srclist overlap message for exposure 1 of trigger 965784
uvot_overlap.pl vrs. 2010-12-20b fem started at 200411d09h36m04s675297usUT
The observation of trigger 965784 started 2020-04-11T04:30:25.1
Examining file ./965784_g82_uvot_sky_srclist.fits
The exposure ID is 608272225
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (47.6510,-52.3091) with a roll angle of 329.7
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 (47.6590,-52.3140) with a radius of 3.000 arc min
This is 0.414 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 (47.6642,-52.3176) with a radius of 0.025 arc min
This is 0.703 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 1 of trigger 965784
find_uvot_ag.pl vrs. 2017-02-17 fem started at 200411d09h36m08s709920usUT
Observation start time is 2020-04-11T04:30:25.1
Examining file ./965784_g82_uvot_catalog_srclist.fits
The exposure ID is 608272225
The exposure is 150.000 sec.
The bin size is 2 pixels
The filter is WHITE
There are 35 detected source(s) for 965784_g82
Aspect correction adds 0.00121 degrees (0.291 sec of time = 2.67 arc sec) to RA
Aspect correction adds 0.00124 degrees ( 4.46 arcsec) to Dec
Total aspect correction is 5.20 arcsec
Star catalogs centered at 47.6675 , -52.3100 with radius 6.00 arc min.
n_usno: 351 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 14 matched entries is 0.889" for 965784_g82
Mean and std. dev of mag. difference (MAG_DELTA) are 2.299 and 1.252 for 965784_g82
Found 21 entries without IDs and 6 entries that are acceptable afterglow candidates for 965784_g82.
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.
Magnitude criteria will be applied later.
BAT distances are from RA=47.6590 (03:10:38.16) DEC=-52.3140 (-52:18:50.4)
XRT distances are from RA=47.6642 (03:10:39.40) DEC=-52.3176 (-52:19:03.5)
*** WARNING 60 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 965784_g82 with 5x5 stamp
ra=47.67677 (03:10:42.42) dec=-52.30488 (-52:18:17.6) +/- 1.1" mag=18.16+/-0.35
dist=53.6 REFID=16
*** The position of this source is inconsistent with the XRT position.
The position is 51.1 arc sec from the BAT position.
src: 0 distr. of nearby unmatched sources: 0 1 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
47.6709 -52.3039 13.4 -1 USNO-B1 15.75 15.38 15.55
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 1 in the list of sources is a candidate afterglow for 965784_g82 with 5x5 stamp
ra=47.67270 (03:10:41.45) dec=-52.30425 (-52:18:15.3) +/- 1.1" mag=19.80+/-0.35
dist=51.7 REFID=31
*** The position of this source is inconsistent with the XRT position.
The position is 46.3 arc sec from the BAT position.
src: 1 distr. of nearby unmatched sources: 0 1 0 0 0
Found 1 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
47.6709 -52.3039 4.2 -1 USNO-B1 15.75 15.38 15.55
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 4 in the list of sources is a candidate afterglow for 965784_g82 with 5x5 stamp
ra=47.62852 (03:10:30.85) dec=-52.32304 (-52:19:23.0) +/- 1.1" mag=17.33+/-0.35
dist=80.8 REFID=12
*** The position of this source is inconsistent with the XRT position.
The position is 74.5 arc sec from the BAT position.
src: 4 distr. of nearby unmatched sources: 0 0 1 1 2
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
47.6287 -52.3218 4.7 -1 USNO-B1 20.61 18.44 19.40
47.6265 -52.3217 6.7 -1 USNO-B1 21.83 18.03 19.72
47.6222 -52.3217 14.7 -1 USNO-B1 12.93 12.70 12.80 *
47.6224 -52.3243 14.3 -1 USNO-B1 99.99 18.98 99.99
47.6220 -52.3243 15.0 -1 USNO-B1 99.99 17.99 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
-----------------
Entry 5 in the list of sources is a candidate afterglow for 965784_g82 with 5x5 stamp
ra=47.62373 (03:10:29.69) dec=-52.32242 (-52:19:20.7) +/- 1.1" mag=18.36+/-0.35
dist=90.6 REFID=19
*** The position of this source is inconsistent with the XRT position.
The position is 83.3 arc sec from the BAT position.
src: 5 distr. of nearby unmatched sources: 0 1 2 1 0
Found 8 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
47.6287 -52.3218 11.1 -1 USNO-B1 20.61 18.44 19.40
47.6265 -52.3217 6.6 -1 USNO-B1 21.83 18.03 19.72
47.6221 -52.3188 13.4 -1 USNO-B1 99.99 19.27 99.99
47.6222 -52.3217 4.1 -1 USNO-B1 12.93 12.70 12.80 *
47.6224 -52.3243 7.5 -1 USNO-B1 99.99 18.98 99.99
47.6220 -52.3243 7.9 -1 USNO-B1 99.99 17.99 99.99
47.6175 -52.3210 14.7 -1 USNO-B1 99.99 17.45 99.99
47.6164 -52.3204 17.8 -1 USNO-B1 17.62 15.68 16.54
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 6 in the list of sources is a candidate afterglow for 965784_g82 with 5x5 stamp
ra=47.62078 (03:10:28.99) dec=-52.31842 (-52:19:06.3) +/- 1.1" mag=20.17+/-0.35
dist=95.5 REFID=35
*** The position of this source is inconsistent with the XRT position.
The position is 85.6 arc sec from the BAT position.
src: 6 distr. of nearby unmatched sources: 0 0 1 1 2
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
47.6265 -52.3217 17.2 -1 USNO-B1 21.83 18.03 19.72
47.6221 -52.3188 3.3 -1 USNO-B1 99.99 19.27 99.99 *
47.6222 -52.3217 12.3 -1 USNO-B1 12.93 12.70 12.80 *
47.6175 -52.3210 11.8 -1 USNO-B1 99.99 17.45 99.99
47.6164 -52.3204 12.0 -1 USNO-B1 17.62 15.68 16.54
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 8 in the list of sources is a candidate afterglow for 965784_g82 with 5x5 stamp
ra=47.61869 (03:10:28.49) dec=-52.32140 (-52:19:17.1) +/- 1.1" mag=19.42+/-0.35
dist=101.0 REFID=32
*** The position of this source is inconsistent with the XRT position.
The position is 92.6 arc sec from the BAT position.
src: 8 distr. of nearby unmatched sources: 0 0 3 0 1
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
47.6265 -52.3217 17.2 -1 USNO-B1 21.83 18.03 19.72
47.6221 -52.3188 11.9 -1 USNO-B1 99.99 19.27 99.99
47.6222 -52.3217 7.8 -1 USNO-B1 12.93 12.70 12.80 *
47.6224 -52.3243 13.3 -1 USNO-B1 99.99 18.98 99.99
47.6220 -52.3243 12.9 -1 USNO-B1 99.99 17.99 99.99
47.6175 -52.3210 3.1 -1 USNO-B1 99.99 17.45 99.99 *
47.6164 -52.3204 6.4 -1 USNO-B1 17.62 15.68 16.54
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 1 candidate(s) outside XRT error circle with mag < 18.66
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: 0 good candidate(s) found.
srclist paragraph message for exposure 1 of trigger 965784
------ Start for Possible Stand-alone Circular ----
In response to GRB200411 (Swift/BAT trigger 965784) at 04:29:02 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of nominal 150.000 seconds with the White
filter starting 58 seconds after the BAT trigger. No credible afterglow
candidate has been found in the initial data products. Data from the 2.7'x2.7'
sub-image are not available at this time. 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 0.02.
------- notes for trigger 965784 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 200411d09h36m13s992340usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=965784
-expid=608272225 -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/965784/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
*** Warning -- no exposure found, using srclist assumed value.
XRT position found for srclist. BAT position found.
UVOT exposure began at MET 608272225.07962 or about 2020:102:04:30:20 UT
Found 347 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 6% of the srclist region. Found 35 sources in
srclist catalog. Found 21 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
19.22 mag.
The closest srclist source has ra= 47.6709 dec= -52.3039 mag=17.67 sep=51.68".
This paragraph is only useful if the XRT position is grossly wrong. There are 1
candidate(s) in the srclist data with mag < 18.66 inside the BAT error region,
but outside the XRT error region. The brightest such source is at RA=47.67677
(03:10:42.42), DEC=-52.30488 (-52:18:17.6) (J2000). It has a mag of 18.16. It
is 51.1" from the BAT position.
****THIS SOURCE IS OUTSIDE XRT ERROR CIRCLE--USE WITH CAUTION***
UVOT took a finding chart exposure of nominal 150.000 seconds with the White
filter starting 58 seconds after the BAT trigger. There is a candidate
afterglow in the list of sources generated on-board at
RA(J2000) = 03:10:42.42 = 47.67677
DEC(J2000) = -52:18:17.6 = -52.30488
with a 90%-confidence error radius of about 1.10 arc sec. The estimated
magnitude is 18.16 with a 1-sigma error of about 0.35. No correction has been
made for the expected extinction corresponding to E(B-V) of 0.02.
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?
608272225 57 WHITE srclist found no candidates.
608272225 57 ? image data are not available.
List afterglow candidates for other finding charts.
608272437 269 ? srclist data are not available.
608272437 269 U image found no candidates.
608273039 871 WHITE srclist found no candidates.
608273039 871 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: -52.31764
GRB_ERROR: 5
GRB_RA: 47.66417
IMAGE_START_TIME: 04:30:20
MAGNITUDE: 18.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT