srclist overlap message for exposure 1 of trigger 1440319
uvot_overlap.pl vrs. 2010-12-20b fem started at 260114d12h01m00s889787usUT
The observation of trigger 1440319 started 2026-01-14T11:43:09.2
Examining file ./1440319_g163_uvot_sky_srclist.fits
The exposure ID is 790083789
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (74.5957,-7.9981) with a roll angle of 233.6
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 (74.6020,-7.9940) with a radius of 3.000 arc min
This is 0.448 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 (74.5979,-8.0144) with a radius of 0.053 arc min
This is 0.989 arc min from the center of the uvot region
The area of the XRT error circle is 0.009 sq. arc min
The UVOT/XRT overlap is 0.009 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 1440319
find_uvot_ag.pl vrs. 2023-04-25a fem started at 260114d12h01m03s930764usUT
Observation start time is 2026-01-14T11:43:09.2
Examining file ./1440319_g163_uvot_catalog_srclist.fits
The exposure ID is 790083789
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 111 detected source(s) for 1440319_g163
Aspect correction adds -0.00154 degrees (-0.370 sec of time = -5.49 arc sec) to RA
Aspect correction adds 0.00008 degrees ( 0.29 arcsec) to Dec
Total aspect correction is 5.50 arcsec
Star catalogs centered at 74.5964 , -7.9975 with radius 6.32 arc min.
n_usno: 444 n_gsc: 401
*** WARNING -- bright star catalog has 4 entries brighter than 12 mag
The brightest has mag 8.76264
RA DEC Mag Color
bright star 0: 74.59614 (04:58:23.07) -7.96345 (-07:57:48.4) 11.76 USNO-V
bright star 1: 74.63305 (04:58:31.93) -7.93293 (-07:55:58.5) 9.71 USNO-V
bright star 2: 74.60764 (04:58:25.83) -8.07851 (-08:04:42.6) 10.93 USNO-V
bright star 3: 74.64869 (04:58:35.69) -7.91442 (-07:54:51.9) 8.76 USNO-V
Mean distance difference (CAT_DELTA) for 44 matched entries is 0.649" for 1440319_g163
Mean and std. dev of mag. difference (MAG_DELTA) are 1.786 and 1.463 for 1440319_g163
Found 67 entries without IDs and 1 entries that are acceptable afterglow candidates for 1440319_g163.
Acceptable entries have no ID, XRT distances < 8", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
65 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=74.6020 (04:58:24.48) DEC=-7.9940 (-07:59:38.4)
XRT distances are from RA=74.5979 (04:58:23.49) DEC=-8.0144 (-08:00:51.9)
*** WARNING 60 per cent of entries have no IDs.
-----------------
Entry 12 in the list of sources is a candidate afterglow for 1440319_g163 with 3x3 stamp
ra=74.59106 (04:58:21.86) dec=-7.95912 (-07:57:32.8) +/- 1.1" mag=20.31+/-0.35
dist=200.6 REFID=107
*** The position of this source is inconsistent with the XRT position.
The position is 131.5 arc sec from the BAT position.
src: 12 distr. of nearby unmatched sources: 0 0 0 1 0
Found 4 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
74.5911 -7.9639 17.2 -1 USNO-B1 19.93 19.90 19.91
74.5928 -7.9635 17.0 -1 USNO-B1 20.63 99.99 99.99
74.5886 -7.9640 19.7 -1 USNO-B1 21.58 19.76 20.57
74.5960 -7.9590 17.7 -1 USNO-B1 20.46 20.86 20.68
*** 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:
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.22, XRT distances < 8",
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 1440319
------ Start for Possible Stand-alone Circular ----
In response to GRB260114 (Swift/BAT trigger 1440319) at 11:40:25 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 126 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
0.080.
------- notes for trigger 1440319 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 260114d12h01m06s255188usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1440319
-expid=790083789 -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/1440319/
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 790083789.24784 or about 0000:11702:11:43:13 UT
Found 440 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 7% of the srclist region. Found 111 sources in
srclist catalog. Found 67 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 6 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 20.80 mag. Found 34 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 48365.1 counts in the large background region of 6271.0 pixels or a rate
of 7.713 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 20.07 mag. for a
4-arcsec aperture.
Found 1678.3 counts in the XRT position region of 208.0 pixels or a rate of
8.069 counts/pixel in a radius of 8.0 arcsec. The net count rate (using large
background region) at the XRT position is 0.494 +/- 0.277 (1-sigma) cps or
20.37 mag and a range from 19.89 to 21.27 mag. The 3-sigma UL at the XRT
position is 1.326 cps or 19.30 mag. The closest srclist source has ra= 74.5900
dec= -8.0124 mag=17.59 sep=28.98". The closest Genie source has ra= 74.5900
dec= -8.0123 mag=17.00 sep=29.13".
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?
790083789 125 WHITE srclist found no candidates.
790083789 125 WHITE image found no candidates.
List afterglow candidates for other finding charts.
790084001 337 U srclist found no candidates.
790084001 337 U image found no candidates.
790084530 866 WHITE srclist found no candidates.
790084530 866 ? image data are not available.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: -8.01442
GRB_ERROR: 8
GRB_RA: 74.59788
MAGNITUDE: 19.3
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT