srclist overlap message for exposure 1 of trigger 1095288
uvot_overlap.pl vrs. 2010-12-20b fem started at 220306d20h10m11s222949usUT
The observation of trigger 1095288 started 2022-03-06T18:17:35.3
Examining file ./1095288_g117_uvot_sky_srclist.fits
The exposure ID is 668283455
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (5.3771,71.3485) with a roll angle of 198.4
It is square with sides of 8.03 arc min. for an area of 64.51 sq arc min
The BAT error circle is centered at (5.3780,71.3540) with a radius of 3.000 arc min
This is 0.332 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 28.27 sq. arc min or 1.00 of the BAT error circle
The XRT error circle is centered at (5.3879,71.3636) with a radius of 0.038 arc min
This is 0.931 arc min from the center of the uvot region
The area of the XRT error circle is 0.005 sq. arc min
The UVOT/XRT overlap is 0.005 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 1095288
find_uvot_ag.pl vrs. 2020-10-30 fem started at 220306d20h10m15s555805usUT
Observation start time is 2022-03-06T18:17:35.3
Examining file ./1095288_g117_uvot_catalog_srclist.fits
The exposure ID is 668283455
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 125 detected source(s) for 1095288_g117
Aspect correction adds -0.00055 degrees (-0.131 sec of time = -0.63 arc sec) to RA
Aspect correction adds -0.00096 degrees (-3.44 arcsec) to Dec
Total aspect correction is 3.50 arcsec
Star catalogs centered at 5.3820 , 71.3482 with radius 6.16 arc min.
n_usno: 1235 n_gsc: 0
*** WARNING -- bright star catalog has 2 entries brighter than 12 mag
The brightest has mag 11.1102
RA DEC Mag Color
bright star 0: 5.31739 (00:21:16.17) 71.31271 (+71:18:45.8) 11.11 USNO-V
bright star 1: 5.55025 (00:22:12.06) 71.41569 (+71:24:56.5) 11.84 USNO-V
Mean distance difference (CAT_DELTA) for 120 matched entries is 0.694" for 1095288_g117
Mean and std. dev of mag. difference (MAG_DELTA) are 1.506 and 0.534 for 1095288_g117
Found 9 entries without IDs and 3 entries that are acceptable afterglow candidates for 1095288_g117.
Acceptable entries have no ID, XRT distances < 5.75", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
3 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA= 5.3780 (00:21:30.72) DEC=71.3540 (+71:21:14.4)
XRT distances are from RA= 5.3879 (00:21:33.10) DEC=71.3636 (+71:21:49.0)
-----------------
Entry 13 in the list of sources is a candidate afterglow for 1095288_g117 with 3x3 stamp
ra=5.45207 (00:21:48.50) dec=71.35058 (+71:21:02.1) +/- 1.1" mag=18.95+/-0.35
dist=87.5 REFID=86
*** The position of this source is inconsistent with the XRT position.
The position is 86.1 arc sec from the BAT position.
src: 13 distr. of nearby unmatched sources: 0 0 0 0 0
Found 2 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
5.4461 71.3512 7.2 -1 USNO-B1 13.98 12.63 13.23 *
5.4659 71.3527 17.7 -1 USNO-B1 21.59 19.07 20.19
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 44 in the list of sources is a candidate afterglow for 1095288_g117 with 3x3 stamp
ra=5.25437 (00:21:01.05) dec=71.34330 (+71:20:35.9) +/- 1.1" mag=19.09+/-0.35
dist=170.3 REFID=105
*** The position of this source is inconsistent with the XRT position.
The position is 147.5 arc sec from the BAT position.
src: 44 distr. of nearby unmatched sources: 1 0 0 0 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
5.2581 71.3441 5.3 -1 USNO-B1 16.64 14.75 15.59
5.2556 71.3437 2.1 -1 USNO-B1 17.63 16.36 16.93 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 72 in the list of sources is a candidate afterglow for 1095288_g117 with 3x3 stamp
ra=5.44379 (00:21:46.51) dec=71.40178 (+71:24:06.4) +/- 1.1" mag=19.62+/-0.35
dist=151.7 REFID=123
*** The position of this source is inconsistent with the XRT position.
The position is 187.9 arc sec from the BAT position.
src: 72 distr. of nearby unmatched sources: 0 0 0 0 0
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
5.4439 71.4024 2.2 -1 USNO-B1 19.18 17.88 18.45 *
5.4518 71.4023 9.4 -1 USNO-B1 17.74 16.27 16.93
5.4572 71.4031 16.1 -1 USNO-B1 20.72 19.14 19.84
5.4557 71.4056 19.4 -1 USNO-B1 20.17 18.43 19.21
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
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 19.22, XRT distances < 5.75",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
srclist paragraph message for exposure 1 of trigger 1095288
------ Start for Possible Stand-alone Circular ----
In response to GRB220306 (Swift/BAT trigger 1095288) at 18:15:37 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 89 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 100% of
the XRT 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
XRT error circle. The list of sources is typically complete to about 18 mag. No
correction has been made for the expected extinction corresponding to E(B-V) of
0.578.
------- notes for trigger 1095288 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 220306d20h10m21s212872usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1095288
-expid=668283455 -meonly -msg_srclist
Results from standard processing of UVOT TDRSS data for this trigger should be
available at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/1095288/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
XRT position found for srclist. XRT position found for Genie image. BAT
position found.
UVOT exposure began at MET 668283455.26312 or about 2022:065:18:17:30 UT
Found 1231 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 22% of the srclist region. Found 125 sources in
srclist catalog. Found 9 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
19.22 mag.
Found 33 source(s) in Genie image catalog. Found 2 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 20.30 mag. Found 235 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
23% of the Genie image region.
Genie image analysis:
Found 109556.6 counts in the large background region of 5753.0 pixels or a rate
of 19.043 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 19.58 mag. for a
4-arcsec aperture.
Found 3985.7 counts in the XRT position region of 200.0 pixels or a rate of
19.928 counts/pixel in a radius of 8.0 arcsec. The net count rate (using large
background region) at the XRT position is 1.180 +/- 0.428 (1-sigma) cps or
19.42 mag and a range from 19.09 to 19.91 mag. The 3-sigma UL at the XRT
position is 2.464 cps or 18.63 mag. The closest srclist source has ra= 5.4088
dec= 71.3717 mag=18.66 sep=37.80". The closest Genie source has ra= 5.3953
dec= 71.3676 mag=19.24 sep=16.76".
This paragraph is only useful if the XRT position is grossly wrong. There are 1
candidate(s) in the image data with mag < 19.74 inside the BAT error region,
but outside the XRT error region. The brightest such source is at RA=5.45176
(00:21:48.42), DEC=71.35055 (+71:21:02.0) (J2000). It has a mag of 18.95. It is
85.8" 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 89 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 00:21:48.42 = 5.45176
DEC(J2000) = +71:21:02.0 = 71.35055
with a 90%-confidence error radius of about 0.65 arc sec. The estimated
magnitude is 18.95 with a 1-sigma error of about 0.16. No correction has been
made for the expected extinction corresponding to E(B-V) of 0.578.
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?
668283455 88 WHITE srclist found no candidates.
668283455 88 WHITE image found no candidates.
List afterglow candidates for other finding charts.
668283667 300 U srclist found no candidates.
668283667 300 U image found no candidates.
668284247 880 WHITE srclist found no candidates.
668284247 880 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 71.36361
GRB_ERROR: 5.75
GRB_RA: 5.38792
IMAGE_START_TIME: 18:17:30
MAGNITUDE: 18.6
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT