srclist overlap message for exposure 1 of trigger 912102
uvot_overlap.pl vrs. 2010-12-20b fem started at 190630d17h37m54s786206usUT
The observation of trigger 912102 started 2019-06-30T06:03:37.2
Examining file ./912102_g88_uvot_sky_srclist.fits
The exposure ID is 583567417
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (223.6594,41.5238) with a roll angle of 310.4
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 (223.7292,41.5284) with a radius of 2.000 arc min
This is 3.146 arc min from the center of the uvot region
The area of the BAT error circle is 12.57 sq. arc min
The UVOT/BAT overlap is 10.10 sq. arc min or 0.80 of the BAT error circle
The XRT error circle is centered at (223.7003,41.5261) with a radius of 0.052 arc min
This is 1.840 arc min from the center of the uvot region
The area of the XRT error circle is 0.008 sq. arc min
The UVOT/XRT overlap is 0.008 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 912102
find_uvot_ag.pl vrs. 2017-02-17 fem started at 190630d17h37m57s286377usUT
Observation start time is 2019-06-30T06:03:37.2
Examining file ./912102_g88_uvot_catalog_srclist.fits
The exposure ID is 583567417
The exposure is 65.920 sec.
The bin size is 2 pixels
The filter is WHITE
There are 17 detected source(s) for 912102_g88
Aspect correction adds -0.00041 degrees (-0.098 sec of time = -1.10 arc sec) to RA
Aspect correction adds 0.00056 degrees ( 2.00 arcsec) to Dec
Total aspect correction is 2.28 arcsec
Star catalogs centered at 223.6823 , 41.5075 with radius 6.09 arc min.
n_usno: 260 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 14 matched entries is 0.597" for 912102_g88
Mean and std. dev of mag. difference (MAG_DELTA) are 2.176 and 0.462 for 912102_g88
Found 3 entries without IDs and 2 entries that are acceptable afterglow candidates for 912102_g88.
Acceptable entries have no ID, XRT distances < 7.75", 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=223.7292 (14:54:55.00) DEC=41.5284 (+41:31:42.4)
XRT distances are from RA=223.7003 (14:54:48.06) DEC=41.5261 (+41:31:34.1)
-----------------
Entry 2 in the list of sources is a candidate afterglow for 912102_g88 with 5x5 stamp
ra=223.66754 (14:54:40.21) dec=41.50390 (+41:30:14.0) +/- 1.1" mag=20.59+/-0.35
dist=119.1 REFID=14
*** The position of this source is inconsistent with the XRT position.
The position is 61.7 arc sec from the BAT position.
src: 2 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
223.6670 41.5047 3.2 -1 USNO-B1 14.80 13.88 14.29 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 3 in the list of sources is a candidate afterglow for 912102_g88 with 5x5 stamp
ra=223.65141 (14:54:36.34) dec=41.53633 (+41:32:10.8) +/- 1.1" mag=20.71+/-0.35
dist=136.6 REFID=16
*** The position of this source is inconsistent with the XRT position.
The position is 72.8 arc sec from the BAT position.
src: 3 distr. of nearby unmatched sources: 0 0 0 0 0
Found 2 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
223.6506 41.5362 2.3 -1 USNO-B1 18.57 17.58 18.02 *
223.6497 41.5369 5.1 -1 USNO-B1 99.99 20.13 99.99
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 18.77, XRT distances < 7.75",
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 1 of trigger 912102
IMAGE PROBLEM: no overlap
------ Start for Possible Stand-alone Circular ----
In response to GRB190630 (Swift/BAT trigger 912102) at 06:02:08 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 66 seconds with the White filter
starting 65 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 0.01.
------- notes for trigger 912102 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 190630d17h38m04s540027usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=912102
-expid=583567417 -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/912102/
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 583567417.23432 or about 2019:181:06:03:32 UT
Found 256 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 4% of the srclist region. Found 17 sources in
srclist catalog. Found 3 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
18.77 mag.
Found 5 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 20.53 mag. Found 37 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 4% of the
Genie image region.
Genie image analysis:
Found 15315.6 counts in the large background region of 6306.0 pixels or a rate
of 2.429 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 19.98 mag. for a
4-arcsec aperture. The closest srclist source has ra= 223.6950 dec= 41.5306
mag=19.67 sep=21.28". The closest Genie source has ra= 223.6787 dec= 41.5285
mag=21.07 sep=58.82".
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?
583567417 65 WHITE srclist found no candidates.
583567417 65 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: 41.52614
GRB_ERROR: 7.75
GRB_RA: 223.70025
IMAGE_START_TIME: 06:03:32
MAGNITUDE: 18.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT