image overlap message for exposure 1 of trigger 1114937
uvot_overlap.pl vrs. 2010-12-20b fem started at 220707d00h01m42s392289usUT
The observation of trigger 1114937 started 2022-07-06T16:11:31.1
Examining file ./1114937_g136_uvot_sky_image.fits
The exposure ID is 678816691
The exposure time is 149.857 (seconds)
The filter is WHITE.
The uvot region is centered at (0.5922,-16.3889) with a roll angle of 71.3
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 (0.5870,-16.3910) with a radius of 3.000 arc min
This is 0.324 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 (0.6043,-16.4112) with a radius of 0.037 arc min
This is 1.508 arc min from the center of the uvot region
The area of the XRT error circle is 0.004 sq. arc min
The UVOT/XRT overlap is 0.004 sq. arc min or 1.00 of the XRT error circle
image afterglow message for exposure 1 of trigger 1114937
find_uvot_ag.pl vrs. 2020-10-30 fem started at 220707d00h01m48s031628usUT
Observation start time is 2022-07-06T16:11:31.1
Examining file ./1114937_g136_uvot_catalog_image.fits
The exposure ID is 678816691
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 4 detected source(s) for 1114937_g136
Aspect correction adds 0.00204 degrees (0.488 sec of time = 7.03 arc sec) to RA
Aspect correction adds -0.00031 degrees (-1.10 arcsec) to Dec
Total aspect correction is 7.11 arcsec
Star catalogs centered at 0.5845 , -16.3856 with radius 2.53 arc min.
n_usno: 36 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 3 matched entries is 0.252" for 1114937_g136
Mean and std. dev of mag. difference (MAG_DELTA) are 0.775 and 0.252 for 1114937_g136
Found 1 entries without IDs and 1 entries that are acceptable afterglow candidates for 1114937_g136.
Acceptable entries have no ID, XRT distances < 5.5", 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= 0.5870 (00:02:20.88) DEC=-16.3910 (-16:23:27.6)
XRT distances are from RA= 0.6043 (00:02:25.03) DEC=-16.4112 (-16:24:40.4)
-----------------
Entry 2 in the list of sources is a candidate afterglow for 1114937_g136 with genie
ra=0.56926 (00:02:16.62) dec=-16.40641 (-16:24:23.1) +/- 0.8" mag=19.70+/-0.17
dist=122.2 REFID=1 major=1.8 minor=1.6 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 82.6 arc sec from the BAT position.
This source is near the edge of image (0.935)
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
0.5692 -16.4112 17.3 -1 USNO-B1 13.79 12.99 13.35
0.5668 -16.4106 17.3 -1 USNO-B1 20.49 99.99 99.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 1.8
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
There are 63355.375 counts in the bkg source region of 6309.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 10.042 counts/pixel (5-sig UL in 4" is 20.10 mag) for 1114937_g136
There are 2028.5233 counts in the xrt source region of 196.00000 pixels.
Rate in xrt region with 8 arcsec radius is 10.350 counts/pixel for 1114937_g136
XRT source is too far (90.5536901884318") from center -- do not compute local background.
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 20.65, XRT distances < 5.5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 1114937_678816691_220707d00h01m48s031628usUT_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(0.5922,-16.3889,45")
Region file: 1114937_678816691_220707d00h01m48s031628usUT_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(0.60429,-16.41122,8")
image paragraph message for exposure 1 of trigger 1114937
------ Start for Possible Stand-alone Circular ----
In response to GRB220706 (Swift/BAT trigger 1114937) at 16:09:14 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 107 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
0.025.
------- notes for trigger 1114937 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 220707d00h01m53s044060usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1114937
-expid=678816691 -meonly -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/1114937/
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 678816691.0572 or about 2022:187:16:11:26 UT
Found 233 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 4% of the srclist region. Found 12 sources in
srclist catalog. Found 0 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 4 source(s) in Genie image catalog. Found 1 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 20.65 mag. Found 32 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 3% of the
Genie image region.
Genie image analysis:
Found 63355.4 counts in the large background region of 6309.0 pixels or a rate
of 10.042 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 19.92 mag. for a
4-arcsec aperture.
Found 2028.5 counts in the XRT position region of 196.0 pixels or a rate of
10.349 counts/pixel in a radius of 8.0 arcsec. The net count rate (using large
background region) at the XRT position is 0.402 +/- 0.305 (1-sigma) cps or
20.60 mag and a range from 19.98 to 22.14 mag. The 3-sigma UL at the XRT
position is 1.316 cps or 19.31 mag. The closest srclist source has ra= 0.5997
dec= -16.4032 mag=18.60 sep=32.83". The closest Genie source has ra= 0.5997
dec= -16.4034 mag=18.24 sep=32.36".
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?
678816691 107 WHITE srclist found no candidates.
678816691 107 WHITE image found no candidates.
List afterglow candidates for other finding charts.
678816903 319 ? srclist data are not available.
678816903 319 U image found no candidates.
678817459 875 WHITE srclist found no candidates.
678817459 875 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: -16.41122
GRB_ERROR: 5.5
GRB_RA: 0.60429
IMAGE_START_TIME: 16:11:26
MAGNITUDE: 19.3
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT