srclist overlap message for exposure 3 of trigger 1034325
uvot_overlap.pl vrs. 2010-12-20b fem started at 210223d19h23m50s942701usUT
The observation of trigger 1034325 started 2021-02-22T22:52:14.8
Examining file ./1034325_g887_uvot_sky_srclist.fits
The exposure ID is 635727134
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (154.6209,-14.9049) with a roll angle of 184.2
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 (154.6210,-14.8980) with a radius of 3.000 arc min
This is 0.414 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 (154.6058,-14.9317) with a radius of 0.023 arc min
This is 1.831 arc min from the center of the uvot region
The area of the XRT error circle is 0.002 sq. arc min
The UVOT/XRT overlap is 0.002 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 3 of trigger 1034325
find_uvot_ag.pl vrs. 2020-10-30 fem started at 210223d19h24m06s812039usUT
Observation start time is 2021-02-22T22:52:14.8
Examining file ./1034325_g887_uvot_catalog_srclist.fits
The exposure ID is 635727134
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 190 detected source(s) for 1034325_g887
*** 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 1034325_g887 has mag 19.53
Aspect correction adds -0.00068 degrees (-0.163 sec of time = -2.37 arc sec) to RA
Aspect correction adds -0.00078 degrees (-2.82 arcsec) to Dec
Total aspect correction is 3.68 arcsec
Star catalogs centered at 154.6175 , -14.9011 with radius 8.34 arc min.
n_usno: 682 n_gsc: 0
*** WARNING -- bright star catalog has 7 entries brighter than 12 mag
The brightest has mag 9.9766
RA DEC Mag Color
bright star 0: 154.63921 (10:18:33.41) -14.92453 (-14:55:28.3) 10.94 USNO-V
bright star 1: 154.61614 (10:18:27.87) -14.94267 (-14:56:33.6) 11.87 USNO-V
bright star 2: 154.66005 (10:18:38.41) -14.94424 (-14:56:39.2) 10.49 USNO-V
bright star 3: 154.62731 (10:18:30.56) -14.84006 (-14:50:24.2) 9.98 USNO-V
bright star 4: 154.55968 (10:18:14.32) -14.81678 (-14:49:00.4) 11.41 USNO-V
bright star 5: 154.61465 (10:18:27.52) -14.79106 (-14:47:27.8) 10.03 USNO-V
bright star 6: 154.64444 (10:18:34.66) -15.02114 (-15:01:16.1) 11.87 USNO-V
Mean distance difference (CAT_DELTA) for 75 matched entries is 0.725" for 1034325_g887
Mean and std. dev of mag. difference (MAG_DELTA) are 1.687 and 0.675 for 1034325_g887
Found 115 entries without IDs and 1 entries that are acceptable afterglow candidates for 1034325_g887.
Acceptable entries have no ID, XRT distances < 5", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
113 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=154.6210 (10:18:29.04) DEC=-14.8980 (-14:53:52.8)
XRT distances are from RA=154.6058 (10:18:25.38) DEC=-14.9317 (-14:55:54.1)
*** WARNING 60 per cent of entries have no IDs.
-----------------
Entry 15 in the list of sources is a candidate afterglow for 1034325_g887 with 3x3 stamp
ra=154.60590 (10:18:25.42) dec=-14.93200 (-14:55:55.2) +/- 1.1" mag=18.40+/-0.35
dist=1.2 REFID=52
src: 15 distr. of nearby unmatched sources: 0 0 0 0 0
Found 1 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
154.6024 -14.9328 12.7 -1 USNO-B1 21.73 20.60 21.10
##### This source remains a candidate #####
It has no entries 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:
Unmatched source ra=154.60590 (10:18:25.42) dec=-14.93200 (-14:55:55.2) +/- 1.1" mag=18.40+/-0.35 dist=1.2 REFID=52
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",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 1 good candidate(s) found.
srclist paragraph message for exposure 3 of trigger 1034325
------ Start for Possible Stand-alone Circular ----
In response to GRB210222 (Swift/BAT trigger 1034325) at 22:37:26 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 862 seconds after the BAT trigger. There is a candidate afterglow in
the list of sources generated on-board at
RA(J2000) = 10:18:25.42 = 154.60590
DEC(J2000) = -14:55:55.2 = -14.93200
with a 90%-confidence error radius of about 1.10 arc sec. This position is 1.2
arc sec. from the center of the XRT error circle. The estimated magnitude is
18.40. No correction has been made for the expected extinction corresponding to
E(B-V) of 0.102.
------- notes for trigger 1034325 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 210223d19h24m08s899944usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1034325
-expid=635727134 -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/1034325/
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 635727134.83606 or about 2021:053:22:52:09 UT
Found 678 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 6% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 115 srclist
source(s) without IDs. There are 1 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 19.22 mag.
Found 10 source(s) in Genie image catalog. Found 4 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 20.74 mag. Found 63 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
7% of the Genie image region. The closest Genie source has ra= 154.6077 dec=
-14.9189 mag=18.77 sep=46.47".
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?
635727134 861 WHITE 154.60590 -14.93200 18.40/19.2 1.2 srclist Yes
635727134 861 WHITE image found no candidates.
List afterglow candidates for other finding charts.
635726373 100 WHITE 154.60606 -14.93215 17.65/19.2 2.0 srclist Yes
635726373 100 WHITE image found no candidates.
635726531 258 U 154.60617 -14.93171 17.64/18.1 1.5 srclist Yes
635726531 258 U image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: -14.93200
GRB_ERROR: 1.10
GRB_RA: 154.60590
IMAGE_START_TIME: 22:52:09
MAGNITUDE: 18.40
MAG_ERROR: 0.4
MESSAGE_TYPE: ACK
SOURCE: XRT