image overlap message for exposure 1 of trigger 1211211
uvot_overlap.pl vrs. 2010-12-20b fem started at 240126d20h08m06s475642usUT
The observation of trigger 1211211 started 2024-01-26T19:58:42.7
Examining file 1211211_g218_uvot_sky_image.fits
The exposure ID is 727991922
The exposure time is 149.857 (seconds)
The filter is WHITE.
*** Warning -- no aspect solution was applied to the image.
consequently the calculated overlaps are questionable.
The uvot region is centered at (245.5290,-15.6560) with a roll angle of 102.9
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 (245.4650,-15.6600) with a radius of 3.000 arc min
This is 3.705 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 1.27 sq. arc min or 0.04 of the BAT error circle
The XRT error circle is centered at (245.5229,-15.6590) with a radius of 0.078 arc min
This is 0.396 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 1211211
find_uvot_ag.pl vrs. 2023-04-25a fem started at 240126d20h08m07s341343usUT
Observation start time is 2024-01-26T19:58:42.7
Examining file 1211211_g218_uvot_sources_image.fits
The exposure ID is 727991922
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 40 detected source(s) for 1211211_g218
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 245.5363 , -15.6513 with radius 2.42 arc min.
n_usno: 91 n_gsc: 102
Bright star catalog has no entries brighter than 12 mag
Found 40 entries without IDs and 9 entries that are acceptable afterglow candidates for 1211211_g218.
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=245.4650 (16:21:51.60) DEC=-15.6600 (-15:39:36.0)
XRT distances are from RA=245.5229 (16:22:05.50) DEC=-15.6590 (-15:39:32.4)
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 11 in the list of sources is a candidate afterglow for 1211211_g218 with genie
ra=245.51683 (16:22:04.04) dec=-15.64121 (-15:38:28.4) +/- 0.8" mag=19.43+/-0.19
dist=67.4 REFID=12 major=0.6 minor=0.5 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 192.0 arc sec from the BAT position.
Found 7 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
245.5197 -15.6444 15.3 -1 USNO-B1 20.44 19.30 19.80
245.5209 -15.6413 14.0 -1 USNO-B1 19.95 18.22 18.99
245.5187 -15.6439 11.6 -1 USNO-B1 21.34 19.35 20.23 *
245.5207 -15.6390 15.6 -1 USNO-B1 17.62 15.64 16.52
245.5194 -15.6443 14.3 -1 GSC2.3 18.91 20.27 99.99
245.5208 -15.6413 13.9 -1 GSC2.3 18.25 20.03 99.99
245.5207 -15.6390 15.5 -1 GSC2.3 15.69 17.61 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 12 in the list of sources is a candidate afterglow for 1211211_g218 with genie
ra=245.51896 (16:22:04.55) dec=-15.64061 (-15:38:26.2) +/- 0.8" mag=18.79+/-0.16
dist=67.6 REFID=13 major=1.3 minor=0.5 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 199.7 arc sec from the BAT position.
Found 7 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
245.5197 -15.6444 13.9 -1 USNO-B1 20.44 19.30 19.80
245.5209 -15.6413 7.1 -1 USNO-B1 19.95 18.22 18.99 *
245.5187 -15.6439 11.9 -1 USNO-B1 21.34 19.35 20.23 *
245.5207 -15.6390 8.4 -1 USNO-B1 17.62 15.64 16.52 *
245.5194 -15.6443 13.4 -1 GSC2.3 18.91 20.27 99.99 *
245.5208 -15.6413 7.0 -1 GSC2.3 18.25 20.03 99.99 *
245.5207 -15.6390 8.3 -1 GSC2.3 15.69 17.61 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 13 in the list of sources is a candidate afterglow for 1211211_g218 with genie
ra=245.52050 (16:22:04.92) dec=-15.64041 (-15:38:25.5) +/- 0.8" mag=19.29+/-0.18
dist=67.4 REFID=14 major=0.7 minor=0.5 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 204.9 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
245.5252 -15.6422 17.6 -1 USNO-B1 16.59 15.32 15.89
245.5197 -15.6444 14.7 -1 USNO-B1 20.44 19.30 19.80
245.5209 -15.6413 3.6 -1 USNO-B1 19.95 18.22 18.99 *
245.5187 -15.6439 14.1 -1 USNO-B1 21.34 19.35 20.23
245.5207 -15.6390 5.2 -1 USNO-B1 17.62 15.64 16.52 *
245.5252 -15.6421 17.5 -1 GSC2.3 15.28 16.46 99.99
245.5194 -15.6443 14.5 -1 GSC2.3 18.91 20.27 99.99
245.5208 -15.6413 3.5 -1 GSC2.3 18.25 20.03 99.99 *
245.5207 -15.6390 5.2 -1 GSC2.3 15.69 17.61 99.99 *
245.5215 -15.6352 19.2 -1 GSC2.3 19.58 99.99 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 14 in the list of sources is a candidate afterglow for 1211211_g218 with genie
ra=245.51507 (16:22:03.62) dec=-15.64117 (-15:38:28.2) +/- 0.8" mag=19.27+/-0.18
dist=69.7 REFID=15 major=0.5 minor=0.3 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 186.3 arc sec from the BAT position.
This source is near the edge of image (0.888)
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
245.5197 -15.6444 19.9 -1 USNO-B1 20.44 19.30 19.80 *
245.5187 -15.6439 15.9 -1 USNO-B1 21.34 19.35 20.23 *
245.5194 -15.6443 18.8 -1 GSC2.3 18.91 20.27 99.99 *
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 15 in the list of sources is a candidate afterglow for 1211211_g218 with genie
ra=245.51390 (16:22:03.34) dec=-15.64161 (-15:38:29.8) +/- 0.8" mag=18.50+/-0.15
dist=69.9 REFID=16 major=0.3 minor=0.3 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 182.0 arc sec from the BAT position.
This source is near the edge of image (0.912)
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
245.5187 -15.6439 18.5 -1 USNO-B1 21.34 19.35 20.23 *
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 16 in the list of sources is a candidate afterglow for 1211211_g218 with genie
ra=245.51644 (16:22:03.95) dec=-15.64721 (-15:38:49.9) +/- 0.8" mag=18.99+/-0.17
dist=48.0 REFID=17 major=2.4 minor=0.7 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 184.2 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
245.5206 -15.6473 14.4 -1 USNO-B1 18.07 16.89 17.41
245.5197 -15.6444 15.2 -1 USNO-B1 20.44 19.30 19.80
245.5187 -15.6465 8.1 -1 USNO-B1 21.68 19.79 20.63 *
245.5187 -15.6439 14.2 -1 USNO-B1 21.34 19.35 20.23
245.5205 -15.6472 14.2 -1 GSC2.3 17.03 18.30 99.99
245.5194 -15.6443 14.7 -1 GSC2.3 18.91 20.27 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 17 in the list of sources is a candidate afterglow for 1211211_g218 with genie
ra=245.52067 (16:22:04.96) dec=-15.64713 (-15:38:49.7) +/- 0.8" mag=18.05+/-0.15
dist=43.4 REFID=18 major=2.1 minor=0.7 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 198.5 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
245.5206 -15.6473 0.6 -1 USNO-B1 18.07 16.89 17.41 *
245.5197 -15.6444 10.3 -1 USNO-B1 20.44 19.30 19.80 *
245.5187 -15.6465 7.3 -1 USNO-B1 21.68 19.79 20.63 *
245.5187 -15.6439 13.5 -1 USNO-B1 21.34 19.35 20.23
245.5205 -15.6472 0.6 -1 GSC2.3 17.03 18.30 99.99 *
245.5194 -15.6443 11.1 -1 GSC2.3 18.91 20.27 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 18 in the list of sources is a candidate afterglow for 1211211_g218 with genie
ra=245.51318 (16:22:03.16) dec=-15.65168 (-15:39:06.1) +/- 0.8" mag=18.01+/-0.15
dist=42.8 REFID=19 major=4.0 minor=0.8 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 169.7 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
245.5181 -15.6530 17.6 -1 USNO-B1 21.33 19.56 20.35
245.5161 -15.6563 19.4 -1 USNO-B1 18.53 17.38 17.89
245.5153 -15.6564 18.6 -1 USNO-B1 16.80 15.47 16.06
245.5084 -15.6520 16.5 -1 USNO-B1 18.94 18.82 18.87
245.5152 -15.6564 18.4 -1 GSC2.3 15.36 16.61 99.99
245.5085 -15.6521 16.3 -1 GSC2.3 18.67 19.26 99.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 4.0
-----------------
Entry 38 in the list of sources is a candidate afterglow for 1211211_g218 with genie
ra=245.52350 (16:22:05.64) dec=-15.66033 (-15:39:37.2) +/- 0.8" mag=18.13+/-0.15
dist=5.2 REFID=39 major=3.5 minor=0.8 flag=0
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
245.5236 -15.6644 14.5 -1 USNO-B1 20.24 19.26 19.70
245.5237 -15.6645 14.9 -1 GSC2.3 19.40 20.37 99.99
*** unacceptable major profile of 3.5
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
245.5236 -15.6644 19.5 -1 USNO-B1 20.24 19.26 19.70
245.5237 -15.6645 19.9 -1 GSC2.3 19.40 20.37 99.99
The closest star is 19.49" away.
List UVOT sources within 20" of the XRT position:
Unmatched source ra=245.52810 (16:22:06.74) dec=-15.65920 (-15:39:33.1) +/- 0.8" mag=19.16+/-0.17 dist=18.0 REFID=36 flag=3
Unmatched source ra=245.52350 (16:22:05.64) dec=-15.66033 (-15:39:37.2) +/- 0.8" mag=18.13+/-0.15 dist=5.2 REFID=39 flag=0
There are 1.5763561E+05 counts in the bkg source region of 5396.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 29.213 counts/pixel (5-sig UL in 4" is 19.52 mag) for 1211211_g218
There are 5830.8516 counts in the xrt source region of 198.00000 pixels.
Rate in xrt region with 8 arcsec radius is 29.449 counts/pixel for 1211211_g218
There are 32474.883 counts in the xrt_bkg source region of 1127.0000 pixels.
Rate in xrt_bkg region from 15 to 25 arcsec is 28.815 counts/pixel (5-sig UL in 4" is 19.52 mag) for 1211211_g218
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 20.07, 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: 1211211_727991922_240126d20h08m07s341343usUT_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(245.5290,-15.6560,45")
fk5;-circle(245.539064464099,-15.6654017765484,6")
fk5;-circle(245.520665790574,-15.6471342557002,6")
fk5;-circle(245.539768778648,-15.6575975620863,6")
fk5;-circle(245.541348371841,-15.657235658607,6")
fk5;-circle(245.542627031976,-15.65727438151,6")
fk5;-circle(245.537234240782,-15.6580659859588,6")
fk5;-circle(245.535288845338,-15.6579675936087,6")
fk5;-circle(245.529433730205,-15.6586464805571,6")
fk5;-circle(245.528099097045,-15.6591967262685,6")
fk5;-circle(245.533137763392,-15.6587311680385,6")
fk5;-circle(245.531523729395,-15.658877221272,6")
fk5;-circle(245.523496811605,-15.6603349210257,6")
fk5;-circle(245.534493026725,-15.6651721650091,6")
Region file: 1211211_727991922_240126d20h08m07s341343usUT_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(245.5229,-15.6590,8")
Region file: 1211211_727991922_240126d20h08m07s341343usUT_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(245.5229,-15.6590,25")
fk5;-circle(245.5229,-15.6590,15")
fk5;-circle(245.529433730205,-15.6586464805571,6")
fk5;-circle(245.528099097045,-15.6591967262685,6")
fk5;-circle(245.531523729395,-15.658877221272,6")
image paragraph message for exposure 1 of trigger 1211211
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.
2 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 GRB240126 (Swift/BAT trigger 1211211) at 19:55:03 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 186 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 0.369.
------- notes for trigger 1211211 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 240126d20h08m08s989287usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1211211
-expid=727991922 -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/1211211/
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 727991922.73046 or about 2024:026:19:58:37 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 40 source(s) in Genie image catalog. 2 source(s) are within 20.0" of the
xrt position. Found 40 Genie image source(s) without IDs. There are 0 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.07 mag. Found 100 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 11% of the Genie image region.
Found 2 Genie source(s) within 20.0" of the XRT position. The brightest such
source has ra= 245.5235 dec= -15.6603 mag=18.13 sep=5.23". The closest Genie
source has ra= 245.5235 dec= -15.6603 mag=18.13 sep=5.23".
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 186 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 16:22:05.64 = 245.52350
DEC(J2000) = -15:39:37.2 = -15.66033
with a 90%-confidence error radius of about 0.76 arc sec. This position is 5.23
arc sec. from the center of the XRT error circle. The estimated magnitude is
18.13 with a 1-sigma error of about 0.15. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.369.
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?
727991922 186 WHITE srclist data are not available.
727991922 186 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------