srclist overlap message for exposure 1 of trigger 1404126
uvot_overlap.pl vrs. 2010-12-20b fem started at 251015d08h14m17s235293usUT
The observation of trigger 1404126 started 2025-10-14T21:57:57.1
Examining file ./1404126_g196_uvot_sky_srclist.fits
The exposure ID is 782171877
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (323.9081,-41.8437) with a roll angle of 239.9
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 (323.9120,-41.8460) with a radius of 3.000 arc min
This is 0.220 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 (323.9208,-41.8553) with a radius of 0.058 arc min
This is 0.897 arc min from the center of the uvot region
The area of the XRT error circle is 0.011 sq. arc min
The UVOT/XRT overlap is 0.011 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 1404126
find_uvot_ag.pl vrs. 2023-04-25a fem started at 251015d08h14m19s473443usUT
Observation start time is 2025-10-14T21:57:57.1
Examining file ./1404126_g196_uvot_catalog_srclist.fits
The exposure ID is 782171877
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 102 detected source(s) for 1404126_g196
Aspect correction adds -0.00136 degrees (-0.325 sec of time = -3.64 arc sec) to RA
Aspect correction adds -0.00034 degrees (-1.21 arcsec) to Dec
Total aspect correction is 3.83 arcsec
Star catalogs centered at 323.9089 , -41.8457 with radius 6.52 arc min.
n_usno: 519 n_gsc: 484
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 10.07222
RA DEC Mag Color
bright star 0: 323.88732 (21:35:32.96) -41.89010 (-41:53:24.4) 10.07 USNO-V
Mean distance difference (CAT_DELTA) for 38 matched entries is 0.725" for 1404126_g196
Mean and std. dev of mag. difference (MAG_DELTA) are 1.508 and 0.796 for 1404126_g196
Found 64 entries without IDs and 4 entries that are acceptable afterglow candidates for 1404126_g196.
Acceptable entries have no ID, XRT distances < 8.75", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
60 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=323.9120 (21:35:38.88) DEC=-41.8460 (-41:50:45.6)
XRT distances are from RA=323.9208 (21:35:40.99) DEC=-41.8553 (-41:51:19.2)
*** WARNING 62 per cent of entries have no IDs.
-----------------
Entry 7 in the list of sources is a candidate afterglow for 1404126_g196 with 3x3 stamp
ra=323.95717 (21:35:49.72) dec=-41.86351 (-41:51:48.6) +/- 1.1" mag=20.22+/-0.35
dist=101.9 REFID=100
*** The position of this source is inconsistent with the XRT position.
The position is 136.5 arc sec from the BAT position.
src: 7 distr. of nearby unmatched sources: 0 0 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
323.9570 -41.8641 2.2 -1 USNO-B1 18.49 17.42 17.90 *
323.9569 -41.8641 2.3 -1 GSC2.3 17.69 18.56 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 39 in the list of sources is a candidate afterglow for 1404126_g196 with 3x3 stamp
ra=323.97414 (21:35:53.79) dec=-41.85235 (-41:51:08.4) +/- 1.1" mag=20.18+/-0.35
dist=143.5 REFID=98
*** The position of this source is inconsistent with the XRT position.
The position is 168.2 arc sec from the BAT position.
src: 39 distr. of nearby unmatched sources: 0 0 0 0 0
Found 4 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
323.9730 -41.8526 3.0 -1 USNO-B1 99.99 20.54 99.99 *
323.9740 -41.8535 4.3 -1 USNO-B1 13.37 12.84 13.08 *
323.9746 -41.8542 6.7 -1 USNO-B1 20.70 19.76 20.18
323.9739 -41.8536 4.5 -1 GSC2.3 14.28 13.72 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 60 in the list of sources is a candidate afterglow for 1404126_g196 with 3x3 stamp
ra=323.89553 (21:35:34.93) dec=-41.79812 (-41:47:53.2) +/- 1.1" mag=19.57+/-0.35
dist=216.8 REFID=73
*** The position of this source is inconsistent with the XRT position.
The position is 177.9 arc sec from the BAT position.
src: 60 srclist_match has ID
src: 60 distr. of nearby unmatched sources: 0 0 0 0 0
Found 2 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
323.8952 -41.7986 2.0 -1 USNO-B1 18.30 17.39 17.79 *
323.8951 -41.7985 1.8 -1 GSC2.3 17.59 18.46 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 62 in the list of sources is a candidate afterglow for 1404126_g196 with 3x3 stamp
ra=323.91090 (21:35:38.62) dec=-41.89642 (-41:53:47.1) +/- 1.1" mag=20.31+/-0.35
dist=150.3 REFID=101
*** The position of this source is inconsistent with the XRT position.
The position is 181.5 arc sec from the BAT position.
src: 62 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
323.9111 -41.8958 2.3 -1 USNO-B1 20.44 20.35 20.39 *
323.9111 -41.8984 7.1 -1 USNO-B1 13.39 12.45 12.86 *
323.9150 -41.8985 13.4 -1 USNO-B1 20.70 19.66 20.12
323.9104 -41.8935 10.6 -1 GSC2.3 20.61 99.99 99.99
323.9110 -41.8985 7.4 -1 GSC2.3 12.54 13.34 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 2 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
323.9207 -41.8528 9.3 -1 USNO-B1 20.65 20.99 20.84
323.9205 -41.8528 9.1 -1 GSC2.3 20.24 22.22 99.99
The closest star is 9.11" away.
List UVOT sources within 10" of the XRT position:
There are no candidates inside BAT error circle, but outside XRT error circle.
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.22, XRT distances < 8.75",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: /Home/eud/uvot_tdrss/swift/uvot_gcn/src_1404126_XRT.reg
# Region file format: DS9 version 3.0
# find_uvot_ag.pl vrs. 2023-04-25a fem XRT
global font="helvetica 12 bold" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source=1
fk5;circle(323.92079,-41.85533,3.50") # color=red dash=0
point(323.91943,-41.85567) # point=diamond 10 color=red width=2
srclist paragraph message for exposure 1 of trigger 1404126
------ Start for Possible Stand-alone Circular ----
In response to GRB251014 (Swift/BAT trigger 1404126) at 21:54:04 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 196 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
0.020.
------- notes for trigger 1404126 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 251015d08h14m23s544880usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1404126
-expid=782171877 -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/1404126/
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 782171877.09464 or about 2025:288:21:57:52 UT
Found 515 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 8% of the srclist region. Found 102 sources in
srclist catalog. Found 64 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 20.78 mag. Found 46 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 5% of the
Genie image region. The Genie image is INCOMPLETE with 3304 null pixels.
Genie image analysis:
Found 48082.1 counts in the large background region of 6052.0 pixels or a rate
of 7.945 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 20.05 mag. for a
4-arcsec aperture.
Found 1603.7 counts in the XRT position region of 200.0 pixels or a rate of
8.018 counts/pixel in a radius of 8.0 arcsec. The net count rate (using large
background region) at the XRT position is 0.098 +/- 0.271 (1-sigma) cps or
22.12 mag and a range from 20.69 to 99.99 mag. The 3-sigma UL at the XRT
position is 0.912 cps or 19.70 mag. The closest srclist source has ra= 323.9024
dec= -41.8558 mag=16.40 sep=49.24". The closest Genie source has ra= 323.9027
dec= -41.8555 mag=16.05 sep=48.61".
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?
782171877 196 WHITE srclist found no candidates.
782171877 196 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: -41.85533
GRB_ERROR: 8.75
GRB_RA: 323.92079
IMAGE_START_TIME: 21:57:52
MAGNITUDE: 19.7
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT