image overlap message for exposure 1 of trigger 1125354
uvot_overlap.pl vrs. 2010-12-20b fem started at 220926d09h33m28s683502usUT
The observation of trigger 1125354 started 2022-09-26T09:25:43.2
Examining file 1125354_g172_uvot_sky_image.fits
The exposure ID is 685877143
The exposure time is 149.846 (seconds)
The filter is WHITE.
The uvot region is centered at (244.9962,-16.0433) with a roll angle of 277.0
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 (245.0110,-16.0430) with a radius of 3.000 arc min
This is 0.855 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 (245.0022,-16.0438) with a radius of 0.078 arc min
This is 0.349 arc min from the center of the uvot region
The area of the XRT error circle is 0.019 sq. arc min
The UVOT/XRT overlap is 0.019 sq. arc min or 1.00 of the XRT error circle
image afterglow message for exposure 1 of trigger 1125354
find_uvot_ag.pl vrs. 2020-10-30 fem started at 220926d09h33m30s211844usUT
Observation start time is 2022-09-26T09:25:43.2
Examining file 1125354_g172_uvot_sources_image.fits
The exposure ID is 685877143
The exposure is 149.846 sec.
The bin size is 2 pixels
The filter is WHITE
There are 13 detected source(s) for 1125354_g172
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 245.0000 , -16.0421 with radius 2.54 arc min.
n_usno: 134 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Found 13 entries without IDs and 13 entries that are acceptable afterglow candidates for 1125354_g172.
Acceptable entries have no ID, XRT distances < 11.75", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
Magnitude criteria will be applied later.
BAT distances are from RA=245.0110 (16:20:02.64) DEC=-16.0430 (-16:02:34.8)
XRT distances are from RA=245.0022 (16:20:00.53) DEC=-16.0438 (-16:02:37.7)
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1125354_g172 with genie
ra=244.99254 (16:19:58.21) dec=-16.06108 (-16:03:39.9) +/- 0.8" mag=19.06+/-0.16
dist=70.6 REFID=1 major=1.5 minor=1.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 91.2 arc sec from the BAT position.
Found 0 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)
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1125354_g172 with genie
ra=244.99553 (16:19:58.93) dec=-16.02321 (-16:01:23.6) +/- 0.8" mag=17.81+/-0.15
dist=77.6 REFID=2 major=2.5 minor=1.4 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 89.1 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
244.9950 -16.0263 11.3 -1 USNO-B1 20.89 19.52 20.13 *
245.0009 -16.0233 18.5 -1 USNO-B1 21.11 19.49 20.21
244.9953 -16.0209 8.4 -1 USNO-B1 20.68 19.30 19.91 *
244.9940 -16.0205 11.0 -1 USNO-B1 99.99 19.70 99.99 *
244.9911 -16.0201 18.9 -1 USNO-B1 20.88 19.37 20.04
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 1125354_g172 with genie
ra=245.02468 (16:20:05.92) dec=-16.03868 (-16:02:19.3) +/- 0.7" mag=15.93+/-0.14
dist=79.9 REFID=3 major=2.7 minor=1.5 flag=16 (aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 49.8 arc sec from the BAT position.
This source is near the edge of image (0.874)
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
245.0194 -16.0378 18.4 -1 USNO-B1 20.55 18.29 19.29 *
245.0204 -16.0380 15.0 -1 USNO-B1 20.37 99.99 99.99 *
245.0208 -16.0381 13.6 -1 USNO-B1 20.64 19.38 19.94 *
245.0257 -16.0413 10.2 -1 USNO-B1 99.99 19.62 99.99 *
245.0285 -16.0368 14.8 -1 USNO-B1 20.45 18.52 19.38 *
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 3 in the list of sources is a candidate afterglow for 1125354_g172 with genie
ra=245.00059 (16:20:00.14) dec=-16.04180 (-16:02:30.5) +/- 0.7" mag=17.37+/-0.14
dist=9.1 REFID=4 major=3.0 minor=0.9 flag=0
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
245.0038 -16.0459 18.6 -1 USNO-B1 18.81 17.69 18.19
*** unacceptable major profile of 3.0
-----------------
Entry 4 in the list of sources is a candidate afterglow for 1125354_g172 with genie
ra=244.99483 (16:19:58.76) dec=-16.04150 (-16:02:29.4) +/- 0.8" mag=17.93+/-0.15
dist=26.8 REFID=5 major=5.0 minor=1.6 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 56.2 arc sec from the BAT position.
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
244.9957 -16.0449 12.8 -1 USNO-B1 20.52 18.14 19.20 *
244.9935 -16.0461 17.3 -1 USNO-B1 20.62 19.42 19.95
244.9919 -16.0399 11.8 -1 USNO-B1 19.12 18.88 18.99 *
244.9900 -16.0436 18.2 -1 USNO-B1 21.21 19.14 20.06
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 1125354_g172 with genie
ra=244.99726 (16:19:59.34) dec=-16.03918 (-16:02:21.0) +/- 0.8" mag=18.92+/-0.16
dist=23.9 REFID=6 major=4.4 minor=2.4 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 49.5 arc sec from the BAT position.
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
244.9919 -16.0399 18.9 -1 USNO-B1 19.12 18.88 18.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 4.4
-----------------
Entry 6 in the list of sources is a candidate afterglow for 1125354_g172 with genie
ra=244.99738 (16:19:59.37) dec=-16.04508 (-16:02:42.3) +/- 0.8" mag=17.98+/-0.15
dist=17.3 REFID=7 major=0.5 minor=0.3 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 47.7 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
244.9957 -16.0449 5.9 -1 USNO-B1 20.52 18.14 19.20 *
244.9935 -16.0461 14.0 -1 USNO-B1 20.62 19.42 19.95
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 7 in the list of sources is a candidate afterglow for 1125354_g172 with genie
ra=244.99670 (16:19:59.21) dec=-16.04609 (-16:02:45.9) +/- 0.7" mag=17.10+/-0.14
dist=20.7 REFID=8 major=2.0 minor=0.8 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 50.7 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
244.9957 -16.0449 5.4 -1 USNO-B1 20.52 18.14 19.20 *
244.9935 -16.0461 11.2 -1 USNO-B1 20.62 19.42 19.95 *
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 1125354_g172 with genie
ra=244.99948 (16:19:59.87) dec=-16.04263 (-16:02:33.5) +/- 0.7" mag=16.12+/-0.14
dist=10.3 REFID=9 major=1.3 minor=0.5 flag=3 (neighbor+blended)
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
244.9957 -16.0449 15.6 -1 USNO-B1 20.52 18.14 19.20
245.0038 -16.0459 19.2 -1 USNO-B1 18.81 17.69 18.19
uvot_check_outside found 13 of 13 good pixels
##### This source remains a candidate #####
It has no entries within 13.5" or brighter than 12 mag
-----------------
Entry 9 in the list of sources is a candidate afterglow for 1125354_g172 with genie
ra=245.00080 (16:20:00.19) dec=-16.04324 (-16:02:35.7) +/- 0.7" mag=15.68+/-0.14
dist=5.2 REFID=10 major=1.6 minor=1.0 flag=3 (neighbor+blended)
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
244.9957 -16.0449 18.8 -1 USNO-B1 20.52 18.14 19.20
245.0038 -16.0459 14.3 -1 USNO-B1 18.81 17.69 18.19
*** unacceptable major profile of 1.6
-----------------
Entry 10 in the list of sources is a candidate afterglow for 1125354_g172 with genie
ra=244.97538 (16:19:54.09) dec=-16.04550 (-16:02:43.8) +/- 0.8" mag=19.20+/-0.17
dist=93.0 REFID=11 major=1.5 minor=0.7 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 123.6 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
244.9789 -16.0427 15.7 -1 USNO-B1 20.38 18.78 19.49
244.9747 -16.0403 18.8 -1 USNO-B1 20.35 19.25 19.74
244.9728 -16.0434 11.7 -1 USNO-B1 20.23 19.27 19.69 *
244.9739 -16.0505 18.6 -1 USNO-B1 19.64 18.81 19.18
244.9726 -16.0438 11.4 -1 USNO-B1 20.45 19.68 20.02 *
244.9737 -16.0506 19.4 -1 USNO-B1 99.99 18.79 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 11 in the list of sources is a candidate afterglow for 1125354_g172 with genie
ra=245.00160 (16:20:00.38) dec=-16.04815 (-16:02:53.3) +/- 0.8" mag=18.54+/-0.15
dist=15.8 REFID=12 major=3.3 minor=2.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 37.4 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
245.0038 -16.0459 11.0 -1 USNO-B1 18.81 17.69 18.19 *
245.0024 -16.0488 3.6 -1 USNO-B1 19.48 18.29 18.82 *
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 12 in the list of sources is a candidate afterglow for 1125354_g172 with genie
ra=244.97677 (16:19:54.42) dec=-16.05462 (-16:03:16.6) +/- 0.8" mag=18.70+/-0.15
dist=96.2 REFID=13 major=2.1 minor=0.7 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 125.6 arc sec from the BAT position.
This source is near the edge of image (0.921)
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
244.9810 -16.0543 14.8 -1 USNO-B1 20.40 19.13 19.70 *
244.9813 -16.0574 18.7 -1 USNO-B1 16.68 15.46 16.01 *
244.9739 -16.0505 17.9 -1 USNO-B1 19.64 18.81 19.18 *
244.9756 -16.0543 4.2 -1 USNO-B1 20.16 99.99 99.99 *
244.9737 -16.0506 18.0 -1 USNO-B1 99.99 18.79 99.99 *
244.9752 -16.0547 5.3 -1 USNO-B1 18.54 17.54 17.98 *
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 2 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
245.0038 -16.0459 9.5 -1 USNO-B1 18.81 17.69 18.19
245.0024 -16.0488 18.0 -1 USNO-B1 19.48 18.29 18.82
The closest star is 9.54" away.
List UVOT sources within 20" of the XRT position:
Unmatched source ra=245.00059 (16:20:00.14) dec=-16.04180 (-16:02:30.5) +/- 0.7" mag=17.37+/-0.14 dist=9.1 REFID=4 flag=0
Unmatched source ra=244.99738 (16:19:59.37) dec=-16.04508 (-16:02:42.3) +/- 0.8" mag=17.98+/-0.15 dist=17.3 REFID=7 flag=3
Unmatched source ra=244.99948 (16:19:59.87) dec=-16.04263 (-16:02:33.5) +/- 0.7" mag=16.12+/-0.14 dist=10.3 REFID=9 flag=3
Unmatched source ra=245.00080 (16:20:00.19) dec=-16.04324 (-16:02:35.7) +/- 0.7" mag=15.68+/-0.14 dist=5.2 REFID=10 flag=3
Unmatched source ra=245.00160 (16:20:00.38) dec=-16.04815 (-16:02:53.3) +/- 0.8" mag=18.54+/-0.15 dist=15.8 REFID=12 flag=0
There are 1.3467475E+05 counts in the bkg source region of 5604.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 24.032 counts/pixel (5-sig UL in 4" is 19.62 mag) for 1125354_g172
There are 5456.6455 counts in the src source region of 49.000000 pixels.
Rate in src region with 4 arcsec radius is 111.360 counts/pixel for 1125354_g172
There are 25585.201 counts in the cand_src_bkg source region of 948.00000 pixels.
Rate in cand_src_bkg region from 15 to 25 arcsec is 26.989 counts/pixel (5-sig UL in 4" is 19.56 mag) for 1125354_g172
There are 1 candidate(s) outside XRT error circle with mag < 19.62
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 20.18, XRT distances < 11.75",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 1 good candidate(s) found.
Results are questionable because aspect solution FAILED.
Region file: 1125354_685877143_220926d09h33m30s211844usUT_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(244.9962,-16.0433,45")
fk5;-circle(245.000592779021,-16.0418038539714,6")
fk5;-circle(244.994827618676,-16.0414983840488,6")
fk5;-circle(244.997256868698,-16.0391750263665,6")
fk5;-circle(244.997376224559,-16.0450789358877,6")
fk5;-circle(244.996703330712,-16.0460883132972,6")
fk5;-circle(244.999476748409,-16.0426276070667,6")
fk5;-circle(245.000804029241,-16.0432398302271,6")
fk5;-circle(245.001600519679,-16.0481501873903,6")
Region file: 1125354_685877143_220926d09h33m30s211844usUT_cand_src.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(244.999476748409,-16.0426276070667,4")
Region file: 1125354_685877143_220926d09h33m30s211844usUT_cand_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(244.999476748409,-16.0426276070667,25")
fk5;-circle(244.999476748409,-16.0426276070667,15")
fk5;-circle(244.994827618676,-16.0414983840488,6")
fk5;-circle(244.997256868698,-16.0391750263665,6")
fk5;-circle(244.997376224559,-16.0450789358877,6")
fk5;-circle(244.996703330712,-16.0460883132972,6")
fk5;-circle(245.001600519679,-16.0481501873903,6")
image paragraph message for exposure 1 of trigger 1125354
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.
------ Start for Possible Stand-alone Circular ----
In response to GRB220926 (Swift/BAT trigger 1125354) at 09:22:50 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 143 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 expected extinction corresponding to E(B-V) of 0.269.
------- notes for trigger 1125354 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 220926d09h33m31s815296usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1125354
-expid=685877143 -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/1125354/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
XRT position found for Genie image. BAT position found.
UVOT exposure began at MET 685877143.17288 or about 2022:269:09:25:38 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 13 source(s) in Genie image catalog. 5 source(s) are within 20.0" of the
xrt position. Found 13 Genie image source(s) without IDs. There are 1 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.18 mag. Found 130 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 13% of the Genie image region.
This paragraph is only useful if the XRT position is grossly wrong. There are 1
candidate(s) in the image data with mag < 19.62 inside the BAT error region,
but outside the XRT error region. The brightest such source is at RA=244.99254
(16:19:58.21), DEC=-16.06108 (-16:03:39.9) (J2000). It has a mag of 19.06. It
is 91.2" from the BAT position.
****THIS SOURCE IS OUTSIDE XRT ERROR CIRCLE--USE WITH CAUTION***
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 143 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 16:19:58.21 = 244.99254
DEC(J2000) = -16:03:39.9 = -16.06108
with a 90%-confidence error radius of about 0.79 arc sec. The estimated
magnitude is 19.06 with a 1-sigma error of about 0.16. No correction has been
made for the expected extinction corresponding to E(B-V) of 0.269.
Report rejected UVOT sources within 10 arcsec XRT position.
Such sources are usually NOT the afterglow.
****THIS SOURCE NEAR XRT POSITION WAS REJECTED--USE WITH CAUTION****
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 143 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 16:20:00.19 = 245.00080
DEC(J2000) = -16:02:35.7 = -16.04324
with a 90%-confidence error radius of about 0.74 arc sec. This position is 5.23
arc sec. from the center of the XRT error circle. The estimated magnitude is
15.68 with a 1-sigma error of about 0.14. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.269.
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?
685877143 143 WHITE srclist data are not available.
685877143 143 WHITE 244.99948 -16.04263 16.12/20.2 10.3 image No
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------