srclist overlap message for exposure 1 of trigger 1258721
uvot_overlap.pl vrs. 2010-12-20b fem started at 241007d02h19m18s824091usUT
The observation of trigger 1258721 started 2024-10-06T21:58:22.1
Examining file ./1258721_g383_uvot_sky_srclist.fits
The exposure ID is 749944702
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (304.7856,-40.7991) with a roll angle of 251.2
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 (304.7940,-40.7960) with a radius of 3.000 arc min
This is 0.423 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 (304.7426,-40.8050) with a radius of 0.037 arc min
This is 1.985 arc min from the center of the uvot region
The area of the XRT error circle is 0.004 sq. arc min
The UVOT/XRT overlap is 0.004 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 1258721
find_uvot_ag.pl vrs. 2023-04-25a fem started at 241007d02h19m20s117479usUT
Observation start time is 2024-10-06T21:58:22.1
Examining file ./1258721_g383_uvot_catalog_srclist.fits
The exposure ID is 749944702
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 138 detected source(s) for 1258721_g383
Aspect correction adds -0.00104 degrees (-0.250 sec of time = -2.84 arc sec) to RA
Aspect correction adds -0.00023 degrees (-0.81 arcsec) to Dec
Total aspect correction is 2.95 arcsec
Star catalogs centered at 304.7682 , -40.8008 with radius 6.61 arc min.
n_usno: 543 n_gsc: 669
*** WARNING -- bright star catalog has 2 entries brighter than 12 mag
The brightest has mag 10.91584
RA DEC Mag Color
bright star 0: 304.83775 (20:19:21.06) -40.76454 (-40:45:52.3) 10.92 USNO-V
bright star 1: 304.69226 (20:18:46.14) -40.85068 (-40:51:02.5) 11.93 GSC-F
Mean distance difference (CAT_DELTA) for 94 matched entries is 0.718" for 1258721_g383
Mean and std. dev of mag. difference (MAG_DELTA) are 1.479 and 0.991 for 1258721_g383
Found 45 entries without IDs and 8 entries that are acceptable afterglow candidates for 1258721_g383.
Acceptable entries have no ID, XRT distances < 5.5", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
34 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=304.7940 (20:19:10.56) DEC=-40.7960 (-40:47:45.6)
XRT distances are from RA=304.7426 (20:18:58.23) DEC=-40.8050 (-40:48:18.0)
*** WARNING 32 per cent of entries have no IDs.
-----------------
Entry 29 in the list of sources is a candidate afterglow for 1258721_g383 with 3x3 stamp
ra=304.75343 (20:19:00.82) dec=-40.76958 (-40:46:10.5) +/- 1.1" mag=19.55+/-0.35
dist=130.9 REFID=76
*** The position of this source is inconsistent with the XRT position.
The position is 145.9 arc sec from the BAT position.
src: 29 distr. of nearby unmatched sources: 0 0 0 0 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
304.7522 -40.7740 16.1 -1 USNO-B1 19.40 18.57 18.94
304.7537 -40.7702 2.2 -1 USNO-B1 14.29 14.68 14.50 *
304.7521 -40.7740 16.4 -1 GSC2.3 18.35 19.25 99.99
304.7536 -40.7702 2.3 -1 GSC2.3 15.30 14.83 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 41 in the list of sources is a candidate afterglow for 1258721_g383 with 3x3 stamp
ra=304.77253 (20:19:05.41) dec=-40.76500 (-40:45:54.0) +/- 1.1" mag=18.70+/-0.35
dist=165.5 REFID=47
*** The position of this source is inconsistent with the XRT position.
The position is 126.0 arc sec from the BAT position.
src: 41 srclist_match has ID
src: 41 distr. of nearby unmatched sources: 1 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
304.7749 -40.7689 15.5 -1 USNO-B1 19.20 17.55 18.28
304.7730 -40.7649 1.3 -1 USNO-B1 18.15 16.79 17.39 *
304.7749 -40.7690 15.9 -1 GSC2.3 17.63 18.76 99.99
304.7728 -40.7650 0.6 -1 GSC2.3 17.06 17.82 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 59 in the list of sources is a candidate afterglow for 1258721_g383 with 3x3 stamp
ra=304.81299 (20:19:15.12) dec=-40.83764 (-40:50:15.5) +/- 1.1" mag=20.40+/-0.35
dist=224.8 REFID=137
*** The position of this source is inconsistent with the XRT position.
The position is 158.6 arc sec from the BAT position.
src: 59 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 69 in the list of sources is a candidate afterglow for 1258721_g383 with 3x3 stamp
ra=304.83709 (20:19:20.90) dec=-40.78418 (-40:47:03.0) +/- 1.1" mag=19.81+/-0.35
dist=268.2 REFID=107
*** The position of this source is inconsistent with the XRT position.
The position is 124.9 arc sec from the BAT position.
src: 69 distr. of nearby unmatched sources: 0 0 1 1 1
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
304.8401 -40.7854 9.4 -1 USNO-B1 12.34 11.91 12.10 *
304.8401 -40.7854 9.4 -1 GSC2.3 99.99 99.99 12.12 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 74 in the list of sources is a candidate afterglow for 1258721_g383 with 3x3 stamp
ra=304.84155 (20:19:21.97) dec=-40.78313 (-40:46:59.3) +/- 1.1" mag=19.51+/-0.35
dist=280.9 REFID=85
*** The position of this source is inconsistent with the XRT position.
The position is 137.6 arc sec from the BAT position.
src: 74 distr. of nearby unmatched sources: 1 0 2 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
304.8401 -40.7854 9.0 -1 USNO-B1 12.34 11.91 12.10 *
304.8462 -40.7801 16.9 -1 USNO-B1 16.70 15.19 15.86
304.8401 -40.7854 9.0 -1 GSC2.3 99.99 99.99 12.12 *
304.8461 -40.7801 16.7 -1 GSC2.3 15.34 16.91 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 78 in the list of sources is a candidate afterglow for 1258721_g383 with 3x3 stamp
ra=304.84257 (20:19:22.22) dec=-40.78199 (-40:46:55.2) +/- 1.1" mag=19.93+/-0.35
dist=284.7 REFID=120
*** The position of this source is inconsistent with the XRT position.
The position is 141.7 arc sec from the BAT position.
src: 78 distr. of nearby unmatched sources: 1 0 1 1 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
304.8401 -40.7854 13.9 -1 USNO-B1 12.34 11.91 12.10 *
304.8462 -40.7801 12.2 -1 USNO-B1 16.70 15.19 15.86
304.8487 -40.7811 17.2 -1 USNO-B1 17.78 16.35 16.98
304.8401 -40.7854 13.9 -1 GSC2.3 99.99 99.99 12.12 *
304.8461 -40.7801 11.9 -1 GSC2.3 15.34 16.91 99.99
304.8487 -40.7812 17.0 -1 GSC2.3 16.79 17.84 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 81 in the list of sources is a candidate afterglow for 1258721_g383 with 3x3 stamp
ra=304.84433 (20:19:22.64) dec=-40.78592 (-40:47:09.3) +/- 1.1" mag=20.03+/-0.35
dist=285.6 REFID=133
*** The position of this source is inconsistent with the XRT position.
The position is 141.9 arc sec from the BAT position.
src: 81 distr. of nearby unmatched sources: 0 0 2 0 1
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
304.8401 -40.7854 11.6 -1 USNO-B1 12.34 11.91 12.10 *
304.8401 -40.7854 11.6 -1 GSC2.3 99.99 99.99 12.12 *
304.8419 -40.7905 17.7 -1 GSC2.3 19.67 21.63 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 119 in the list of sources is a candidate afterglow for 1258721_g383 with 3x3 stamp
ra=304.83699 (20:19:20.88) dec=-40.75389 (-40:45:14.0) +/- 1.1" mag=19.55+/-0.35
dist=316.3 REFID=104
*** The position of this source is inconsistent with the XRT position.
The position is 191.6 arc sec from the BAT position.
src: 119 distr. of nearby unmatched sources: 0 0 0 0 3
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
304.8373 -40.7547 3.0 -1 USNO-B1 17.19 16.74 16.94 *
304.8406 -40.7518 12.4 -1 USNO-B1 14.77 13.71 14.18
304.8297 -40.7545 20.0 -1 GSC2.3 99.99 21.66 99.99
304.8378 -40.7585 16.8 -1 GSC2.3 99.99 20.28 99.99
304.8369 -40.7546 2.7 -1 GSC2.3 16.82 17.60 99.99 *
304.8405 -40.7518 12.4 -1 GSC2.3 13.84 14.81 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 < 5.5",
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 1258721
IMAGE PROBLEM: no overlap
------ Start for Possible Stand-alone Circular ----
In response to GRB241006 (Swift/BAT trigger 1258721) at 21:51:58 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 349 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 none of
the XRT error circle. 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 0.065.
------- notes for trigger 1258721 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 241007d02h19m23s097671usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1258721
-expid=749944702 -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/1258721/
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 749944702.09014 or about 2024:280:21:58:17 UT
Found 666 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 10% of the srclist region. Found 138 sources in
srclist catalog. Found 45 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 16 source(s) in Genie image catalog. Found 1 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 20.67 mag. Found 153 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
11% of the Genie image region.
Genie image analysis:
Found 59568.4 counts in the large background region of 6080.0 pixels or a rate
of 9.797 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 19.94 mag. for a
4-arcsec aperture. The closest srclist source has ra= 304.7502 dec= -40.7975
mag=18.55 sep=33.83". The closest Genie source has ra= 304.7556 dec= -40.8059
mag=20.99 sep=35.56".
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?
749944702 349 WHITE srclist found no candidates.
749944702 349 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: -40.80500
GRB_ERROR: 5.5
GRB_RA: 304.74263
IMAGE_START_TIME: 21:58:17
MAGNITUDE: 18.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT