=2.5 REFID=45
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 18.09, XRT distances < 5.75",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 1 good candidate(s) found.
srclist paragraph message for exposure 1 of trigger 1195887
SRCLIST PROBLEM: access to all star catalogs failed
------ Start for Possible Stand-alone Circular ----
In response to GRB231111 (Swift/BAT trigger 1195887) at 14:17:19 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 238 seconds with the U filter starting
164 seconds after the BAT trigger. There is a candidate afterglow in the
rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 19:20:45.24 = 290.18848
DEC(J2000) = +52:26:10.5 = 52.43626
with a 90%-confidence error radius of about 0.62 arc sec. This position is 2.1
arc sec. from the center of the XRT error circle. The estimated magnitude is
16.51 with a 1-sigma error of about 0.14. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.117.
------- notes for trigger 1195887 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 231112d01h55m50s549598usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1195887
-expid=721405236 -meonly -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/1195887/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
XRT position found for srclist. XRT position found for Genie image. BAT
position found.
UVOT exposure began at MET 721405236.61436 or about 2023:315:14:20:31 UT
Since the srclist star catalog filled its buffer, the sensitivity for an
afterglow may be REDUCED. The stars will eliminate afterglows from about 47%
or more of the srclist region. Found 190 sources in srclist catalog. WARNING --
srclist catalog buffer filled. Found 93 srclist source(s) without IDs. There
are 1 good candidate(s) in the srclist catalog. Good candidates must be
brighter than 18.09 mag.
Found 19 source(s) in Genie image catalog. 1 source(s) are within 10.0" of the
xrt position. Found 4 Genie image source(s) without IDs. There are 1 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.63 mag. Found 387 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 47% of the Genie image region.
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?
721405236 163 U 290.18825 52.43632 17.42/18.1 2.5 srclist Yes
721405236 163 U 290.18848 52.43626 16.51/20.6 2.1 image Yes
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: u
GRB_DEC: 52.43626
GRB_ERROR: 0.62
GRB_RA: 290.18848
IMAGE_START_TIME: 14:20:31
MAGNITUDE: 16.51
MAG_ERROR: 0.14
MESSAGE_TYPE: ACK
SOURCE: XRT