srclist overlap message for exposure 2 of trigger 912310
uvot_overlap.pl vrs. 2010-12-20b fem started at 190701d14h51m24s604778usUT
The observation of trigger 912310 started 2019-07-01T09:50:46.6
Examining file ./912310_g325_uvot_sky_srclist.fits
The exposure ID is 583667446
The exposure time is undefined.
The filter is U.
The uvot region is centered at (28.0694,58.9075) with a roll angle of 92.6
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 (28.0630,58.9060) with a radius of 3.000 arc min
This is 0.217 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 (28.0814,58.9094) with a radius of 0.032 arc min
This is 0.391 arc min from the center of the uvot region
The area of the XRT error circle is 0.003 sq. arc min
The UVOT/XRT overlap is 0.003 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 2 of trigger 912310
find_uvot_ag.pl vrs. 2017-02-17 fem started at 190701d14h52m00s941663usUT
Observation start time is 2019-07-01T09:50:46.6
Examining file ./912310_g325_uvot_catalog_srclist.fits
The exposure ID is 583667446
The exposure is 249.935 sec.
The bin size is 2 pixels
The filter is U
There are 190 detected source(s) for 912310_g325
*** 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 912310_g325 has mag 18.21
Aspect correction adds 0.00135 degrees (0.324 sec of time = 2.51 arc sec) to RA
Aspect correction adds -0.00073 degrees (-2.63 arcsec) to Dec
Total aspect correction is 3.63 arcsec
Star catalogs centered at 28.0750 , 58.9136 with radius 8.67 arc min.
n_usno: 2876 n_gsc: 0
*** WARNING -- bright star catalog has 7 entries brighter than 12 mag
The brightest has mag 10.09488
RA DEC Mag Color
bright star 0: 28.12400 (01:52:29.76) 58.87353 (+58:52:24.7) 10.09 USNO-V
bright star 1: 28.07075 (01:52:16.98) 58.86553 (+58:51:55.9) 11.99 USNO-V
bright star 2: 27.98276 (01:51:55.86) 58.85101 (+58:51:03.7) 11.99 USNO-V
bright star 3: 28.07724 (01:52:18.54) 58.82005 (+58:49:12.2) 11.94 USNO-V
bright star 4: 28.14717 (01:52:35.32) 59.03227 (+59:01:56.2) 11.81 USNO-V
bright star 5: 27.95511 (01:51:49.23) 58.80344 (+58:48:12.4) 11.08 USNO-V
bright star 6: 27.84568 (01:51:22.96) 58.86800 (+58:52:04.8) 11.25 USNO-V
Mean distance difference (CAT_DELTA) for 179 matched entries is 0.709" for 912310_g325
Mean and std. dev of mag. difference (MAG_DELTA) are 1.573 and 0.737 for 912310_g325
Found 12 entries without IDs and 5 entries that are acceptable afterglow candidates for 912310_g325.
Acceptable entries have no ID, XRT distances < 5", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
4 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=28.0630 (01:52:15.12) DEC=58.9060 (+58:54:21.6)
XRT distances are from RA=28.0814 (01:52:19.54) DEC=58.9094 (+58:54:33.9)
-----------------
Entry 13 in the list of sources is a candidate afterglow for 912310_g325 with 3x3 stamp
ra=28.08276 (01:52:19.86) dec=58.94228 (+58:56:32.2) +/- 1.1" mag=15.60+/-0.35
dist=118.3 REFID=23
*** The position of this source is inconsistent with the XRT position.
The position is 135.7 arc sec from the BAT position.
src: 13 distr. of nearby unmatched sources: 2 1 0 0 0
Found 2 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
28.0759 58.9385 18.6 -1 USNO-B1 20.20 17.51 18.71
28.0822 58.9430 2.7 -1 USNO-B1 14.08 12.39 13.14 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 14 in the list of sources is a candidate afterglow for 912310_g325 with 1x1 stamp
ra=28.08407 (01:52:20.18) dec=58.94236 (+58:56:32.5) +/- 1.1" mag=17.36+/-0.35
dist=118.7 REFID=142
*** The position of this source is inconsistent with the XRT position.
The position is 136.6 arc sec from the BAT position.
src: 14 distr. of nearby unmatched sources: 2 1 0 0 0
Found 3 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
28.0822 58.9430 4.1 -1 USNO-B1 14.08 12.39 13.14 *
28.0940 58.9423 18.4 -1 USNO-B1 20.03 17.74 18.76
28.0940 58.9434 18.9 -1 USNO-B1 20.36 17.93 19.01
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 16 in the list of sources is a candidate afterglow for 912310_g325 with 1x1 stamp
ra=28.13846 (01:52:33.23) dec=58.90739 (+58:54:26.6) +/- 1.1" mag=18.04+/-0.35
dist=106.3 REFID=166
*** The position of this source is inconsistent with the XRT position.
The position is 140.4 arc sec from the BAT position.
src: 16 distr. of nearby unmatched sources: 1 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
28.1345 58.9087 8.9 -1 USNO-B1 19.57 17.49 18.42
28.1360 58.9066 5.4 -1 USNO-B1 15.78 99.99 99.99
28.1365 58.9069 4.1 -1 USNO-B1 15.44 13.62 14.43
28.1412 58.9110 14.0 -1 USNO-B1 18.89 17.15 17.92
28.1468 58.9090 16.5 -1 USNO-B1 19.91 17.92 18.81
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 18 in the list of sources is a candidate afterglow for 912310_g325 with 1x1 stamp
ra=28.08140 (01:52:19.54) dec=58.94398 (+58:56:38.3) +/- 1.1" mag=17.09+/-0.35
dist=124.4 REFID=107
*** The position of this source is inconsistent with the XRT position.
The position is 140.9 arc sec from the BAT position.
src: 18 distr. of nearby unmatched sources: 1 2 0 0 0
Found 1 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
28.0822 58.9430 3.9 -1 USNO-B1 14.08 12.39 13.14 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 25 in the list of sources is a candidate afterglow for 912310_g325 with 3x3 stamp
ra=28.04688 (01:52:11.25) dec=58.86402 (+58:51:50.5) +/- 1.1" mag=17.25+/-0.35
dist=175.6 REFID=62
*** The position of this source is inconsistent with the XRT position.
The position is 154.1 arc sec from the BAT position.
src: 25 distr. of nearby unmatched sources: 1 0 0 0 0
Found 7 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
28.0529 58.8673 16.3 -1 USNO-B1 20.18 18.41 19.20
28.0446 58.8658 7.8 -1 USNO-B1 20.12 18.53 19.24
28.0517 58.8646 9.3 -1 USNO-B1 20.55 18.45 19.38
28.0458 58.8643 2.4 -1 USNO-B1 15.61 14.00 14.71 *
28.0551 58.8630 15.6 -1 USNO-B1 16.84 15.11 15.88
28.0417 58.8634 10.0 -1 USNO-B1 15.99 14.62 15.23
28.0388 58.8628 15.7 -1 USNO-B1 15.29 15.48 15.40
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Found 1 entries in star catalog(s) within 10" of the XRT position.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
28.0813 58.9076 6.7 -1 USNO-B1 20.43 18.73 19.48
The closest star is 6.69" away.
List UVOT sources within 10" of the XRT position:
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 18.12, XRT distances < 5",
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 2 of trigger 912310
SRCLIST PROBLEM: srclist filled telemetry buffer
WARNING -- because of the LARGE EXTINCTION, results should be used cautiously.
------ Start for Possible Stand-alone Circular ----
In response to GRB190701 (Swift/BAT trigger 912310) at 09:45:20 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 250 seconds with the U filter starting
302 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 100% of the
XRT error circle. The typical 3-sigma upper limit has been about 19.2 mag. The
8'x8' region for the list of sources generated on-board covers 100% of the XRT
error circle. The list of sources is typically complete to about 18.0 mag. No
correction has been made for the large, but uncertain, extinction expected.
------- notes for trigger 912310 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 190701d14h52m11s482267usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=912310
-expid=583667446 -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/912310/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
Unreliable extinction found for xrt position. XRT position found for srclist.
XRT position found for Genie image. BAT position found.
UVOT exposure began at MET 583667446.61796 or about 2019:182:09:50:41 UT
Found 2872 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 26% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 12 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 18.12 mag.
Found 14 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 19.94 mag. Found 295 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
28% of the Genie image region.
Genie image analysis:
Found 43036.6 counts in the large background region of 5845.0 pixels or a rate
of 7.363 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 19.42 mag. for a
4-arcsec aperture.
Found 1560.2 counts in the XRT position region of 205.0 pixels or a rate of
7.611 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is 0.197 +/- 0.171 (1-sigma) cps or
20.15 mag and a range from 19.47 to 22.36 mag. The 3-sigma UL at the XRT
position is 0.710 cps or 18.75 mag. The number of srclist sources filled the
available telemetry. The weakest source detected was 18.21 mag. The closest
srclist source has ra= 28.0809 dec= 58.9127 mag=17.70 sep=11.77". The closest
Genie source has ra= 28.0810 dec= 58.9125 mag=17.54 sep=11.21".
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?
583667446 302 U srclist found no candidates.
583667446 302 U image found no candidates.
List afterglow candidates for other finding charts.
583667288 144 WHITE srclist found no candidates.
583667288 144 WHITE image found no candidates.
583668023 879 WHITE srclist found no candidates.
583668023 879 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: u
GRB_DEC: 58.90942
GRB_ERROR: 5
GRB_RA: 28.08142
IMAGE_START_TIME: 09:50:41
MAGNITUDE: 18.8
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT