srclist overlap message for exposure 3 of trigger 1014316
uvot_overlap.pl vrs. 2010-12-20b fem started at 201224d14h54m27s334435usUT
The observation of trigger 1014316 started 2020-12-23T18:13:22.2
Examining file ./1014316_g895_uvot_sky_srclist.fits
The exposure ID is 630440002
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (132.8631,71.1795) with a roll angle of 48.0
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 (132.7346,71.1764) with a radius of 1.400 arc min
This is 2.494 arc min from the center of the uvot region
The area of the BAT error circle is 6.16 sq. arc min
The UVOT/BAT overlap is 6.16 sq. arc min or 1.00 of the BAT error circle
The XRT error circle is centered at (132.7902,71.1792) with a radius of 0.030 arc min
This is 1.411 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 3 of trigger 1014316
find_uvot_ag.pl vrs. 2020-10-30 fem started at 201224d14h54m47s332021usUT
Observation start time is 2020-12-23T18:13:22.2
Examining file ./1014316_g895_uvot_catalog_srclist.fits
The exposure ID is 630440002
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 111 detected source(s) for 1014316_g895
Aspect correction adds 0.00203 degrees (0.487 sec of time = 2.36 arc sec) to RA
Aspect correction adds 0.00040 degrees ( 1.45 arcsec) to Dec
Total aspect correction is 2.77 arcsec
Star catalogs centered at 132.8495 , 71.1800 with radius 8.51 arc min.
n_usno: 503 n_gsc: 0
*** WARNING -- bright star catalog has 6 entries brighter than 12 mag
The brightest has mag 10.44852
RA DEC Mag Color
bright star 0: 132.82105 (08:51:17.05) 71.21744 (+71:13:02.8) 11.89 USNO-V
bright star 1: 132.69600 (08:50:47.04) 71.19861 (+71:11:55.0) 11.95 USNO-V
bright star 2: 132.99554 (08:51:58.93) 71.13296 (+71:07:58.7) 10.89 USNO-V
bright star 3: 132.84657 (08:51:23.18) 71.10735 (+71:06:26.5) 11.86 USNO-V
bright star 4: 132.58936 (08:50:21.45) 71.20356 (+71:12:12.8) 10.55 USNO-V
bright star 5: 133.09690 (08:52:23.26) 71.22759 (+71:13:39.3) 10.45 USNO-V
Mean distance difference (CAT_DELTA) for 48 matched entries is 0.735" for 1014316_g895
Mean and std. dev of mag. difference (MAG_DELTA) are 1.615 and 0.881 for 1014316_g895
Found 63 entries without IDs and 3 entries that are acceptable afterglow candidates for 1014316_g895.
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.
52 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=132.7346 (08:50:56.30) DEC=71.1764 (+71:10:34.9)
XRT distances are from RA=132.7902 (08:51:09.64) DEC=71.1792 (+71:10:45.2)
*** WARNING 56 per cent of entries have no IDs.
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1014316_g895 with 3x3 stamp
ra=132.83025 (08:51:19.26) dec=71.18631 (+71:11:10.7) +/- 1.1" mag=19.42+/-0.35
dist=53.1 REFID=108
*** The position of this source is inconsistent with the XRT position.
The position is 49.4 arc sec from the BAT position.
src: 1 distr. of nearby unmatched sources: 0 0 0 0 0
Found 0 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)
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 3 in the list of sources is a candidate afterglow for 1014316_g895 with 3x3 stamp
ra=132.78987 (08:51:09.57) dec=71.17972 (+71:10:47.0) +/- 1.1" mag=18.55+/-0.35
dist=1.8 REFID=37
src: 3 distr. of nearby unmatched sources: 0 0 0 0 0
Found 0 entries in star catalog(s) within 20.0" of the candidate.
##### This source remains a candidate #####
It has no entries within 4" or brighter than 13 mag
-----------------
Entry 7 in the list of sources is a candidate afterglow for 1014316_g895 with 3x3 stamp
ra=132.88956 (08:51:33.49) dec=71.20143 (+71:12:05.2) +/- 1.1" mag=19.23+/-0.35
dist=140.3 REFID=100
*** The position of this source is inconsistent with the XRT position.
The position is 109.4 arc sec from the BAT position.
src: 7 distr. of nearby unmatched sources: 0 0 0 0 0
Found 0 entries in star catalog(s) within 20.0" of the candidate.
*** If XRT position is correct, then this is NOT the afterglow
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=132.78987 (08:51:09.57) dec=71.17972 (+71:10:47.0) +/- 1.1" mag=18.55+/-0.35 dist=1.8 REFID=37
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 1014316
------ Start for Possible Stand-alone Circular ----
In response to GRB201223 (Swift/BAT trigger 1014316) at 17:58:26 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 869 seconds after the BAT trigger. There is a candidate afterglow in
the list of sources generated on-board at
RA(J2000) = 08:51:09.57 = 132.78987
DEC(J2000) = +71:10:47.0 = 71.17972
with a 90%-confidence error radius of about 1.10 arc sec. This position is 1.8
arc sec. from the center of the XRT error circle. The estimated magnitude is
18.55. No correction has been made for the expected extinction corresponding to
E(B-V) of 0.04.
------- notes for trigger 1014316 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 201224d14h54m50s300250usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1014316
-expid=630440002 -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/1014316/
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 630440002.19776 or about 2020:358:18:13:17 UT
Found 499 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 4% of the srclist region. Found 111 sources in
srclist catalog. Found 63 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 1 source(s) in Genie image catalog. Found 0 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 20.00 mag. Found 29 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 5% of the
Genie image region. The Genie image is INCOMPLETE with 15988 null pixels.
The closest Genie source has ra= 132.8793 dec= 71.1968 mag=15.57 sep=121.22".
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?
630440002 868 WHITE 132.78987 71.17972 18.55/19.2 1.8 srclist Yes
630440002 868 WHITE image found no candidates.
List afterglow candidates for other finding charts.
630439211 77 WHITE 132.78996 71.17990 16.76/19.2 2.5 srclist Yes
630439211 77 WHITE 132.78963 71.17982 16.16/20.8 2.2 image Yes
630439423 289 U 132.78956 71.17998 17.17/18.1 2.8 srclist Yes
630439423 289 U 132.78971 71.18000 16.96/20.1 2.9 image Yes
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: 71.17972
GRB_ERROR: 1.10
GRB_RA: 132.78987
IMAGE_START_TIME: 18:13:17
MAGNITUDE: 18.55
MAG_ERROR: 0.4
MESSAGE_TYPE: ACK
SOURCE: XRT