image overlap message for exposure 1 of trigger 1231488
uvot_overlap.pl vrs. 2010-12-20b fem started at 240529d05h55m35s217528usUT
The observation of trigger 1231488 started 2024-05-29T03:01:12.8
Examining file ./1231488_g161_uvot_sky_image.fits
The exposure ID is 738644472
The exposure time is 149.868 (seconds)
The filter is WHITE.
The uvot region is centered at (335.3625,51.5646) with a roll angle of 75.3
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 (335.3220,51.5550) with a radius of 3.000 arc min
This is 1.617 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 6.89 sq. arc min or 0.24 of the BAT error circle
The XRT error circle is centered at (335.3574,51.5617) with a radius of 0.037 arc min
This is 0.258 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
image afterglow message for exposure 1 of trigger 1231488
find_uvot_ag.pl vrs. 2023-04-25a fem started at 240529d05h55m40s052906usUT
Observation start time is 2024-05-29T03:01:12.8
Examining file ./1231488_g161_uvot_catalog_image.fits
The exposure ID is 738644472
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 62 detected source(s) for 1231488_g161
Aspect correction adds 0.00377 degrees (0.906 sec of time = 8.45 arc sec) to RA
Aspect correction adds -0.00045 degrees (-1.61 arcsec) to Dec
Total aspect correction is 8.60 arcsec
Star catalogs centered at 335.3494 , 51.5640 with radius 3.23 arc min.
n_usno: 634 n_gsc: 673
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.53756
RA DEC Mag Color
bright star 0: 335.29231 (22:21:10.16) 51.52751 (+51:31:39.1) 11.54 USNO-V
Mean distance difference (CAT_DELTA) for 64 matched entries is 0.563" for 1231488_g161
Mean and std. dev of mag. difference (MAG_DELTA) are 1.042 and 0.478 for 1231488_g161
Found 4 entries without IDs and 4 entries that are acceptable afterglow candidates for 1231488_g161.
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.
0 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=335.3220 (22:21:17.28) DEC=51.5550 (+51:33:18.0)
XRT distances are from RA=335.3574 (22:21:25.78) DEC=51.5617 (+51:33:42.0)
-----------------
Entry 16 in the list of sources is a candidate afterglow for 1231488_g161 with genie
ra=335.35782 (22:21:25.88) dec=51.56189 (+51:33:42.8) +/- 0.6" mag=16.53+/-0.14
dist=1.2 REFID=34 major=1.9 minor=1.1 flag=0
Found 13 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
335.3510 51.5630 15.8 -1 USNO-B1 20.27 18.45 19.26
335.3559 51.5615 4.4 -1 USNO-B1 17.77 16.20 16.89
335.3615 51.5629 9.2 -1 USNO-B1 18.78 17.52 18.08
335.3635 51.5632 13.7 -1 USNO-B1 19.81 18.05 18.83
335.3662 51.5610 19.1 -1 USNO-B1 19.97 19.17 19.53
335.3656 51.5593 19.8 -1 USNO-B1 17.86 16.16 16.91
335.3512 51.5629 15.3 -1 GSC2.3 18.51 20.83 19.52
335.3515 51.5602 15.4 -1 GSC2.3 19.63 99.99 99.99
335.3560 51.5615 4.5 -1 GSC2.3 16.37 17.38 16.89
335.3615 51.5628 8.9 -1 GSC2.3 17.65 18.90 17.78
335.3637 51.5631 13.8 -1 GSC2.3 18.52 20.53 99.99
335.3663 51.5609 19.4 -1 GSC2.3 19.21 20.61 99.99
335.3655 51.5591 19.9 -1 GSC2.3 16.53 17.69 17.12
*** unacceptable major profile of 1.9
-----------------
Entry 35 in the list of sources is a candidate afterglow for 1231488_g161 with genie
ra=335.37877 (22:21:30.90) dec=51.55702 (+51:33:25.3) +/- 0.6" mag=18.63+/-0.15
dist=50.6 REFID=42 major=1.0 minor=1.0 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 127.3 arc sec from the BAT position.
Found 13 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
335.3771 51.5560 5.3 -1 USNO-B1 19.70 17.78 18.63
335.3788 51.5573 1.0 -1 USNO-B1 19.44 16.47 17.79 *
335.3789 51.5566 1.5 -1 USNO-B1 18.50 16.88 17.60 *
335.3763 51.5532 14.7 -1 USNO-B1 17.33 15.40 16.26
335.3788 51.5561 3.2 -1 USNO-B1 17.35 16.98 17.14 *
335.3806 51.5559 5.8 -1 USNO-B1 18.68 16.97 17.73
335.3846 51.5549 15.2 -1 USNO-B1 17.71 99.99 99.99
335.3727 51.5549 15.6 -1 GSC2.3 19.79 21.19 99.99
335.3773 51.5558 5.4 -1 GSC2.3 17.99 20.08 99.99
335.3790 51.5569 0.6 -1 GSC2.3 17.60 18.60 99.99 *
335.3764 51.5531 15.2 -1 GSC2.3 15.58 16.86 16.28
335.3807 51.5557 6.3 -1 GSC2.3 17.28 18.81 16.43
335.3843 51.5549 14.4 -1 GSC2.3 16.31 17.34 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 52 in the list of sources is a candidate afterglow for 1231488_g161 with genie
ra=335.38714 (22:21:32.91) dec=51.54918 (+51:32:57.1) +/- 0.6" mag=16.42+/-0.14
dist=80.3 REFID=52 major=1.1 minor=1.0 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 147.3 arc sec from the BAT position.
Found 14 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
335.3847 51.5517 10.6 -1 USNO-B1 16.39 13.89 15.00
335.3861 51.5533 14.9 -1 USNO-B1 13.58 15.20 14.48
335.3865 51.5535 15.8 -1 USNO-B1 14.41 11.87 13.00 *
335.3802 51.5460 19.3 -1 USNO-B1 99.99 17.99 99.99
335.3877 51.5487 2.1 -1 USNO-B1 15.56 14.30 14.86 *
335.3883 51.5470 8.3 -1 USNO-B1 16.33 14.57 15.35
335.3938 51.5526 19.4 -1 USNO-B1 19.00 17.14 17.97
335.3917 51.5467 13.5 -1 USNO-B1 20.08 18.82 19.38
335.3847 51.5515 10.1 -1 GSC2.3 14.78 16.57 15.34
335.3868 51.5535 15.7 -1 GSC2.3 12.72 14.38 12.71
335.3876 51.5490 1.2 -1 GSC2.3 14.61 15.45 15.28 *
335.3885 51.5467 9.2 -1 GSC2.3 14.93 16.13 15.16
335.3939 51.5525 19.4 -1 GSC2.3 17.34 18.99 18.16
335.3919 51.5466 14.1 -1 GSC2.3 18.86 20.39 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 64 in the list of sources is a candidate afterglow for 1231488_g161 with genie
ra=335.39501 (22:21:34.80) dec=51.58288 (+51:34:58.4) +/- 0.7" mag=19.28+/-0.16
dist=113.6 REFID=7 major=0.6 minor=0.3 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 191.7 arc sec from the BAT position.
This source is near the edge of image (1.012)
Found 21 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
335.3905 51.5781 19.8 -1 USNO-B1 20.16 18.82 19.41
335.3945 51.5791 13.5 -1 USNO-B1 19.94 18.73 19.27
335.3891 51.5842 14.0 -1 USNO-B1 19.84 18.30 18.98
335.3894 51.5849 14.6 -1 USNO-B1 99.99 17.33 99.99
335.3893 51.5859 16.7 -1 USNO-B1 17.91 16.77 17.28
335.3908 51.5849 11.9 -1 USNO-B1 17.90 17.35 17.59
335.3913 51.5848 10.7 -1 USNO-B1 18.96 17.64 18.23
335.3958 51.5835 2.8 -1 USNO-B1 16.68 15.83 16.21 *
335.3997 51.5808 12.8 -1 USNO-B1 19.19 17.83 18.43
335.3957 51.5856 10.0 -1 USNO-B1 18.81 17.82 18.26
335.3990 51.5849 11.6 -1 USNO-B1 20.16 18.54 19.26
335.3907 51.5826 9.8 -1 GSC2.3 20.29 99.99 99.99
335.3891 51.5841 13.8 -1 GSC2.3 18.47 20.19 99.99
335.3945 51.5791 13.8 -1 GSC2.3 19.02 20.11 19.32
335.3928 51.5831 5.0 -1 GSC2.3 99.99 21.50 99.99 *
335.3893 51.5859 16.6 -1 GSC2.3 16.77 17.84 16.44
335.3915 51.5847 10.2 -1 GSC2.3 17.91 19.27 17.68
335.3958 51.5834 2.6 -1 GSC2.3 15.48 16.40 16.06 *
335.3998 51.5807 13.1 -1 GSC2.3 17.94 19.12 17.96
335.3958 51.5856 9.8 -1 GSC2.3 17.85 18.88 17.89
335.3994 51.5849 12.2 -1 GSC2.3 18.70 20.95 19.52
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 5.25" or brighter than 12 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
335.3559 51.5615 3.4 -1 USNO-B1 17.77 16.20 16.89
335.3560 51.5615 3.4 -1 GSC2.3 16.37 17.38 16.89
The closest star is 3.37" away.
List UVOT sources within 10" of the XRT position:
Unmatched source ra=335.35782 (22:21:25.88) dec=51.56189 (+51:33:42.8) +/- 0.6" mag=16.53+/-0.14 dist=1.2 REFID=34 flag=0
There are 56761.250 counts in the bkg source region of 4970.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 11.421 counts/pixel (5-sig UL in 4" is 20.03 mag) for 1231488_g161
There are 5357.0942 counts in the xrt source region of 196.00000 pixels.
Rate in xrt region with 8 arcsec radius is 27.332 counts/pixel for 1231488_g161
There are 9551.1055 counts in the xrt_bkg source region of 857.00000 pixels.
Rate in xrt_bkg region from 15 to 25 arcsec is 11.145 counts/pixel (5-sig UL in 4" is 20.04 mag) for 1231488_g161
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 20.58, XRT distances < 5.5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 1231488_738644472_240529d05h55m40s052906usUT_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(335.3625,51.5646,45")
fk5;-circle(335.342018639945,51.5608569282607,6")
fk5;-circle(335.354028865029,51.5565710602795,6")
fk5;-circle(335.357711012082,51.5549223486942,6")
fk5;-circle(335.357821295981,51.5618915835411,6")
fk5;-circle(335.361574065193,51.5629728028395,6")
fk5;-circle(335.356838988884,51.5695783741371,6")
fk5;-circle(335.365333398212,51.5560407508418,6")
fk5;-circle(335.365290553045,51.5592559740443,6")
fk5;-circle(335.36756845618,51.5636512145733,6")
fk5;-circle(335.356947884732,51.5769455966986,6")
fk5;-circle(335.371511094047,51.5665372734393,6")
fk5;-circle(335.374299646091,51.5629217299751,6")
fk5;-circle(335.376092471051,51.5532421445238,6")
fk5;-circle(335.378767514929,51.5570167083704,6")
fk5;-circle(335.376826532949,51.5702801098269,6")
fk5;-circle(335.382550722772,51.5693925282532,6")
Region file: 1231488_738644472_240529d05h55m40s052906usUT_xrt.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(335.35742,51.56167,8")
Region file: 1231488_738644472_240529d05h55m40s052906usUT_xrt_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(335.35742,51.56167,25")
fk5;-circle(335.35742,51.56167,15")
fk5;-circle(335.354028865029,51.5565710602795,6")
fk5;-circle(335.357711012082,51.5549223486942,6")
fk5;-circle(335.361574065193,51.5629728028395,6")
fk5;-circle(335.356838988884,51.5695783741371,6")
fk5;-circle(335.365333398212,51.5560407508418,6")
fk5;-circle(335.365290553045,51.5592559740443,6")
fk5;-circle(335.36756845618,51.5636512145733,6")
image paragraph message for exposure 1 of trigger 1231488
WARNING -- because of the LARGE EXTINCTION, results should be used cautiously.
1 source(s) near the XRT position were rejected as afterglow candidate(s). See
notes for details.
------ Start for Possible Stand-alone Circular ----
In response to GRB240529 (Swift/BAT trigger 1231488) at 02:58:30 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 128 seconds after the BAT trigger. There is a candidate afterglow in
the list of sources generated on-board at
RA(J2000) = 22:21:26.04 = 335.35851
DEC(J2000) = +51:33:43.4 = 51.56205
with a 90%-confidence error radius of about 1.10 arc sec. This position is 2.8
arc sec. from the center of the XRT error circle. The estimated magnitude is
17.84. No correction has been made for the large, but uncertain, extinction
expected.
------- notes for trigger 1231488 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 240529d05h55m42s974488usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1231488
-expid=738644472 -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/1231488/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
Unreliable extinction found for xrt position. XRT position found for srclist.
XRT position found for Genie image. BAT position found.
UVOT exposure began at MET 738644472.80458 or about 2024:150:03:01:07 UT
Found 2523 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 44% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 9 srclist
source(s) without IDs. There are 1 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 19.22 mag.
Found 62 source(s) in Genie image catalog. 1 source(s) are within 10.0" of the
xrt position. Found 4 Genie image source(s) without IDs. There are 0 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.58 mag. Found 651 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 43% of the Genie image region.
Found 1 Genie source(s) within 10.0" of the XRT position. The brightest such
source has ra= 335.3578 dec= 51.5619 mag=16.53 sep=1.20". The closest Genie
source has ra= 335.3578 dec= 51.5619 mag=16.53 sep=1.20".
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?
738644472 127 WHITE 335.35851 51.56205 17.84/19.2 2.8 srclist Yes
738644472 127 WHITE image found no candidates.
List afterglow candidates for other finding charts.
738644685 340 U srclist found no candidates.
738644685 340 U image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: 51.56205
GRB_ERROR: 1.10
GRB_RA: 335.35851
IMAGE_START_TIME: 03:01:07
MAGNITUDE: 17.84
MAG_ERROR: 0.4
MESSAGE_TYPE: ACK
SOURCE: XRT