srclist overlap message for exposure 1 of trigger 1015088
uvot_overlap.pl vrs. 2010-12-20b fem started at 201229d14h55m05s037818usUT
The observation of trigger 1015088 started 2020-12-28T11:01:53.9
Examining file ./1015088_g142_uvot_sky_srclist.fits
The exposure ID is 630932513
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (210.7161,48.1922) with a roll angle of 121.2
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 (210.7080,48.1970) with a radius of 3.000 arc min
This is 0.432 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 (210.6885,48.1977) with a radius of 0.028 arc min
This is 1.154 arc min from the center of the uvot region
The area of the XRT error circle is 0.003 sq. arc min
The UVOT/XRT overlap is 0.003 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 1015088
find_uvot_ag.pl vrs. 2020-10-30 fem started at 201229d14h55m08s984302usUT
Observation start time is 2020-12-28T11:01:53.9
Examining file ./1015088_g142_uvot_catalog_srclist.fits
The exposure ID is 630932513
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 38 detected source(s) for 1015088_g142
Aspect correction adds -0.00014 degrees (-0.035 sec of time = -0.35 arc sec) to RA
Aspect correction adds -0.00058 degrees (-2.09 arcsec) to Dec
Total aspect correction is 2.11 arcsec
Star catalogs centered at 210.7159 , 48.1971 with radius 5.52 arc min.
n_usno: 253 n_gsc: 0
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.92984
RA DEC Mag Color
bright star 0: 210.79012 (14:03:09.63) 48.19421 (+48:11:39.1) 11.93 USNO-V
Mean distance difference (CAT_DELTA) for 22 matched entries is 0.618" for 1015088_g142
Mean and std. dev of mag. difference (MAG_DELTA) are 1.124 and 0.681 for 1015088_g142
Found 16 entries without IDs and 1 entries that are acceptable afterglow candidates for 1015088_g142.
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.
15 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=210.7080 (14:02:49.92) DEC=48.1970 (+48:11:49.2)
XRT distances are from RA=210.6885 (14:02:45.23) DEC=48.1977 (+48:11:51.9)
*** WARNING 42 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1015088_g142 with 5x5 stamp
ra=210.68908 (14:02:45.38) dec=48.19812 (+48:11:53.2) +/- 1.1" mag=18.59+/-0.35
dist=2.0 REFID=13
src: 0 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
210.6914 48.2000 8.8 -1 USNO-B1 21.38 19.88 20.55
##### 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=210.68908 (14:02:45.38) dec=48.19812 (+48:11:53.2) +/- 1.1" mag=18.59+/-0.35 dist=2.0 REFID=13
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 1 of trigger 1015088
------ Start for Possible Stand-alone Circular ----
In response to GRB201229 (Swift/BAT trigger 1015088) at 10:59:30 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 116 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 14:02:45.41 = 210.68921
DEC(J2000) = +48:11:53.8 = 48.19828
with a 90%-confidence error radius of about 0.62 arc sec. This position is 2.6
arc sec. from the center of the XRT error circle. The estimated magnitude is
18.19 with a 1-sigma error of about 0.14. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.01.
------- notes for trigger 1015088 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 201229d14h55m14s011064usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1015088
-expid=630932513 -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/1015088/
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 630932513.88426 or about 2020:364:11:01:48 UT
Found 249 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 5% of the srclist region. Found 38 sources in
srclist catalog. Found 16 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 5 source(s) in Genie image catalog. 1 source(s) are within 10.0" of the
xrt position. Found 1 Genie image source(s) without IDs. There are 1 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.90 mag. Found 59 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 5% of the Genie image region.
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?
630932513 115 WHITE 210.68908 48.19812 18.59/19.2 2.0 srclist Yes
630932513 115 WHITE 210.68921 48.19828 18.19/20.9 2.6 image Yes
List afterglow candidates for other finding charts.
630932671 273 U 210.68893 48.19819 18.52/18.1 2.3 srclist Yes
630932671 273 U 210.68900 48.19813 18.11/20.7 2.1 image Yes
630933275 877 WHITE srclist found no candidates.
630933275 877 WHITE 210.68902 48.19815 19.10/20.5 2.1 image Yes
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 48.19828
GRB_ERROR: 0.62
GRB_RA: 210.68921
IMAGE_START_TIME: 11:01:48
MAGNITUDE: 18.19
MAG_ERROR: 0.14
MESSAGE_TYPE: ACK
SOURCE: XRT