srclist overlap message for exposure 2 of trigger 953689
uvot_overlap.pl vrs. 2010-12-20b fem started at 200201d04h04m28s407299usUT
The observation of trigger 953689 started 2020-01-31T22:46:30.2
Examining file ./953689_g314_uvot_sky_srclist.fits
The exposure ID is 602203590
The exposure time is undefined.
The filter is U.
The uvot region is centered at (3.0915,51.1119) with a roll angle of 227.0
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 (3.0950,51.1240) with a radius of 3.000 arc min
This is 0.738 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 (3.0944,51.1168) with a radius of 0.025 arc min
This is 0.312 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 2 of trigger 953689
find_uvot_ag.pl vrs. 2017-02-17 fem started at 200201d04h04m41s208098usUT
Observation start time is 2020-01-31T22:46:30.2
Examining file ./953689_g314_uvot_catalog_srclist.fits
The exposure ID is 602203590
The exposure is 32.954 sec.
The bin size is 2 pixels
The filter is U
There are 78 detected source(s) for 953689_g314
Aspect correction adds -0.00010 degrees (-0.025 sec of time = -0.24 arc sec) to RA
Aspect correction adds -0.00038 degrees (-1.35 arcsec) to Dec
Total aspect correction is 1.37 arcsec
Star catalogs centered at 3.0920 , 51.1078 with radius 6.19 arc min.
n_usno: 1120 n_gsc: 0
*** WARNING -- bright star catalog has 6 entries brighter than 12 mag
The brightest has mag 11.00026
RA DEC Mag Color
bright star 0: 3.08962 (00:12:21.51) 51.08237 (+51:04:56.5) 11.07 USNO-V
bright star 1: 3.02182 (00:12:05.24) 51.11903 (+51:07:08.5) 11.39 USNO-V
bright star 2: 3.02787 (00:12:06.69) 51.04984 (+51:02:59.4) 11.00 USNO-V
bright star 3: 3.00961 (00:12:02.31) 51.05447 (+51:03:16.1) 11.86 USNO-V
bright star 4: 3.09650 (00:12:23.16) 51.03076 (+51:01:50.7) 11.53 USNO-V
bright star 5: 2.98369 (00:11:56.09) 51.15832 (+51:09:29.9) 11.05 USNO-V
Mean distance difference (CAT_DELTA) for 68 matched entries is 0.852" for 953689_g314
Mean and std. dev of mag. difference (MAG_DELTA) are 3.566 and 0.849 for 953689_g314
Found 11 entries without IDs and 8 entries that are acceptable afterglow candidates for 953689_g314.
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.
0 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA= 3.0950 (00:12:22.80) DEC=51.1240 (+51:07:26.4)
XRT distances are from RA= 3.0944 (00:12:22.65) DEC=51.1168 (+51:07:00.4)
-----------------
Entry 0 in the list of sources is a candidate afterglow for 953689_g314 with 5x5 stamp
ra=3.09427 (00:12:22.63) dec=51.11673 (+51:07:00.2) +/- 1.1" mag=18.77+/-0.35
dist=0.3 REFID=28
src: 0 distr. of nearby unmatched sources: 0 0 0 0 0
Found 2 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
3.0865 51.1174 17.7 -1 USNO-B1 20.59 19.11 19.76
3.0921 51.1212 16.9 -1 USNO-B1 20.57 19.59 20.03
##### This source remains a candidate #####
It has no entries within 4" or brighter than 13 mag
-----------------
Entry 26 in the list of sources is a candidate afterglow for 953689_g314 with 3x3 stamp
ra=3.13381 (00:12:32.12) dec=51.14788 (+51:08:52.4) +/- 1.1" mag=19.23+/-0.35
dist=143.1 REFID=39
*** The position of this source is inconsistent with the XRT position.
The position is 122.8 arc sec from the BAT position.
src: 26 distr. of nearby unmatched sources: 0 2 0 0 0
Found 6 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
3.1370 51.1439 16.1 -1 USNO-B1 20.41 19.55 19.93
3.1384 51.1434 19.2 -1 USNO-B1 20.00 19.20 19.55
3.1271 51.1485 15.2 -1 USNO-B1 19.59 18.11 18.77
3.1325 51.1488 4.5 -1 USNO-B1 13.79 11.73 12.65 *
3.1296 51.1513 15.6 -1 USNO-B1 99.99 18.86 99.99
3.1405 51.1470 15.4 -1 USNO-B1 18.75 17.42 18.01
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 28 in the list of sources is a candidate afterglow for 953689_g314 with 3x3 stamp
ra=3.13187 (00:12:31.65) dec=51.14935 (+51:08:57.7) +/- 1.1" mag=18.64+/-0.35
dist=144.6 REFID=32
*** The position of this source is inconsistent with the XRT position.
The position is 123.5 arc sec from the BAT position.
src: 28 distr. of nearby unmatched sources: 1 1 0 0 0
Found 5 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
3.1271 51.1485 11.1 -1 USNO-B1 19.59 18.11 18.77
3.1253 51.1494 14.9 -1 USNO-B1 19.51 17.91 18.62
3.1325 51.1488 2.4 -1 USNO-B1 13.79 11.73 12.65 *
3.1296 51.1513 8.7 -1 USNO-B1 99.99 18.86 99.99
3.1294 51.1535 15.9 -1 USNO-B1 18.77 17.85 18.26
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 29 in the list of sources is a candidate afterglow for 953689_g314 with 3x3 stamp
ra=3.13298 (00:12:31.91) dec=51.14937 (+51:08:57.7) +/- 1.1" mag=20.26+/-0.35
dist=146.2 REFID=77
*** The position of this source is inconsistent with the XRT position.
The position is 125.3 arc sec from the BAT position.
src: 29 distr. of nearby unmatched sources: 1 1 0 0 0
Found 6 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
3.1271 51.1485 13.6 -1 USNO-B1 19.59 18.11 18.77
3.1253 51.1494 17.4 -1 USNO-B1 19.51 17.91 18.62
3.1325 51.1488 2.3 -1 USNO-B1 13.79 11.73 12.65 *
3.1296 51.1513 10.3 -1 USNO-B1 99.99 18.86 99.99
3.1405 51.1470 19.0 -1 USNO-B1 18.75 17.42 18.01
3.1294 51.1535 16.8 -1 USNO-B1 18.77 17.85 18.26
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 39 in the list of sources is a candidate afterglow for 953689_g314 with 3x3 stamp
ra=3.05696 (00:12:13.67) dec=51.15781 (+51:09:28.1) +/- 1.1" mag=19.67+/-0.35
dist=170.2 REFID=65
*** The position of this source is inconsistent with the XRT position.
The position is 149.0 arc sec from the BAT position.
src: 39 distr. of nearby unmatched sources: 0 0 0 0 0
Found 4 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
3.0584 51.1526 19.0 -1 USNO-B1 19.94 19.06 19.45
3.0574 51.1572 2.3 -1 USNO-B1 15.06 14.06 14.50 *
3.0632 51.1595 15.4 -1 USNO-B1 14.73 13.34 13.96
3.0525 51.1591 11.1 -1 USNO-B1 19.66 18.04 18.76
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 44 in the list of sources is a candidate afterglow for 953689_g314 with 3x3 stamp
ra=3.00736 (00:12:01.77) dec=51.12809 (+51:07:41.1) +/- 1.1" mag=20.11+/-0.35
dist=200.8 REFID=73
*** The position of this source is inconsistent with the XRT position.
The position is 198.6 arc sec from the BAT position.
src: 44 distr. of nearby unmatched sources: 0 0 1 0 0
Found 7 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
3.0073 51.1275 2.1 -1 USNO-B1 15.89 14.87 15.32 *
3.0081 51.1307 9.7 -1 USNO-B1 17.69 17.21 17.42
3.0031 51.1264 11.4 -1 USNO-B1 16.80 15.70 16.19
3.0038 51.1287 8.4 -1 USNO-B1 20.34 19.15 19.68
3.0025 51.1265 12.4 -1 USNO-B1 17.67 16.07 16.78
3.0015 51.1267 14.1 -1 USNO-B1 16.12 15.52 15.79
3.0006 51.1279 15.4 -1 USNO-B1 17.80 16.59 17.13
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 47 in the list of sources is a candidate afterglow for 953689_g314 with 3x3 stamp
ra=3.15008 (00:12:36.02) dec=51.16129 (+51:09:40.6) +/- 1.1" mag=19.87+/-0.35
dist=203.7 REFID=46
*** The position of this source is inconsistent with the XRT position.
The position is 183.0 arc sec from the BAT position.
src: 47 distr. of nearby unmatched sources: 2 1 0 0 0
Found 3 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
3.1500 51.1574 13.9 -1 USNO-B1 16.34 15.48 15.86
3.1516 51.1610 3.6 -1 USNO-B1 12.98 12.23 12.57 *
3.1518 51.1612 4.0 -1 USNO-B1 13.08 12.30 12.65 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 48 in the list of sources is a candidate afterglow for 953689_g314 with 5x5 stamp
ra=3.15259 (00:12:36.62) dec=51.16052 (+51:09:37.9) +/- 1.1" mag=16.83+/-0.35
dist=205.1 REFID=8
*** The position of this source is inconsistent with the XRT position.
The position is 184.9 arc sec from the BAT position.
src: 48 distr. of nearby unmatched sources: 2 1 0 0 0
Found 3 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
3.1500 51.1574 12.5 -1 USNO-B1 16.34 15.48 15.86
3.1516 51.1610 2.9 -1 USNO-B1 12.98 12.23 12.57 *
3.1518 51.1612 3.0 -1 USNO-B1 13.08 12.30 12.65 *
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:
Unmatched source ra=3.09427 (00:12:22.63) dec=51.11673 (+51:07:00.2) +/- 1.1" mag=18.77+/-0.35 dist=0.3 REFID=28
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 17.02, XRT distances < 5",
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 2 of trigger 953689
------ Start for Possible Stand-alone Circular ----
In response to GRB200131 (Swift/BAT trigger 953689) at 22:41:15 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 33 seconds with the U filter starting
289 seconds after the BAT trigger. There is a candidate afterglow in the
rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 00:12:22.57 = 3.09404
DEC(J2000) = +51:06:59.6 = 51.11655
with a 90%-confidence error radius of about 0.65 arc sec. This position is 1.1
arc sec. from the center of the XRT error circle. The estimated magnitude is
16.08 with a 1-sigma error of about 0.16. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.17.
------- notes for trigger 953689 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 200201d04h04m44s422130usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=953689
-expid=602203590 -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/953689/
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 602203590.23214 or about 2020:031:22:46:25 UT
Found 1116 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 20% of the srclist region. Found 78 sources in
srclist catalog. Found 11 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
17.02 mag.
Found 10 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
19.27 mag. Found 183 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 20% of the Genie image region.
Found 1 srclist source(s) within 10.0" of the XRT position.
The brightest such source has ra= 3.0943 dec= 51.1167 mag=18.77 sep=0.29".
The closest srclist source has ra= 3.0943 dec= 51.1167 mag=18.77 sep=0.29".
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?
602203590 289 U 3.09427 51.11673 18.77/17.0 0.3 srclist Yes
602203590 289 U 3.09404 51.11655 16.08/19.3 1.1 image Yes
List afterglow candidates for other finding charts.
602203377 76 WHITE 3.09412 51.11677 16.39/19.2 0.6 srclist Yes
602203377 76 WHITE 3.09403 51.11678 15.44/20.6 0.8 image Yes
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: u
GRB_DEC: 51.11655
GRB_ERROR: 0.65
GRB_RA: 3.09404
IMAGE_START_TIME: 22:46:25
MAGNITUDE: 16.08
MAG_ERROR: 0.16
MESSAGE_TYPE: ACK
SOURCE: XRT