srclist overlap message for exposure 1 of trigger 1177054
uvot_overlap.pl vrs. 2010-12-20b fem started at 230629d04h16m36s784724usUT
The observation of trigger 1177054 started 2023-06-28T22:30:23.4
Examining file ./1177054_g252_uvot_sky_srclist.fits
The exposure ID is 709684223
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (171.8342,-11.4455) with a roll angle of 296.3
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 (171.8410,-11.4470) with a radius of 3.000 arc min
This is 0.410 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 (171.8487,-11.4637) with a radius of 0.035 arc min
This is 1.386 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
srclist afterglow message for exposure 1 of trigger 1177054
find_uvot_ag.pl vrs. 2023-04-25a fem started at 230629d04h16m38s977160usUT
Observation start time is 2023-06-28T22:30:23.4
Examining file ./1177054_g252_uvot_catalog_srclist.fits
The exposure ID is 709684223
The exposure is 149.846 sec.
The bin size is 2 pixels
The filter is WHITE
There are 19 detected source(s) for 1177054_g252
Aspect correction adds -0.00247 degrees (-0.593 sec of time = -8.72 arc sec) to RA
Aspect correction adds 0.00047 degrees ( 1.69 arcsec) to Dec
Total aspect correction is 8.88 arcsec
Star catalogs centered at 171.8371 , -11.4523 with radius 5.76 arc min.
n_usno: 277 n_gsc: 301
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.5598
RA DEC Mag Color
bright star 0: 171.75826 (11:27:01.98) -11.45581 (-11:27:20.9) 11.56 GSC-F
Mean distance difference (CAT_DELTA) for 19 matched entries is 0.584" for 1177054_g252
Mean and std. dev of mag. difference (MAG_DELTA) are 1.077 and 0.507 for 1177054_g252
Found 1 entries without IDs and 0 entries that are acceptable afterglow candidates for 1177054_g252.
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=171.8410 (11:27:21.84) DEC=-11.4470 (-11:26:49.2)
XRT distances are from RA=171.8487 (11:27:23.70) DEC=-11.4637 (-11:27:49.3)
Found NO acceptable entries.
Unidentified entry closest to XRT position is no. 17:
ra=171.91646 dec=-11.46762 +/- 1.1" mag=20.35+/-0.35 dist=239.3 REFID=19
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 < 5.25",
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 1177054
IMAGE PROBLEM: partial overlap
------ Start for Possible Stand-alone Circular ----
In response to GRB230628 (Swift/BAT trigger 1177054) at 22:26:10 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 221 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 2.1% 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
0.040.
------- notes for trigger 1177054 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 230629d04h16m42s454987usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1177054
-expid=709684223 -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/1177054/
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 709684223.40782 or about 2023:179:22:30:18 UT
Found 299 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 6% of the srclist region. Found 19 sources in
srclist catalog. Found 1 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 9 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 20.57 mag. Found 46 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 5% of the
Genie image region.
Genie image analysis:
Found 72662.4 counts in the large background region of 6202.0 pixels or a rate
of 11.716 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 19.84 mag. for a
4-arcsec aperture. The closest srclist source has ra= 171.8605 dec= -11.4737
mag=16.96 sep=54.96". The closest Genie source has ra= 171.8359 dec= -11.4617
mag=18.47 sep=45.98".
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?
709684223 220 WHITE srclist found no candidates.
709684223 220 WHITE image found no candidates.
List afterglow candidates for other finding charts.
709684873 870 WHITE srclist found no candidates.
709684873 870 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: -11.46369
GRB_ERROR: 5.25
GRB_RA: 171.84875
IMAGE_START_TIME: 22:30:18
MAGNITUDE: 18.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT