image overlap message for exposure 3 of trigger 1297832
uvot_overlap.pl vrs. 2010-12-20b fem started at 250322d21h39m35s357530usUT
The observation of trigger 1297832 started 2025-03-22T16:21:16.8
Examining file ./1297832_g903_uvot_sky_image.fits
The exposure ID is 764353276
The exposure time is 149.868 (seconds)
The filter is WHITE.
The uvot region is centered at (106.7256,7.1986) with a roll angle of 272.8
It is square with sides of 2.68 arc min. for an area of 7.17 sq arc min
The BAT error circle is centered at (106.7340,7.1990) with a radius of 3.000 arc min
This is 0.499 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 7.17 sq. arc min or 0.25 of the BAT error circle
The XRT error circle is centered at (106.7605,7.1931) with a radius of 0.043 arc min
This is 2.101 arc min from the center of the uvot region
The area of the XRT error circle is 0.006 sq. arc min
The UVOT/XRT overlap is 0.000 sq. arc min or 0.00 of the XRT error circle
image afterglow message for exposure 3 of trigger 1297832
find_uvot_ag.pl vrs. 2023-04-25a fem started at 250322d21h40m05s687461usUT
Observation start time is 2025-03-22T16:21:16.8
Examining file ./1297832_g903_uvot_catalog_image.fits
The exposure ID is 764353276
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 37 detected source(s) for 1297832_g903
Aspect correction adds -0.00135 degrees (-0.324 sec of time = -4.82 arc sec) to RA
Aspect correction adds 0.00007 degrees ( 0.25 arcsec) to Dec
Total aspect correction is 4.83 arcsec
Star catalogs centered at 106.7264 , 7.1996 with radius 2.67 arc min.
n_usno: 229 n_gsc: 238
*** WARNING -- bright star catalog has 2 entries brighter than 12 mag
The brightest has mag 11.23964
RA DEC Mag Color
bright star 0: 106.72003 (07:06:52.81) 7.15923 (+07:09:33.2) 11.24 USNO-V
bright star 1: 106.75558 (07:07:01.34) 7.21485 (+07:12:53.5) 11.80 GSC-V
Mean distance difference (CAT_DELTA) for 35 matched entries is 0.377" for 1297832_g903
Mean and std. dev of mag. difference (MAG_DELTA) are 1.368 and 0.489 for 1297832_g903
Found 3 entries without IDs and 3 entries that are acceptable afterglow candidates for 1297832_g903.
Acceptable entries have no ID, XRT distances < 6.5", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
0 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=106.7340 (07:06:56.16) DEC= 7.1990 (+07:11:56.4)
XRT distances are from RA=106.7605 (07:07:02.52) DEC= 7.1931 (+07:11:35.3)
-----------------
Entry 2 in the list of sources is a candidate afterglow for 1297832_g903 with genie
ra=106.73567 (07:06:56.56) dec=7.20404 (+07:12:14.5) +/- 0.6" mag=18.70+/-0.15
dist=97.0 REFID=10 major=3.9 minor=1.7 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 19.1 arc sec from the BAT position.
Found 9 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
106.7353 7.2003 13.7 -1 USNO-B1 99.99 18.88 99.99
106.7350 7.2040 2.6 -1 USNO-B1 19.37 17.84 18.52 *
106.7382 7.2002 16.4 -1 USNO-B1 12.71 12.02 12.32
106.7380 7.2032 8.9 -1 USNO-B1 20.37 17.85 18.97
106.7360 7.2082 15.1 -1 USNO-B1 19.82 19.07 19.40
106.7351 7.2039 2.3 -1 GSC2.3 17.79 19.58 18.14 *
106.7382 7.2002 16.4 -1 GSC2.3 99.99 99.99 12.37
106.7383 7.2009 14.6 -1 GSC2.3 99.99 99.99 99.99
106.7359 7.2082 14.9 -1 GSC2.3 19.02 20.76 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 12 mag
-----------------
Entry 15 in the list of sources is a candidate afterglow for 1297832_g903 with genie
ra=106.74310 (07:06:58.34) dec=7.20150 (+07:12:05.4) +/- 0.6" mag=17.16+/-0.14
dist=69.0 REFID=14 major=6.4 minor=2.0 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 33.7 arc sec from the BAT position.
Found 11 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
106.7382 7.2002 17.9 -1 USNO-B1 12.71 12.02 12.32
106.7380 7.2032 19.2 -1 USNO-B1 20.37 17.85 18.97
106.7416 7.2001 7.5 -1 USNO-B1 20.52 18.66 19.49
106.7447 7.2060 17.0 -1 USNO-B1 20.16 18.99 19.51
106.7468 7.2029 14.3 -1 USNO-B1 20.15 19.36 19.71
106.7382 7.2002 17.9 -1 GSC2.3 99.99 99.99 12.37
106.7383 7.2009 17.4 -1 GSC2.3 99.99 99.99 99.99
106.7404 7.1967 19.8 -1 GSC2.3 20.38 22.25 99.99
106.7450 7.1983 13.4 -1 GSC2.3 20.38 99.99 99.99
106.7447 7.2058 16.7 -1 GSC2.3 18.61 20.26 18.42
106.7466 7.2032 14.0 -1 GSC2.3 19.74 22.08 99.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 6.4
-----------------
Entry 16 in the list of sources is a candidate afterglow for 1297832_g903 with genie
ra=106.74236 (07:06:58.17) dec=7.19775 (+07:11:51.9) +/- 0.6" mag=17.92+/-0.14
dist=66.9 REFID=17 major=4.9 minor=2.5 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 30.2 arc sec from the BAT position.
Found 10 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
106.7382 7.2002 17.3 -1 USNO-B1 12.71 12.02 12.32
106.7416 7.2001 8.8 -1 USNO-B1 20.52 18.66 19.49
106.7411 7.1934 16.4 -1 USNO-B1 21.43 19.44 20.32
106.7468 7.1951 18.6 -1 USNO-B1 99.99 19.30 99.99
106.7382 7.2002 17.2 -1 GSC2.3 99.99 99.99 12.37
106.7383 7.2009 18.5 -1 GSC2.3 99.99 99.99 99.99
106.7404 7.1967 8.0 -1 GSC2.3 20.38 22.25 99.99
106.7412 7.1934 16.3 -1 GSC2.3 19.78 21.87 99.99
106.7450 7.1983 9.7 -1 GSC2.3 20.38 99.99 99.99
106.7470 7.1949 19.3 -1 GSC2.3 19.50 21.88 99.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 4.9
Found 5 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
106.7605 7.1914 6.3 -1 USNO-B1 18.63 17.00 17.73
106.7617 7.1916 7.1 -1 USNO-B1 18.53 17.21 17.80
106.7606 7.1938 2.6 -1 GSC2.3 20.45 99.99 99.99
106.7603 7.1912 6.9 -1 GSC2.3 17.97 18.89 17.59
106.7618 7.1915 7.4 -1 GSC2.3 17.52 19.60 99.99
The closest star is 2.56" away.
List UVOT sources within 10" of the XRT position:
There are 57422.246 counts in the bkg source region of 5306.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 10.822 counts/pixel (5-sig UL in 4" is 20.06 mag) for 1297832_g903
Do not compute counts in XRT region because position is too far from center.
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 20.61, XRT distances < 6.5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 1297832_764353276_250322d21h40m05s687461usUT_bkg.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(106.7256,7.1986,45")
fk5;-circle(106.723392936823,7.20752823252081,6")
fk5;-circle(106.723106371031,7.21076360130036,6")
fk5;-circle(106.735670836764,7.20403642534538,6")
fk5;-circle(106.732646071661,7.20979754857181,6")
fk5;-circle(106.720146495997,7.19667044574913,6")
fk5;-circle(106.717417797555,7.19651118170755,6")
fk5;-circle(106.738411956576,7.20013456178113,6")
fk5;-circle(106.725031627038,7.19082415917111,6")
fk5;-circle(106.721870958632,7.19089055280198,6")
fk5;-circle(106.736995400856,7.19438055265688,6")
fk5;-circle(106.712270137635,7.20366144112578,6")
fk5;-circle(106.715439141079,7.19346192172108,6")
fk5;-circle(106.719606826291,7.1877730642582,6")
image paragraph message for exposure 3 of trigger 1297832
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: no overlap
SRCLIST PROBLEM: srclist filled telemetry buffer
See notes for more details.
------ Start for Possible Stand-alone Circular ----
In response to GRB250322 (Swift/BAT trigger 1297832) at 16:06:12 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 868 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 0.153.
------- notes for trigger 1297832 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 250322d21h41m02s240426usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1297832
-expid=764353276 -meonly -msg_image
Results from standard processing of UVOT TDRSS data for this trigger should be
available at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/1297832/
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 764353276.81468 or about 2025:082:16:21:11 UT
Found 2016 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 21% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 18 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 37 source(s) in Genie image catalog. Found 3 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 20.61 mag. Found 232 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
22% of the Genie image region.
Genie image analysis:
Found 57422.2 counts in the large background region of 5306.0 pixels or a rate
of 10.822 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 19.88 mag. for a
4-arcsec aperture. The number of srclist sources filled the available
telemetry. The weakest source detected was 18.44 mag. The closest srclist
source has ra= 106.7602 dec= 7.2034 mag=18.18 sep=36.89". The closest Genie
source has ra= 106.7492 dec= 7.1974 mag=17.07 sep=43.19".
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?
764353276 867 WHITE srclist found no candidates.
764353276 867 WHITE image found no candidates.
List afterglow candidates for other finding charts.
764352484 75 WHITE srclist found no candidates.
764352484 75 WHITE image found no candidates.
764352698 289 U srclist found no candidates.
764352698 289 U image found no candidates.
------- Tokens for Quick GCN -------