srclist overlap message for exposure 1 of trigger 619182
uvot_overlap.pl vrs. 2010-12-20b fem started at 250909d16h09m08s648649usUT
The observation of trigger 619182 started 2014-11-21T03:57:06.7
Examining file 619182_g382_uvot_sky_srclist.fits
The exposure ID is 438235026
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (122.6704,22.2257) with a roll angle of 101.2
It is square with sides of 8.03 arc min. for an area of 64.51 sq arc min
The BAT error circle is centered at (122.6646,22.2063) with a radius of 2.100 arc min
This is 1.209 arc min from the center of the uvot region
The area of the BAT error circle is 13.85 sq. arc min
The UVOT/BAT overlap is 13.85 sq. arc min or 1.00 of the BAT error circle
The XRT error circle is centered at (122.6695,22.2174) with a radius of 0.025 arc min
This is 0.497 arc min from the center of the uvot region
The area of the XRT error circle is 0.002 sq. arc min
The UVOT/XRT overlap is 0.002 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 619182
find_uvot_ag.pl vrs. 2023-04-25a fem started at 250909d16h09m12s832719usUT
Observation start time is 2014-11-21T03:57:06.7
Examining file 619182_g382_uvot_catalog_srclist.fits
The exposure ID is 438235026
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 39 detected source(s) for 619182_g382
Aspect correction adds 0.00030 degrees (0.071 sec of time = 0.99 arc sec) to RA
Aspect correction adds -0.00084 degrees (-3.02 arcsec) to Dec
Total aspect correction is 3.18 arcsec
Star catalogs centered at 122.6631 , 22.2209 with radius 5.16 arc min.
n_usno: 288 n_gsc: 249
*** WARNING -- bright star catalog has 2 entries brighter than 12 mag
The brightest has mag 10.5102
RA DEC Mag Color
bright star 0: 122.66386 (08:10:39.33) 22.15582 (+22:09:20.9) 10.51 USNO-V
bright star 1: 122.67628 (08:10:42.31) 22.28605 (+22:17:09.8) 10.62 GSC-V
Mean distance difference (CAT_DELTA) for 29 matched entries is 0.681" for 619182_g382
Mean and std. dev of mag. difference (MAG_DELTA) are 1.764 and 0.974 for 619182_g382
Found 12 entries without IDs and 3 entries that are acceptable afterglow candidates for 619182_g382.
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.
7 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=122.6646 (08:10:39.50) DEC=22.2063 (+22:12:22.5)
XRT distances are from RA=122.6695 (08:10:40.67) DEC=22.2174 (+22:13:02.7)
*** WARNING 30 per cent of entries have no IDs.
-----------------
Entry 1 in the list of sources is a candidate afterglow for 619182_g382 with 5x5 stamp
ra=122.67320 (08:10:41.57) dec=22.23793 (+22:14:16.5) +/- 1.1" mag=19.04+/-0.35
dist=74.9 REFID=33
*** The position of this source is inconsistent with the XRT position.
The position is 49.6 arc sec from the BAT position.
src: 1 distr. of nearby unmatched sources: 0 0 0 0 0
Found 0 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)
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 4 in the list of sources is a candidate afterglow for 619182_g382 with 5x5 stamp
ra=122.64687 (08:10:35.25) dec=22.23056 (+22:13:50.0) +/- 1.1" mag=19.07+/-0.35
dist=88.9 REFID=35
*** The position of this source is inconsistent with the XRT position.
The position is 73.2 arc sec from the BAT position.
src: 4 distr. of nearby unmatched sources: 0 0 0 0 0
Found 0 entries in star catalog(s) within 20.0" of the candidate.
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 18 in the list of sources is a candidate afterglow for 619182_g382 with 5x5 stamp
ra=122.64741 (08:10:35.38) dec=22.27186 (+22:16:18.7) +/- 1.1" mag=18.91+/-0.35
dist=209.3 REFID=32
*** The position of this source is inconsistent with the XRT position.
The position is 182.1 arc sec from the BAT position.
src: 18 distr. of nearby unmatched sources: 0 0 0 0 0
Found 6 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
122.6483 22.2722 3.2 -1 USNO-B1 18.23 16.98 17.54 *
122.6503 22.2737 11.6 -1 USNO-B1 17.18 19.41 18.42
122.6513 22.2741 15.3 -1 USNO-B1 17.27 15.87 16.49
122.6483 22.2721 3.1 -1 GSC2.3 17.47 18.42 17.66 *
122.6512 22.2740 14.8 -1 GSC2.3 16.42 17.66 17.07
122.6518 22.2742 16.8 -1 GSC2.3 99.99 99.99 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
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.22, 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 1 of trigger 619182
------ Start for Possible Stand-alone Circular ----
In response to GRB141121 (Swift/BAT trigger 619182) at 03:50:43 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 370 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 19.6 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 mag. No
correction has been made for the expected extinction corresponding to E(B-V) of
0.05.
------- notes for trigger 619182 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 250909d16h09m16s076176usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=619182
-expid=438235026 -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/619182/
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 438235026.73394 or about 2014:325:03:57:03 UT
Found 284 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 7% of the srclist region. Found 39 sources in
srclist catalog. Found 12 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
19.22 mag.
Found 3 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 19.90 mag. Found 38 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 4% of the
Genie image region.
Genie image analysis:
Found 248226.3 counts in the large background region of 6190.0 pixels or a rate
of 40.101 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 19.22 mag. for a
4-arcsec aperture.
Found 7970.8 counts in the XRT position region of 201.0 pixels or a rate of
39.656 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is -0.638 +/- 0.642 (1-sigma) cps. The
3-sigma UL at the XRT position is 1.926 cps or 18.94 mag. The closest srclist
source has ra= 122.6746 dec= 22.2254 mag=17.81 sep=33.59". The closest Genie
source has ra= 122.6747 dec= 22.2255 mag=17.60 sep=33.85".
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?
438235026 370 WHITE srclist found no candidates.
438235026 370 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 22.21742
GRB_ERROR: 5
GRB_RA: 122.66946
IMAGE_START_TIME: 03:57:03
MAGNITUDE: 18.9
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT