srclist overlap message for exposure 3 of trigger 1093592
uvot_overlap.pl vrs. 2010-12-20b fem started at 220117d23h37m39s026962usUT
The observation of trigger 1093592 started 2022-01-17T16:33:56.4
Examining file ./1093592_g904_uvot_sky_srclist.fits
The exposure ID is 664130036
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (91.5675,-28.4411) with a roll angle of 212.0
It is square with sides of 12.05 arc min. for an area of 145.15 sq arc min
The BAT error circle is centered at (91.5780,-28.4100) with a radius of 3.000 arc min
This is 1.946 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 (91.5722,-28.4376) with a radius of 0.038 arc min
This is 0.324 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 3 of trigger 1093592
find_uvot_ag.pl vrs. 2020-10-30 fem started at 220117d23h38m09s863202usUT
Observation start time is 2022-01-17T16:33:56.4
Examining file ./1093592_g904_uvot_catalog_srclist.fits
The exposure ID is 664130036
The exposure is 121.959 sec.
The bin size is 2 pixels
The filter is WHITE
There are 190 detected source(s) for 1093592_g904
*** WARNING -- the sources have filled the available telemetry buffer (190).
srclist_overlap returned: bat_overlap 1.000
srclist_overlap returned: xrt_overlap 1.000
Dimmest detected source in 1093592_g904 has mag 19.69
Aspect correction adds -0.00160 degrees (-0.384 sec of time = -5.07 arc sec) to RA
Aspect correction adds -0.00029 degrees (-1.05 arcsec) to Dec
Total aspect correction is 5.17 arcsec
Star catalogs centered at 91.5658 , -28.4415 with radius 8.75 arc min.
n_usno: 964 n_gsc: 0
*** WARNING -- bright star catalog has 6 entries brighter than 12 mag
The brightest has mag 8.16328
RA DEC Mag Color
bright star 0: 91.51358 (06:06:03.26) -28.46600 (-28:27:57.6) 11.13 USNO-V
bright star 1: 91.63366 (06:06:32.08) -28.45769 (-28:27:27.7) 8.16 USNO-V
bright star 2: 91.51795 (06:06:04.31) -28.49411 (-28:29:38.8) 11.51 USNO-V
bright star 3: 91.47240 (06:05:53.38) -28.46399 (-28:27:50.4) 11.73 USNO-V
bright star 4: 91.66909 (06:06:40.58) -28.42703 (-28:25:37.3) 10.92 USNO-V
bright star 5: 91.63503 (06:06:32.41) -28.36311 (-28:21:47.2) 11.77 USNO-V
Mean distance difference (CAT_DELTA) for 121 matched entries is 0.756" for 1093592_g904
Mean and std. dev of mag. difference (MAG_DELTA) are 1.488 and 0.533 for 1093592_g904
Found 71 entries without IDs and 1 entries that are acceptable afterglow candidates for 1093592_g904.
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.
68 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=91.5780 (06:06:18.72) DEC=-28.4100 (-28:24:36.0)
XRT distances are from RA=91.5722 (06:06:17.32) DEC=-28.4376 (-28:26:15.5)
*** WARNING 37 per cent of entries have no IDs.
-----------------
Entry 9 in the list of sources is a candidate afterglow for 1093592_g904 with 1x1 stamp
ra=91.60465 (06:06:25.12) dec=-28.41297 (-28:24:46.7) +/- 1.1" mag=18.88+/-0.35
dist=135.9 REFID=134
*** The position of this source is inconsistent with the XRT position.
The position is 85.1 arc sec from the BAT position.
src: 9 srclist_match has ID
src: 9 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
91.6020 -28.4131 8.4 -1 USNO-B1 15.56 14.70 15.08
91.6041 -28.4131 1.7 -1 USNO-B1 18.10 16.86 17.41 *
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 19.11, 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 3 of trigger 1093592
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: no overlap
SRCLIST PROBLEM: srclist filled telemetry buffer
See notes for more details.
------ Start for Possible Stand-alone Circular ----
In response to GRB220117 (Swift/BAT trigger 1093592) at 16:18:51 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 122 seconds with the White filter
starting 876 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 none of
the XRT error circle. 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 0.028.
------- notes for trigger 1093592 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 220117d23h38m12s773355usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1093592
-expid=664130036 -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/1093592/
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 664130036.42892 or about 2022:017:16:33:51 UT
Found 960 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 8% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 71 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 19.11 mag.
Found 3 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 19.31 mag. Found 56 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 9% of the
Genie image region. The Genie image is INCOMPLETE with 22886 null pixels.
Found no Genie image background information. The number of srclist sources
filled the available telemetry. The weakest source detected was 19.69 mag. The
closest srclist source has ra= 91.5525 dec= -28.4240 mag=18.01 sep=79.15". The
closest Genie source has ra= 91.5955 dec= -28.4483 mag=20.50 sep=83.08".
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?
664130036 876 WHITE srclist found no candidates.
664130036 876 WHITE image found no candidates.
List afterglow candidates for other finding charts.
664129321 161 WHITE srclist found no candidates.
664129321 161 WHITE image found no candidates.
664129480 320 U srclist found no candidates.
664129480 320 U image found no candidates.
------- Tokens for Quick GCN -------