srclist overlap message for exposure 1 of trigger 1001514
uvot_overlap.pl vrs. 2010-12-20b fem started at 201024d11h15m32s144276usUT
The observation of trigger 1001514 started 2020-10-24T02:57:40.3
Examining file ./1001514_g520_uvot_sky_srclist.fits
The exposure ID is 625201060
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (125.9535,3.3776) with a roll angle of 102.3
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 (125.9480,3.3770) with a radius of 3.000 arc min
This is 0.334 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 (125.9523,3.3544) with a radius of 0.045 arc min
This is 1.390 arc min from the center of the uvot region
The area of the XRT error circle is 0.006 sq. arc min
The UVOT/XRT overlap is 0.006 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 1001514
find_uvot_ag.pl vrs. 2017-02-17 fem started at 201024d11h15m35s402456usUT
Observation start time is 2020-10-24T02:57:40.3
Examining file ./1001514_g520_uvot_catalog_srclist.fits
The exposure ID is 625201060
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 68 detected source(s) for 1001514_g520
Aspect correction adds 0.00170 degrees (0.407 sec of time = 6.10 arc sec) to RA
Aspect correction adds -0.00036 degrees (-1.30 arcsec) to Dec
Total aspect correction is 6.23 arcsec
Star catalogs centered at 125.9493 , 3.3840 with radius 6.08 arc min.
n_usno: 431 n_gsc: 0
*** WARNING -- bright star catalog has 4 entries brighter than 12 mag
The brightest has mag 10.64492
RA DEC Mag Color
bright star 0: 125.97849 (08:23:54.84) 3.44572 (+03:26:44.6) 11.48 USNO-V
bright star 1: 125.90712 (08:23:37.71) 3.44418 (+03:26:39.1) 11.45 USNO-V
bright star 2: 125.95411 (08:23:48.99) 3.46846 (+03:28:06.4) 10.64 USNO-V
bright star 3: 125.85124 (08:23:24.30) 3.36446 (+03:21:52.0) 11.22 USNO-V
Mean distance difference (CAT_DELTA) for 48 matched entries is 0.517" for 1001514_g520
Mean and std. dev of mag. difference (MAG_DELTA) are 1.747 and 0.252 for 1001514_g520
Found 20 entries without IDs and 2 entries that are acceptable afterglow candidates for 1001514_g520.
Acceptable entries have no ID, XRT distances < 6.75", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
17 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=125.9480 (08:23:47.52) DEC= 3.3770 (+03:22:37.2)
XRT distances are from RA=125.9523 (08:23:48.54) DEC= 3.3544 (+03:21:16.0)
*** WARNING 29 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1001514_g520 with 5x5 stamp
ra=125.95222 (08:23:48.53) dec=3.35407 (+03:21:14.7) +/- 1.1" mag=18.41+/-0.35
dist=1.3 REFID=26
src: 0 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)
##### This source remains a candidate #####
It has no entries within 4" or brighter than 13 mag
-----------------
Entry 28 in the list of sources is a candidate afterglow for 1001514_g520 with 3x3 stamp
ra=125.98832 (08:23:57.20) dec=3.40775 (+03:24:27.9) +/- 1.1" mag=20.10+/-0.35
dist=231.6 REFID=67
*** The position of this source is inconsistent with the XRT position.
The position is 182.3 arc sec from the BAT position.
src: 28 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=125.95222 (08:23:48.53) dec=3.35407 (+03:21:14.7) +/- 1.1" mag=18.41+/-0.35 dist=1.3 REFID=26
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.22, XRT distances < 6.75",
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 1001514
------ Start for Possible Stand-alone Circular ----
In response to GRB201024 (Swift/BAT trigger 1001514) at 02:48:59 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 495 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 08:23:48.55 = 125.95229
DEC(J2000) = +03:21:14.5 = 3.35403
with a 90%-confidence error radius of about 0.62 arc sec. This position is 1.5
arc sec. from the center of the XRT error circle. The estimated magnitude is
17.85 with a 1-sigma error of about 0.14. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.03.
------- notes for trigger 1001514 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 201024d11h15m41s319483usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1001514
-expid=625201060 -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/1001514/
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 625201060.2625 or about 2020:298:02:57:35 UT
Found 427 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 8% of the srclist region. Found 68 sources in
srclist catalog. Found 20 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 9 source(s) in Genie image catalog. 1 source(s) are within 10.0" of the
xrt position. Found 2 Genie image source(s) without IDs. There are 1 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.55 mag. Found 78 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 6% 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?
625201060 495 WHITE 125.95222 3.35407 18.41/19.2 1.3 srclist Yes
625201060 495 WHITE 125.95229 3.35403 17.85/20.6 1.5 image Yes
List afterglow candidates for other finding charts.
625201441 876 WHITE 125.95235 3.35407 19.03/19.2 1.6 srclist Yes
625201441 876 WHITE 125.95223 3.35403 18.38/20.5 1.2 image Yes
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 3.35403
GRB_ERROR: 0.62
GRB_RA: 125.95229
IMAGE_START_TIME: 02:57:35
MAGNITUDE: 17.85
MAG_ERROR: 0.14
MESSAGE_TYPE: ACK
SOURCE: XRT