image overlap message for exposure 1 of trigger 1181187
uvot_overlap.pl vrs. 2010-12-20b fem started at 230728d11h14m00s212029usUT
The observation of trigger 1181187 started 2023-07-28T02:52:14.9
Examining file ./1181187_g130_uvot_sky_image.fits
The exposure ID is 712205534
The exposure time is 149.857 (seconds)
The filter is WHITE.
The uvot region is centered at (343.5179,28.1779) with a roll angle of 40.9
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 (343.5390,28.1510) with a radius of 3.000 arc min
This is 1.963 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 6.13 sq. arc min or 0.22 of the BAT error circle
The XRT error circle is centered at (343.5157,28.1743) with a radius of 0.035 arc min
This is 0.242 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 1181187
find_uvot_ag.pl vrs. 2023-04-25a fem started at 230728d11h14m02s813695usUT
Observation start time is 2023-07-28T02:52:14.9
Examining file ./1181187_g130_uvot_catalog_image.fits
The exposure ID is 712205534
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 13 detected source(s) for 1181187_g130
Aspect correction adds 0.00179 degrees (0.429 sec of time = 5.68 arc sec) to RA
Aspect correction adds 0.00097 degrees ( 3.48 arcsec) to Dec
Total aspect correction is 6.66 arcsec
Star catalogs centered at 343.5162 , 28.1813 with radius 2.68 arc min.
n_usno: 122 n_gsc: 108
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 10.44734
RA DEC Mag Color
bright star 0: 343.55326 (22:54:12.78) 28.17351 (+28:10:24.7) 10.45 USNO-V
Mean distance difference (CAT_DELTA) for 13 matched entries is 0.502" for 1181187_g130
Mean and std. dev of mag. difference (MAG_DELTA) are 1.426 and 0.464 for 1181187_g130
Found 0 entries without IDs and 0 entries that are acceptable afterglow candidates for 1181187_g130.
Acceptable entries have no ID, XRT distances < 5.25", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
0 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=343.5390 (22:54:09.36) DEC=28.1510 (+28:09:03.6)
XRT distances are from RA=343.5157 (22:54:03.77) DEC=28.1743 (+28:10:27.6)
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
There are 41109.449 counts in the bkg source region of 6194.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 6.637 counts/pixel (5-sig UL in 4" is 20.32 mag) for 1181187_g130
There are 1284.6028 counts in the xrt source region of 200.00000 pixels.
Rate in xrt region with 8 arcsec radius is 6.423 counts/pixel for 1181187_g130
There are 7842.2051 counts in the xrt_bkg source region of 1201.0000 pixels.
Rate in xrt_bkg region from 15 to 25 arcsec is 6.530 counts/pixel (5-sig UL in 4" is 20.33 mag) for 1181187_g130
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 20.88, XRT distances < 5.25",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 1181187_712205534_230728d11h14m02s813695usUT_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(343.5179,28.1779,45")
fk5;-circle(343.518873505337,28.1809611087272,6")
fk5;-circle(343.520517563559,28.1914655098913,6")
Region file: 1181187_712205534_230728d11h14m02s813695usUT_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(343.51571,28.17433,8")
Region file: 1181187_712205534_230728d11h14m02s813695usUT_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(343.51571,28.17433,25")
fk5;-circle(343.51571,28.17433,15")
fk5;-circle(343.518873505337,28.1809611087272,6")
image paragraph message for exposure 1 of trigger 1181187
------ Start for Possible Stand-alone Circular ----
In response to GRB230728 (Swift/BAT trigger 1181187) at 02:50:03 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 99 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
0.080.
------- notes for trigger 1181187 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 230728d11h14m06s434516usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1181187
-expid=712205534 -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/1181187/
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 712205534.88254 or about 2023:209:02:52:09 UT
Found 448 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 9% of the srclist region. Found 84 sources in
srclist catalog. Found 29 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 13 source(s) in Genie image catalog. Found 0 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 20.88 mag. Found 118 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
11% of the Genie image region.
Genie image analysis:
Found 41109.4 counts in the large background region of 6194.0 pixels or a rate
of 6.637 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 20.15 mag. for a
4-arcsec aperture.
Found 1284.6 counts in the XRT position region of 200.0 pixels or a rate of
6.423 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is -0.142 +/- 0.258 (1-sigma) cps. The
3-sigma UL at the XRT position is 0.775 cps or 19.88 mag. The closest srclist
source has ra= 343.5186 dec= 28.1808 mag=19.51 sep=25.11". The closest Genie
source has ra= 343.5189 dec= 28.1810 mag=18.44 sep=25.90".
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?
712205534 99 WHITE srclist found no candidates.
712205534 99 WHITE image found no candidates.
List afterglow candidates for other finding charts.
712205746 311 U srclist found no candidates.
712205746 311 U image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 28.17433
GRB_ERROR: 5.25
GRB_RA: 343.51571
IMAGE_START_TIME: 02:52:09
MAGNITUDE: 19.9
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT