image overlap message for exposure 2 of trigger 1053220
uvot_overlap.pl vrs. 2010-12-20b fem started at 210603d10h59m31s566529usUT
The observation of trigger 1053220 started 2021-06-03T10:53:49.3
Examining file 1053220_g4082_uvot_sky_image.fits
The exposure ID is 644410429
The exposure time is 149.857 (seconds)
The filter is WHITE.
The uvot region is centered at (238.8197,-54.0541) with a roll angle of 202.0
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 (238.8190,-54.0460) with a radius of 3.000 arc min
This is 0.489 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
Could not find the location of an XRT error circle
image afterglow message for exposure 2 of trigger 1053220
find_uvot_ag.pl vrs. 2020-10-30 fem started at 210603d10h59m33s266565usUT
Observation start time is 2021-06-03T10:53:49.3
Examining file 1053220_g4082_uvot_catalog_image.fits
The exposure ID is 644410429
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 64 detected source(s) for 1053220_g4082
Aspect correction adds 0.00069 degrees (0.165 sec of time = 1.45 arc sec) to RA
Aspect correction adds -0.00092 degrees (-3.32 arcsec) to Dec
Total aspect correction is 3.62 arcsec
Star catalogs centered at 238.8193 , -54.0545 with radius 2.72 arc min.
n_usno: 440 n_gsc: 0
*** WARNING -- bright star catalog has 3 entries brighter than 12 mag
The brightest has mag 10.71494
RA DEC Mag Color
bright star 0: 238.80655 (15:55:13.57) -54.06409 (-54:03:50.7) 11.70 USNO-R
bright star 1: 238.79818 (15:55:11.56) -54.07666 (-54:04:36.0) 10.71 USNO-V
bright star 2: 238.85814 (15:55:25.95) -54.07434 (-54:04:27.6) 11.40 USNO-V
*** WARNING -- no XRT distances are available.
Mean distance difference (CAT_DELTA) for 52 matched entries is 0.652" for 1053220_g4082
Mean and std. dev of mag. difference (MAG_DELTA) are 1.499 and 0.586 for 1053220_g4082
Found 14 entries without IDs and 9 entries that are acceptable afterglow candidates for 1053220_g4082.
Acceptable entries have no ID, BAT distance < 200" or XRT distance < 10", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
5 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=238.8190 (15:55:16.56) DEC=-54.0460 (-54:02:45.6)
XRT distances are as reported in catalog file.
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1053220_g4082 with genie
ra=238.82688 (15:55:18.45) dec=-54.04620 (-54:02:46.3) +/- 0.7" mag=19.85+/-0.19
dist=16.7 REFID=18 major=0.9 minor=0.8 flag=0
Found 11 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
238.8267 -54.0511 17.6 -1 USNO-B1 18.05 16.44 17.15
238.8238 -54.0484 10.1 -1 USNO-B1 20.52 18.87 19.60
238.8324 -54.0506 19.8 -1 USNO-B1 19.06 18.18 18.57
238.8269 -54.0459 1.0 -1 USNO-B1 18.63 17.02 17.73 *
238.8204 -54.0447 14.7 -1 USNO-B1 19.34 17.08 18.08
238.8200 -54.0447 15.5 -1 USNO-B1 16.91 15.79 16.29
238.8307 -54.0472 8.9 -1 USNO-B1 20.06 19.10 19.53
238.8342 -54.0485 17.6 -1 USNO-B1 20.30 18.61 19.36
238.8256 -54.0434 10.4 -1 USNO-B1 15.28 13.68 14.39
238.8235 -54.0425 15.1 -1 USNO-B1 18.03 16.09 16.95
238.8336 -54.0453 14.6 -1 USNO-B1 19.50 18.42 18.90
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 9 in the list of sources is a candidate afterglow for 1053220_g4082 with genie
ra=238.81595 (15:55:15.83) dec=-54.03616 (-54:02:10.2) +/- 0.8" mag=20.08+/-0.21
dist=36.0 REFID=7 major=0.9 minor=0.6 flag=0
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
238.8150 -54.0406 16.1 -1 USNO-B1 16.88 16.01 16.40
238.8115 -54.0395 15.2 -1 USNO-B1 18.36 17.49 17.88
238.8218 -54.0377 13.4 -1 USNO-B1 19.82 18.63 19.16
238.8187 -54.0373 7.1 -1 USNO-B1 18.65 18.05 18.32
238.8117 -54.0375 10.3 -1 USNO-B1 13.64 12.98 13.27
238.8153 -54.0367 2.3 -1 USNO-B1 16.96 16.46 16.68 *
238.8107 -54.0341 13.4 -1 USNO-B1 99.99 17.28 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 11 in the list of sources is a candidate afterglow for 1053220_g4082 with genie
ra=238.80214 (15:55:12.51) dec=-54.03949 (-54:02:22.2) +/- 0.6" mag=16.97+/-0.14
dist=42.7 REFID=10 major=1.5 minor=1.0 flag=0
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
238.8073 -54.0416 13.3 -1 USNO-B1 19.48 18.93 19.17
238.8115 -54.0395 19.8 -1 USNO-B1 18.36 17.49 17.88
238.8032 -54.0414 7.3 -1 USNO-B1 99.99 18.61 99.99
238.7989 -54.0417 10.6 -1 USNO-B1 19.87 19.48 19.65
238.8026 -54.0393 1.2 -1 USNO-B1 15.97 15.01 15.44 *
238.8059 -54.0369 12.3 -1 USNO-B1 99.99 19.01 99.99
238.7955 -54.0409 14.9 -1 USNO-B1 17.24 16.07 16.59
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 29 in the list of sources is a candidate afterglow for 1053220_g4082 with genie
ra=238.82490 (15:55:17.98) dec=-54.06540 (-54:03:55.5) +/- 0.7" mag=19.93+/-0.19
dist=71.0 REFID=46 major=0.7 minor=0.7 flag=0
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
238.8181 -54.0634 16.1 -1 USNO-B1 21.02 19.37 20.10
238.8253 -54.0651 1.2 -1 USNO-B1 18.71 17.18 17.86 *
238.8207 -54.0660 9.1 -1 USNO-B1 99.99 19.83 99.99
238.8337 -54.0648 18.7 -1 USNO-B1 15.52 13.85 14.59
238.8208 -54.0688 14.9 -1 USNO-B1 99.99 18.97 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 39 in the list of sources is a candidate afterglow for 1053220_g4082 with genie
ra=238.77850 (15:55:06.84) dec=-54.05287 (-54:03:10.3) +/- 0.6" mag=16.48+/-0.14
dist=89.1 REFID=24 major=0.9 minor=0.9 flag=3 (neighbor+blended)
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
238.7863 -54.0558 19.6 -1 USNO-B1 17.20 16.10 16.59
238.7795 -54.0525 2.4 -1 USNO-B1 15.52 14.04 14.70 *
238.7782 -54.0548 6.9 -1 USNO-B1 99.99 19.37 99.99
238.7780 -54.0497 11.6 -1 USNO-B1 99.99 19.44 99.99
238.7734 -54.0551 13.5 -1 USNO-B1 19.88 18.81 19.29
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 40 in the list of sources is a candidate afterglow for 1053220_g4082 with genie
ra=238.77641 (15:55:06.34) dec=-54.04699 (-54:02:49.2) +/- 0.6" mag=16.25+/-0.14
dist=90.1 REFID=19 major=0.8 minor=0.8 flag=0
This source is near the edge of image (0.977)
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
238.7843 -54.0484 17.4 -1 USNO-B1 20.14 19.47 19.77
238.7780 -54.0497 10.2 -1 USNO-B1 99.99 19.44 99.99
238.7773 -54.0444 9.6 -1 USNO-B1 19.08 18.01 18.49
238.7755 -54.0464 2.8 -1 USNO-B1 14.60 13.14 13.79 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 5.25" or brighter than 12 mag
-----------------
Entry 45 in the list of sources is a candidate afterglow for 1053220_g4082 with genie
ra=238.84727 (15:55:23.35) dec=-54.06624 (-54:03:58.5) +/- 0.6" mag=17.36+/-0.14
dist=94.2 REFID=42 major=0.9 minor=0.9 flag=3 (neighbor+blended)
This source is near the edge of image (0.874)
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
238.8399 -54.0656 15.7 -1 USNO-B1 99.99 19.02 99.99
238.8421 -54.0651 11.7 -1 USNO-B1 19.54 18.00 18.68
238.8478 -54.0664 1.3 -1 USNO-B1 16.94 15.84 16.33 *
238.8453 -54.0683 8.5 -1 USNO-B1 19.47 18.55 18.96
238.8519 -54.0652 10.5 -1 USNO-B1 17.48 16.07 16.70
238.8456 -54.0702 14.7 -1 USNO-B1 19.24 18.55 18.85
238.8486 -54.0684 8.4 -1 USNO-B1 16.53 15.32 15.86
238.8528 -54.0647 12.9 -1 USNO-B1 17.21 15.88 16.47
238.8518 -54.0677 11.0 -1 USNO-B1 19.09 17.89 18.42
238.8545 -54.0695 19.2 -1 USNO-B1 20.27 18.89 19.50
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 5.25" or brighter than 12 mag
-----------------
Entry 46 in the list of sources is a candidate afterglow for 1053220_g4082 with genie
ra=238.85085 (15:55:24.20) dec=-54.06554 (-54:03:56.0) +/- 0.6" mag=18.59+/-0.15
dist=97.4 REFID=44 major=0.9 minor=0.8 flag=3 (neighbor+blended)
This source is near the edge of image (0.910)
Found 8 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
238.8421 -54.0651 18.6 -1 USNO-B1 19.54 18.00 18.68
238.8478 -54.0664 7.3 -1 USNO-B1 16.94 15.84 16.33
238.8453 -54.0683 15.3 -1 USNO-B1 19.47 18.55 18.96
238.8519 -54.0652 2.6 -1 USNO-B1 17.48 16.07 16.70 *
238.8486 -54.0684 11.4 -1 USNO-B1 16.53 15.32 15.86
238.8528 -54.0647 5.1 -1 USNO-B1 17.21 15.88 16.47 *
238.8518 -54.0677 8.1 -1 USNO-B1 19.09 17.89 18.42
238.8545 -54.0695 16.1 -1 USNO-B1 20.27 18.89 19.50
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 5.25" or brighter than 12 mag
-----------------
Entry 63 in the list of sources is a candidate afterglow for 1053220_g4082 with genie
ra=238.82564 (15:55:18.15) dec=-54.08042 (-54:04:49.5) +/- 0.7" mag=19.36+/-0.17
dist=124.7 REFID=63 major=0.7 minor=0.3 flag=0
This source is near the edge of image (1.003)
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
238.8220 -54.0767 15.4 -1 USNO-B1 16.84 15.73 16.23
238.8236 -54.0776 11.1 -1 USNO-B1 19.59 17.76 18.57
238.8213 -54.0797 9.5 -1 USNO-B1 18.61 17.15 17.80
238.8267 -54.0809 2.8 -1 USNO-B1 16.20 15.03 15.55 *
238.8201 -54.0835 16.1 -1 USNO-B1 19.49 18.39 18.88
238.8287 -54.0842 15.2 -1 USNO-B1 18.98 18.18 18.54
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 5.25" or brighter than 12 mag
There are 77760.688 counts in the bkg source region of 5098.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 15.253 counts/pixel (5-sig UL in 4" is 19.87 mag) for 1053220_g4082
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.86, BAT distances < 200",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 1053220_644410429_210603d10h59m33s266565usUT_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(238.8197,-54.0541,45")
fk5;-circle(238.819038974069,-54.0447706309439,6")
fk5;-circle(238.826878843773,-54.0462023533476,6")
fk5;-circle(238.825775451239,-54.0433834513214,6")
fk5;-circle(238.814829871252,-54.0405656020625,6")
fk5;-circle(238.826757223065,-54.0509858342649,6")
fk5;-circle(238.824971494457,-54.0532971161371,6")
fk5;-circle(238.80486025269,-54.0452543642217,6")
fk5;-circle(238.832104984911,-54.0532985584427,6")
fk5;-circle(238.805462309392,-54.0551566266839,6")
fk5;-circle(238.830557150448,-54.0572393339474,6")
fk5;-circle(238.800838529878,-54.0566962166729,6")
fk5;-circle(238.803549693269,-54.0627832470327,6")
fk5;-circle(238.806154087173,-54.0639542258609,6")
fk5;-circle(238.824897476481,-54.0654044646558,6")
fk5;-circle(238.833481991787,-54.0647186707771,6")
image paragraph message for exposure 2 of trigger 1053220
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: partial overlap
SRCLIST PROBLEM: srclist filled telemetry buffer
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 GRB210603 (Swift/BAT trigger 1053220) at 09:45:46 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 4055 seconds after the BAT trigger. No credible afterglow candidate
has been found in the initial data products. The 2.7'x2.7' sub-image covers 25%
of the BAT error circle. The typical 3-sigma upper limit has been about 19.6
mag. The 8'x8' region for the list of sources generated on-board covers 100% of
the BAT error circle. The list of sources is typically complete to about 18
mag. No correction has been made for the large, but uncertain, extinction
expected.
------- notes for trigger 1053220 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 210603d10h59m36s039303usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1053220
-expid=644410429 -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/1053220/
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. No XRT position found for
srclist. No XRT position found for Genie image. BAT position found.
UVOT exposure began at MET 644410429.26832 or about 2021:154:10:53:44 UT
Found 2156 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 38% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 34 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 18.66 mag.
Found 64 source(s) in Genie image catalog. Found 14 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 19.86 mag. Found 436 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
40% of the Genie image region.
Genie image analysis:
Found 77760.7 counts in the large background region of 5098.0 pixels or a rate
of 15.253 counts/pixel in a radius of 45.0 arcsec. Based on this background,
the typical 5-sigma UL at a random point in the Genie image is 19.69 mag. for a
4-arcsec aperture. The number of srclist sources filled the available
telemetry. The weakest source detected was 18.74 mag.
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?
644410429 4055 WHITE srclist found no candidates.
644410429 4055 WHITE image found no candidates.
List afterglow candidates for other finding charts.
644406474 100 WHITE srclist found no candidates.
644406474 100 WHITE 238.80991 -54.08159 19.30/19.4 129.5 image Yes
------- Tokens for Quick GCN -------