image overlap message for exposure 1 of trigger 1036990
uvot_overlap.pl vrs. 2010-12-20b fem started at 210315d05h30m45s281176usUT
The observation of trigger 1036990 started 2021-03-15T05:24:31.6
Examining file 1036990_g161_uvot_sky_image.fits
The exposure ID is 637478671
The exposure time is 249.924 (seconds)
The filter is U.
*** Warning -- found 19168 null pixels in the image.
The uvot region is centered at (299.7020,35.3861) with a roll angle of 113.4
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 (299.7400,35.4030) with a radius of 3.000 arc min
This is 2.117 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 5.69 sq. arc min or 0.20 of the BAT error circle
The XRT error circle is centered at (299.6988,35.3895) with a radius of 0.083 arc min
This is 0.255 arc min from the center of the uvot region
The area of the XRT error circle is 0.022 sq. arc min
The UVOT/XRT overlap is 0.00 sq. arc min or 0.00 of the XRT error circle
image afterglow message for exposure 1 of trigger 1036990
find_uvot_ag.pl vrs. 2020-10-30 fem started at 210315d05h30m47s295676usUT
Observation start time is 2021-03-15T05:24:31.6
Examining file 1036990_g161_uvot_sources_image.fits
The exposure ID is 637478671
The exposure is 249.924 sec.
The bin size is 2 pixels
The filter is U
There are 9 detected source(s) for 1036990_g161
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 299.7156 , 35.3993 with radius 2.14 arc min.
n_usno: 250 n_gsc: 0
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.14298
RA DEC Mag Color
bright star 0: 299.73604 (19:58:56.65) 35.36957 (+35:22:10.4) 11.14 USNO-V
Found 9 entries without IDs and 9 entries that are acceptable afterglow candidates for 1036990_g161.
Acceptable entries have no ID, XRT distances < 12.5", 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=299.7400 (19:58:57.60) DEC=35.4030 (+35:24:10.8)
XRT distances are from RA=299.6988 (19:58:47.71) DEC=35.3895 (+35:23:22.2)
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1036990_g161 with genie
ra=299.73123 (19:58:55.50) dec=35.38527 (+35:23:07.0) +/- 0.8" mag=18.28+/-0.17
dist=96.4 REFID=1 major=1.4 minor=0.7 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 68.8 arc sec from the BAT position.
Found 6 entries in star catalog(s) within 20.0" of the candidate.
printing all entries
(Entries within 12 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
299.7273 35.3849 11.7 -1 USNO-B1 19.14 16.95 17.93 *
299.7251 35.3837 18.9 -1 USNO-B1 17.05 15.01 15.92
299.7320 35.3864 4.7 -1 USNO-B1 17.90 15.78 16.72 *
299.7362 35.3871 16.1 -1 USNO-B1 17.77 15.84 16.69
299.7368 35.3843 16.7 -1 USNO-B1 17.05 15.62 16.26
299.7322 35.3808 16.4 -1 USNO-B1 18.75 17.38 17.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1036990_g161 with genie
ra=299.70953 (19:58:50.29) dec=35.40012 (+35:24:00.4) +/- 0.7" mag=14.82+/-0.14
dist=49.5 REFID=2 major=4.5 minor=2.4 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 90.0 arc sec from the BAT position.
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
299.7121 35.3972 12.9 -1 USNO-B1 19.71 17.66 18.57 *
299.7080 35.3952 18.5 -1 USNO-B1 16.43 14.80 15.53
299.7048 35.4016 14.8 -1 USNO-B1 19.56 16.59 17.91
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 2 in the list of sources is a candidate afterglow for 1036990_g161 with genie
ra=299.70428 (19:58:49.03) dec=35.40526 (+35:24:19.0) +/- 0.7" mag=14.49+/-0.14
dist=59.0 REFID=3 major=4.4 minor=3.2 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 105.1 arc sec from the BAT position.
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
299.7048 35.4016 13.2 -1 USNO-B1 19.56 16.59 17.91 *
299.7053 35.4051 3.2 -1 USNO-B1 19.73 17.00 18.21 *
299.7017 35.4035 9.8 -1 USNO-B1 99.99 16.63 99.99 *
299.7009 35.4040 11.0 -1 USNO-B1 18.81 16.33 17.43 *
299.7057 35.4098 17.0 -1 USNO-B1 18.71 15.39 16.87
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 3 in the list of sources is a candidate afterglow for 1036990_g161 with genie
ra=299.70105 (19:58:48.25) dec=35.40946 (+35:24:34.1) +/- 0.7" mag=15.57+/-0.14
dist=72.2 REFID=4 major=2.3 minor=1.4 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 116.6 arc sec from the BAT position.
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
299.7009 35.4040 19.7 -1 USNO-B1 18.81 16.33 17.43
299.7057 35.4098 13.8 -1 USNO-B1 18.71 15.39 16.87
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 2.3
-----------------
Entry 4 in the list of sources is a candidate afterglow for 1036990_g161 with genie
ra=299.69995 (19:58:47.99) dec=35.40739 (+35:24:26.6) +/- 0.7" mag=16.16+/-0.14
dist=64.5 REFID=5 major=0.6 minor=0.5 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 118.6 arc sec from the BAT position.
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
299.7053 35.4051 17.8 -1 USNO-B1 19.73 17.00 18.21
299.7017 35.4035 14.9 -1 USNO-B1 99.99 16.63 99.99
299.7009 35.4040 12.5 -1 USNO-B1 18.81 16.33 17.43 *
299.7057 35.4098 19.1 -1 USNO-B1 18.71 15.39 16.87
299.6973 35.4043 13.4 -1 USNO-B1 99.99 16.79 99.99 *
299.6946 35.4067 15.9 -1 USNO-B1 99.99 17.32 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 5 in the list of sources is a candidate afterglow for 1036990_g161 with genie
ra=299.70298 (19:58:48.71) dec=35.41331 (+35:24:47.9) +/- 0.7" mag=16.18+/-0.14
dist=86.6 REFID=6 major=0.6 minor=0.4 flag=19 (neighbor+blended+aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 114.8 arc sec from the BAT position.
This source is near the edge of image (0.931)
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
299.7057 35.4098 14.9 -1 USNO-B1 18.71 15.39 16.87 *
299.7059 35.4174 17.2 -1 USNO-B1 19.39 16.63 17.86 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 20.25" or brighter than 12 mag
-----------------
Entry 6 in the list of sources is a candidate afterglow for 1036990_g161 with genie
ra=299.70209 (19:58:48.50) dec=35.41137 (+35:24:40.9) +/- 0.7" mag=15.96+/-0.14
dist=79.3 REFID=7 major=1.7 minor=1.3 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 115.2 arc sec from the BAT position.
This source is near the edge of image (0.883)
Found 1 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
299.7057 35.4098 12.0 -1 USNO-B1 18.71 15.39 16.87 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 20.25" or brighter than 12 mag
-----------------
Entry 7 in the list of sources is a candidate afterglow for 1036990_g161 with genie
ra=299.71498 (19:58:51.59) dec=35.39665 (+35:23:47.9) +/- 0.8" mag=17.18+/-0.15
dist=54.0 REFID=8 major=1.8 minor=0.9 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 76.9 arc sec from the BAT position.
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
299.7175 35.4010 17.2 -1 USNO-B1 99.99 17.57 99.99
299.7164 35.4016 18.4 -1 USNO-B1 18.90 16.45 17.54
299.7121 35.3972 8.7 -1 USNO-B1 19.71 17.66 18.57 *
299.7163 35.3949 7.4 -1 USNO-B1 17.41 14.54 15.82 *
299.7125 35.3943 11.0 -1 USNO-B1 13.96 12.21 12.99 *
299.7173 35.3917 19.1 -1 USNO-B1 19.22 17.34 18.17
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 8 in the list of sources is a candidate afterglow for 1036990_g161 with genie
ra=299.72650 (19:58:54.36) dec=35.39344 (+35:23:36.4) +/- 0.8" mag=16.86+/-0.15
dist=82.5 REFID=9 major=1.3 minor=1.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 52.5 arc sec from the BAT position.
This source is near the edge of image (0.877)
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
299.7225 35.3948 12.9 -1 USNO-B1 17.52 99.99 99.99 *
299.7212 35.3931 15.7 -1 USNO-B1 18.10 16.57 17.25 *
299.7235 35.3937 8.7 -1 USNO-B1 15.86 13.59 14.60 *
299.7208 35.3916 18.1 -1 USNO-B1 17.90 16.00 16.84 *
299.7215 35.3913 16.6 -1 USNO-B1 19.03 17.17 18.00 *
299.7232 35.3910 12.9 -1 USNO-B1 19.34 17.18 18.14 *
299.7274 35.3951 6.4 -1 USNO-B1 17.84 16.12 16.88 *
299.7284 35.3932 5.5 -1 USNO-B1 19.27 17.36 18.21 *
299.7297 35.3956 12.2 -1 USNO-B1 19.67 17.54 18.49 *
299.7310 35.3930 13.4 -1 USNO-B1 20.05 18.01 18.92 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 20.25" or brighter than 12 mag
Found 4 entries in star catalog(s) within 20" of the XRT position.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
299.7014 35.3933 15.7 -1 USNO-B1 16.13 13.71 14.78
299.7052 35.3889 18.9 -1 USNO-B1 19.08 17.27 18.08
299.6984 35.3908 4.8 -1 USNO-B1 13.97 12.59 13.21
299.7000 35.3865 11.3 -1 USNO-B1 18.52 16.80 17.57
The closest star is 4.81" away.
List UVOT sources within 20" of the XRT position:
There are 1156.2762 counts in the bkg source region of 128.00000 pixels.
Rate in bkg region from 0 to 45 arcsec is 9.033 counts/pixel (5-sig UL in 4" is 19.27 mag) for 1036990_g161
There are 0.0000000 counts in the xrt source region of 0.0000000 pixels.
There are 0.0000000 counts in the xrt_bkg source region of 0.0000000 pixels.
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 19.82, XRT distances < 12.5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Results are questionable because aspect solution FAILED.
Region file: 1036990_637478671_210315d05h30m47s295676usUT_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(299.7020,35.3861,45")
Region file: 1036990_637478671_210315d05h30m47s295676usUT_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(299.6988,+35.3895,8")
Region file: 1036990_637478671_210315d05h30m47s295676usUT_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(299.6988,+35.3895,25")
fk5;-circle(299.6988,+35.3895,15")
image paragraph message for exposure 1 of trigger 1036990
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: no aspect solution
SRCLIST PROBLEM: no srclist afterglow info
See notes for more details.
WARNING -- because of the LARGE EXTINCTION, results should be used cautiously.
------ Start for Possible Stand-alone Circular ----
In response to GRB210315 (Swift/BAT trigger 1036990) at 05:21:49 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 250 seconds with the U filter starting
135 seconds after the BAT trigger. No credible afterglow candidate has been
found in the initial data products. The 2.7'x2.7' sub-image processing FAILED
because of no aspect solution. Results from the list of sources generated
on-board are not available at this time. No correction has been made for the
large, but uncertain, extinction expected.
------- notes for trigger 1036990 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 210315d05h30m55s721148usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1036990
-expid=637478671 -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/1036990/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
Unreliable extinction found for bat position. Unreliable extinction found for
xrt position. XRT position found for Genie image. BAT position found.
UVOT exposure began at MET 637478671.57844 or about 2021:074:05:24:26 UT
No information found about the number of stars in the star catalog for srclist
region.
THERE IS NO ASPECT SOLUTION for the image data.
Found 9 source(s) in Genie image catalog. Found 9 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 19.82 mag. Found 246 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 37% of the
Genie image region. The Genie image is INCOMPLETE with 19168 null pixels.
The closest Genie source has ra= 299.7095 dec= 35.4001 mag=14.82 sep=49.54".
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?
637478671 135 U srclist data are not available.
637478671 135 U image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------