image overlap message for exposure 1 of trigger 1125350
uvot_overlap.pl vrs. 2010-12-20b fem started at 220926d08h21m08s579298usUT
The observation of trigger 1125350 started 2022-09-26T08:13:38.5
Examining file 1125350_g183_uvot_sky_image.fits
The exposure ID is 685872818
The exposure time is 149.846 (seconds)
The filter is WHITE.
The uvot region is centered at (244.9351,-15.7807) with a roll angle of 276.9
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 (244.9250,-15.8370) with a radius of 3.000 arc min
This is 3.428 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 1.95 sq. arc min or 0.07 of the BAT error circle
The XRT error circle is centered at (244.9398,-15.7814) with a radius of 0.078 arc min
This is 0.273 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 1125350
find_uvot_ag.pl vrs. 2020-10-30 fem started at 220926d08h21m10s386186usUT
Observation start time is 2022-09-26T08:13:38.5
Examining file 1125350_g183_uvot_sources_image.fits
The exposure ID is 685872818
The exposure is 149.846 sec.
The bin size is 2 pixels
The filter is WHITE
There are 17 detected source(s) for 1125350_g183
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 244.9385 , -15.7812 with radius 2.46 arc min.
n_usno: 124 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Found 17 entries without IDs and 10 entries that are acceptable afterglow candidates for 1125350_g183.
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=244.9250 (16:19:42.00) DEC=-15.8370 (-15:50:13.2)
XRT distances are from RA=244.9398 (16:19:45.55) DEC=-15.7814 (-15:46:53.0)
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1125350_g183 with genie
ra=244.93063 (16:19:43.35) dec=-15.79996 (-15:47:59.9) +/- 0.8" mag=19.29+/-0.17
dist=74.0 REFID=1 major=1.8 minor=1.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 134.8 arc sec from the BAT position.
Found 3 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
244.9304 -15.7963 13.2 -1 USNO-B1 21.16 19.70 20.35 *
244.9303 -15.7987 4.7 -1 USNO-B1 18.36 17.62 17.95 *
244.9316 -15.8031 11.9 -1 USNO-B1 19.24 18.45 18.80 *
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 1125350_g183 with genie
ra=244.93834 (16:19:45.20) dec=-15.78938 (-15:47:21.8) +/- 0.7" mag=17.29+/-0.14
dist=29.2 REFID=9 major=1.7 minor=0.8 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 177.5 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
244.9406 -15.7909 9.5 -1 USNO-B1 21.27 19.48 20.27 *
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 9 in the list of sources is a candidate afterglow for 1125350_g183 with genie
ra=244.93834 (16:19:45.20) dec=-15.79104 (-15:47:27.8) +/- 0.8" mag=18.42+/-0.15
dist=35.1 REFID=10 major=0.5 minor=0.3 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 171.8 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
244.9406 -15.7909 7.7 -1 USNO-B1 21.27 19.48 20.27 *
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 10 in the list of sources is a candidate afterglow for 1125350_g183 with genie
ra=244.93858 (16:19:45.26) dec=-15.78710 (-15:47:13.6) +/- 0.8" mag=17.91+/-0.15
dist=21.0 REFID=11 major=0.5 minor=0.3 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 185.7 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
244.9399 -15.7818 19.6 -1 USNO-B1 20.56 19.49 19.97
244.9378 -15.7827 16.2 -1 USNO-B1 20.79 18.76 19.66
244.9406 -15.7909 15.4 -1 USNO-B1 21.27 19.48 20.27
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable minor profile of 0.3
-----------------
Entry 11 in the list of sources is a candidate afterglow for 1125350_g183 with genie
ra=244.93890 (16:19:45.34) dec=-15.78498 (-15:47:05.9) +/- 0.7" mag=16.83+/-0.14
dist=13.3 REFID=12 major=1.8 minor=1.2 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 193.4 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
244.9399 -15.7818 11.9 -1 USNO-B1 20.56 19.49 19.97 *
244.9378 -15.7827 9.1 -1 USNO-B1 20.79 18.76 19.66 *
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 1125350_g183 with genie
ra=244.93865 (16:19:45.28) dec=-15.78118 (-15:46:52.3) +/- 0.7" mag=17.48+/-0.14
dist=4.1 REFID=13 major=1.0 minor=0.3 flag=3 (neighbor+blended)
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
244.9399 -15.7818 4.9 -1 USNO-B1 20.56 19.49 19.97 *
244.9378 -15.7827 6.1 -1 USNO-B1 20.79 18.76 19.66 *
244.9350 -15.7801 13.1 -1 USNO-B1 18.27 17.38 17.77 *
244.9415 -15.7772 17.4 -1 USNO-B1 20.69 19.23 19.88
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 13 in the list of sources is a candidate afterglow for 1125350_g183 with genie
ra=244.93906 (16:19:45.37) dec=-15.78278 (-15:46:58.0) +/- 0.7" mag=15.56+/-0.14
dist=5.6 REFID=14 major=1.0 minor=0.7 flag=3 (neighbor+blended)
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
244.9399 -15.7818 4.6 -1 USNO-B1 20.56 19.49 19.97 *
244.9378 -15.7827 4.3 -1 USNO-B1 20.79 18.76 19.66 *
244.9350 -15.7801 16.9 -1 USNO-B1 18.27 17.38 17.77
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 14 in the list of sources is a candidate afterglow for 1125350_g183 with genie
ra=244.91353 (16:19:39.25) dec=-15.78438 (-15:47:03.8) +/- 0.8" mag=19.07+/-0.16
dist=91.6 REFID=15 major=1.5 minor=1.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 193.6 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
244.9133 -15.7857 4.9 -1 USNO-B1 20.16 19.20 19.62 *
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 15 in the list of sources is a candidate afterglow for 1125350_g183 with genie
ra=244.94398 (16:19:46.55) dec=-15.78389 (-15:47:02.0) +/- 0.7" mag=17.19+/-0.14
dist=17.0 REFID=16 major=4.2 minor=1.5 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 202.2 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
244.9399 -15.7818 15.9 -1 USNO-B1 20.56 19.49 19.97
244.9476 -15.7839 12.4 -1 USNO-B1 20.39 18.99 19.61 *
244.9480 -15.7841 13.9 -1 USNO-B1 19.81 19.15 19.45
244.9494 -15.7855 19.4 -1 USNO-B1 17.91 16.63 17.20
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 16 in the list of sources is a candidate afterglow for 1125350_g183 with genie
ra=244.93470 (16:19:44.33) dec=-15.78572 (-15:47:08.6) +/- 1.1" mag=20.58+/-0.32
dist=23.5 REFID=17 major=2.1 minor=1.9 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 187.6 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
244.9378 -15.7827 15.4 -1 USNO-B1 20.79 18.76 19.66
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 2.1
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
244.9399 -15.7818 1.5 -1 USNO-B1 20.56 19.49 19.97
244.9378 -15.7827 8.3 -1 USNO-B1 20.79 18.76 19.66
244.9350 -15.7801 17.2 -1 USNO-B1 18.27 17.38 17.77
244.9415 -15.7772 16.2 -1 USNO-B1 20.69 19.23 19.88
The closest star is 1.55" away.
List UVOT sources within 20" of the XRT position:
Unmatched source ra=244.94189 (16:19:46.05) dec=-15.77850 (-15:46:42.6) +/- 0.8" mag=19.36+/-0.18 dist=12.7 REFID=8 flag=0
Unmatched source ra=244.93890 (16:19:45.34) dec=-15.78498 (-15:47:05.9) +/- 0.7" mag=16.83+/-0.14 dist=13.3 REFID=12 flag=3
Unmatched source ra=244.93865 (16:19:45.28) dec=-15.78118 (-15:46:52.3) +/- 0.7" mag=17.48+/-0.14 dist=4.1 REFID=13 flag=3
Unmatched source ra=244.93906 (16:19:45.37) dec=-15.78278 (-15:46:58.0) +/- 0.7" mag=15.56+/-0.14 dist=5.6 REFID=14 flag=3
Unmatched source ra=244.94398 (16:19:46.55) dec=-15.78389 (-15:47:02.0) +/- 0.7" mag=17.19+/-0.14 dist=17.0 REFID=16 flag=0
There are 1.3287083E+05 counts in the bkg source region of 5461.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 24.331 counts/pixel (5-sig UL in 4" is 19.62 mag) for 1125350_g183
There are 11071.713 counts in the xrt source region of 199.00000 pixels.
Rate in xrt region with 8 arcsec radius is 55.637 counts/pixel for 1125350_g183
There are 25221.520 counts in the xrt_bkg source region of 951.00000 pixels.
Rate in xrt_bkg region from 15 to 25 arcsec is 26.521 counts/pixel (5-sig UL in 4" is 19.57 mag) for 1125350_g183
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 20.17, XRT distances < 11.75",
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: 1125350_685872818_220926d08h21m10s386186usUT_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(244.9351,-15.7807,45")
fk5;-circle(244.94188756825,-15.77849964077,6")
fk5;-circle(244.938335477081,-15.789383872595,6")
fk5;-circle(244.938342199117,-15.7910427339304,6")
fk5;-circle(244.938579504466,-15.7871029247532,6")
fk5;-circle(244.938900685191,-15.7849783823187,6")
fk5;-circle(244.938651343163,-15.7811822355906,6")
fk5;-circle(244.939055344907,-15.7827758766045,6")
fk5;-circle(244.943978126095,-15.7838936646474,6")
fk5;-circle(244.934699037952,-15.7857223766465,6")
Region file: 1125350_685872818_220926d08h21m10s386186usUT_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(244.9398,-15.7814,8")
Region file: 1125350_685872818_220926d08h21m10s386186usUT_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(244.9398,-15.7814,25")
fk5;-circle(244.9398,-15.7814,15")
fk5;-circle(244.94188756825,-15.77849964077,6")
fk5;-circle(244.938335477081,-15.789383872595,6")
fk5;-circle(244.938579504466,-15.7871029247532,6")
fk5;-circle(244.938900685191,-15.7849783823187,6")
fk5;-circle(244.943978126095,-15.7838936646474,6")
fk5;-circle(244.934699037952,-15.7857223766465,6")
image paragraph message for exposure 1 of trigger 1125350
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.
5 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 GRB220926 (Swift/BAT trigger 1125350) at 08:10:34 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 154 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 0.314.
------- notes for trigger 1125350 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 220926d08h21m14s546381usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1125350
-expid=685872818 -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/1125350/
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.
*** Warning -- BAT and XRT error circles do NOT overlap.
UVOT exposure began at MET 685872818.53356 or about 2022:269:08:13:33 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 17 source(s) in Genie image catalog. 5 source(s) are within 20.0" of the
xrt position. Found 17 Genie image source(s) without IDs. There are 0 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.17 mag. Found 120 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 13% of the Genie image region.
Found 5 Genie source(s) within 20.0" of the XRT position. The brightest such
source has ra= 244.9386 dec= -15.7812 mag=17.48 sep=4.06". The closest Genie
source has ra= 244.9386 dec= -15.7812 mag=17.48 sep=4.06".
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 154 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 16:19:45.28 = 244.93865
DEC(J2000) = -15:46:52.2 = -15.78118
with a 90%-confidence error radius of about 0.75 arc sec. This position is 4.06
arc sec. from the center of the XRT error circle. The estimated magnitude is
17.48 with a 1-sigma error of about 0.14. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.314.
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?
685872818 154 WHITE srclist data are not available.
685872818 154 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------