image overlap message for exposure 2 of trigger 908329
uvot_overlap.pl vrs. 2010-12-20b fem started at 190613d14h22m11s101150usUT
The observation of trigger 908329 started 2019-06-13T10:52:43.5
Examining file ./908329_g340_uvot_sky_image.fits
The exposure ID is 582115963
The exposure time is 249.946 (seconds)
The filter is U.
The uvot region is centered at (305.4325,-4.6424) with a roll angle of 62.0
It is square with sides of 2.68 arc min. for an area of 7.17 sq arc min
The BAT error circle is centered at (305.4220,-4.6640) with a radius of 3.000 arc min
This is 1.439 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 7.08 sq. arc min or 0.25 of the BAT error circle
The XRT error circle is centered at (305.4320,-4.6469) with a radius of 0.028 arc min
This is 0.268 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
image afterglow message for exposure 2 of trigger 908329
find_uvot_ag.pl vrs. 2017-02-17 fem started at 190613d14h22m29s074552usUT
Observation start time is 2019-06-13T10:52:43.5
Examining file ./908329_g340_uvot_catalog_image.fits
The exposure ID is 582115963
The exposure is 249.946 sec.
The bin size is 2 pixels
The filter is U
There are 24 detected source(s) for 908329_g340
Aspect correction adds 0.00080 degrees (0.193 sec of time = 2.88 arc sec) to RA
Aspect correction adds 0.00046 degrees ( 1.65 arcsec) to Dec
Total aspect correction is 3.32 arcsec
Star catalogs centered at 305.4337 , -4.6415 with radius 2.62 arc min.
n_usno: 152 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 15 matched entries is 0.264" for 908329_g340
Mean and std. dev of mag. difference (MAG_DELTA) are 0.918 and 0.509 for 908329_g340
Found 9 entries without IDs and 9 entries that are acceptable afterglow candidates for 908329_g340.
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=305.4220 (20:21:41.28) DEC=-4.6640 (-04:39:50.4)
XRT distances are from RA=305.4320 (20:21:43.69) DEC=-4.6469 (-04:38:48.7)
*** WARNING 37 per cent of entries have no IDs.
-----------------
Entry 1 in the list of sources is a candidate afterglow for 908329_g340 with genie
ra=305.43192 (20:21:43.66) dec=-4.64668 (-04:38:48.1) +/- 0.7" mag=18.84+/-0.17
dist=0.8 REFID=17 major=1.0 minor=0.9 flag=3 (neighbor+blended)
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
305.4300 -4.6463 7.0 -1 USNO-B1 17.37 16.18 16.71
uvot_check_outside found 13 of 13 good pixels
##### This source remains a candidate #####
It has no entries within 3.5" or brighter than 12 mag
-----------------
Entry 3 in the list of sources is a candidate afterglow for 908329_g340 with genie
ra=305.42029 (20:21:40.87) dec=-4.64686 (-04:38:48.7) +/- 1.3" mag=20.79+/-0.42
dist=42.2 REFID=18 major=1.5 minor=1.2 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 62.0 arc sec from the BAT position.
Found 2 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
305.4227 -4.6500 14.3 -1 USNO-B1 20.72 19.80 20.21
305.4190 -4.6512 16.2 -1 USNO-B1 20.34 19.94 20.12
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 1.5
-----------------
Entry 4 in the list of sources is a candidate afterglow for 908329_g340 with genie
ra=305.42004 (20:21:40.81) dec=-4.64076 (-04:38:26.7) +/- 0.8" mag=19.55+/-0.21
dist=48.3 REFID=11 major=3.6 minor=1.4 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 84.0 arc sec from the BAT position.
Found 2 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
305.4250 -4.6403 18.1 -1 USNO-B1 20.48 20.02 20.22
305.4160 -4.6431 16.6 -1 USNO-B1 20.30 19.16 19.67
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 3.6
-----------------
Entry 5 in the list of sources is a candidate afterglow for 908329_g340 with genie
ra=305.41954 (20:21:40.69) dec=-4.65029 (-04:39:01.0) +/- 0.8" mag=19.66+/-0.22
dist=46.5 REFID=19 major=4.1 minor=2.2 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 50.1 arc sec from the BAT position.
Found 2 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
305.4227 -4.6500 11.5 -1 USNO-B1 20.72 19.80 20.21
305.4190 -4.6512 3.7 -1 USNO-B1 20.34 19.94 20.12
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 4.1
-----------------
Entry 7 in the list of sources is a candidate afterglow for 908329_g340 with genie
ra=305.41985 (20:21:40.76) dec=-4.65163 (-04:39:05.9) +/- 0.9" mag=19.95+/-0.25
dist=47.0 REFID=22 major=2.7 minor=2.1 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 45.2 arc sec from the BAT position.
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
305.4227 -4.6500 11.9 -1 USNO-B1 20.72 19.80 20.21
305.4242 -4.6549 19.5 -1 USNO-B1 20.71 19.06 19.80
305.4190 -4.6512 3.3 -1 USNO-B1 20.34 19.94 20.12 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 12 mag
-----------------
Entry 8 in the list of sources is a candidate afterglow for 908329_g340 with genie
ra=305.41949 (20:21:40.68) dec=-4.65646 (-04:39:23.3) +/- 0.7" mag=19.26+/-0.19
dist=56.8 REFID=24 major=2.8 minor=2.1 flag=1 (neighbor)
*** The position of this source is inconsistent with the XRT position.
The position is 28.6 arc sec from the BAT position.
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
305.4242 -4.6549 17.7 -1 USNO-B1 20.71 19.06 19.80
305.4190 -4.6512 19.0 -1 USNO-B1 20.34 19.94 20.12
305.4185 -4.6588 9.2 -1 USNO-B1 16.77 15.64 16.14
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 2.8
-----------------
Entry 17 in the list of sources is a candidate afterglow for 908329_g340 with genie
ra=305.42035 (20:21:40.88) dec=-4.62904 (-04:37:44.5) +/- 0.8" mag=19.67+/-0.22
dist=76.7 REFID=4 major=3.6 minor=2.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 126.0 arc sec from the BAT position.
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
305.4239 -4.6299 13.2 -1 USNO-B1 15.70 14.35 14.95
305.4245 -4.6273 16.2 -1 USNO-B1 17.93 17.40 17.63
305.4213 -4.6282 4.6 -1 USNO-B1 20.59 20.23 20.39
305.4172 -4.6325 16.9 -1 USNO-B1 20.06 18.79 19.35
305.4181 -4.6284 8.5 -1 USNO-B1 20.44 20.11 20.26
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 3.6
-----------------
Entry 21 in the list of sources is a candidate afterglow for 908329_g340 with genie
ra=305.42031 (20:21:40.87) dec=-4.62322 (-04:37:23.6) +/- 0.7" mag=18.84+/-0.17
dist=95.0 REFID=3 major=3.2 minor=1.7 flag=16 (aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 146.9 arc sec from the BAT position.
This source is near the edge of image (0.871)
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
305.4213 -4.6282 18.4 -1 USNO-B1 20.59 20.23 20.39
305.4161 -4.6246 15.9 -1 USNO-B1 18.52 17.04 17.69
305.4235 -4.6191 18.6 -1 USNO-B1 17.19 16.16 16.62
305.4174 -4.6211 12.9 -1 USNO-B1 20.52 18.95 19.64
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 3.2
-----------------
Entry 22 in the list of sources is a candidate afterglow for 908329_g340 with genie
ra=305.45381 (20:21:48.92) dec=-4.65192 (-04:39:06.9) +/- 0.7" mag=18.74+/-0.17
dist=80.2 REFID=20 major=0.9 minor=0.3 flag=16 (aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 122.2 arc sec from the BAT position.
This source is near the edge of image (0.959)
Found 2 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
305.4521 -4.6522 6.3 -1 USNO-B1 20.79 19.50 20.08
305.4547 -4.6519 3.2 -1 USNO-B1 15.82 14.79 15.25 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 5.25" or brighter than 12 mag
Found 1 entries in star catalog(s) within 10" of the XRT position.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
305.4300 -4.6463 7.6 -1 USNO-B1 17.37 16.18 16.71
The closest star is 7.59" away.
List UVOT sources within 10" of the XRT position:
Matched source ra=305.43007 (20:21:43.22) dec=-4.64628 (-04:38:46.6) +/- 0.6" mag=17.77+/-0.15 dist=7.4 REFID=16 flag=2
Unmatched source ra=305.43192 (20:21:43.66) dec=-4.64668 (-04:38:48.1) +/- 0.7" mag=18.84+/-0.17 dist=0.8 REFID=17 flag=3
There are 15494.439 counts in the bkg source region of 5743.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 2.698 counts/pixel (5-sig UL in 4" is 19.93 mag) for 908329_g340
There are 263.80850 counts in the src source region of 51.000000 pixels.
Rate in src region with 4 arcsec radius is 5.173 counts/pixel for 908329_g340
There are 3238.7402 counts in the cand_src_bkg source region of 1204.0000 pixels.
Rate in cand_src_bkg region from 15 to 25 arcsec is 2.690 counts/pixel (5-sig UL in 4" is 19.93 mag) for 908329_g340
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 20.48, XRT distances < 5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 1 good candidate(s) found.
Region file: 908329_582115963_190613d14h22m29s074552usUT_bkg.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(305.4325,-4.6424,45")
fk5;-circle(305.430071202622,-4.64628244829605,6")
fk5;-circle(305.431919820887,-4.64668327035716,6")
fk5;-circle(305.425705197085,-4.64293896635221,6")
fk5;-circle(305.420289912568,-4.64686012441244,6")
fk5;-circle(305.420037998972,-4.64075801009097,6")
fk5;-circle(305.425424527973,-4.63621081714,6")
fk5;-circle(305.445037977789,-4.6416511025621,6")
fk5;-circle(305.446208785949,-4.64548631188896,6")
fk5;-circle(305.432452263415,-4.62834502752568,6")
fk5;-circle(305.434937900011,-4.62847628657933,6")
Region file: 908329_582115963_190613d14h22m29s074552usUT_cand_src.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(305.431919820887,-4.64668327035716,4")
Region file: 908329_582115963_190613d14h22m29s074552usUT_cand_bkg.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(305.431919820887,-4.64668327035716,25")
fk5;-circle(305.431919820887,-4.64668327035716,15")
fk5;-circle(305.425705197085,-4.64293896635221,6")
image paragraph message for exposure 2 of trigger 908329
------ Start for Possible Stand-alone Circular ----
In response to GRB190613 (Swift/BAT trigger 908329) at 10:47:02 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 250 seconds with the U filter starting
318 seconds after the BAT trigger. There is a candidate afterglow in the
rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 20:21:43.66 = 305.43192
DEC(J2000) = -04:38:48.0 = -4.64668
with a 90%-confidence error radius of about 0.68 arc sec. This position is 0.8
arc sec. from the center of the XRT error circle. The estimated magnitude is
18.84 with a 1-sigma error of about 0.17. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.07.
------- notes for trigger 908329 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 190613d14h22m34s191611usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=908329
-expid=582115963 -meonly -msg_image
Results from standard processing of UVOT TDRSS data for this trigger should be
available at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/908329/
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 582115963.47992 or about 2019:164:10:52:38 UT
Found 858 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 15% of the srclist region. Found 95 sources in
srclist catalog. Found 19 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
18.12 mag.
Found 24 source(s) in Genie image catalog. 2 source(s) are within 10.0" of the
xrt position. Found 9 Genie image source(s) without IDs. There are 1 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.48 mag. Found 148 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 14% of the Genie image region.
Found 2 srclist source(s) within 10.0" of the XRT position.
The brightest such source has ra= 305.4319 dec= -4.6465 mag=19.43 sep=1.49".
The closest srclist source has ra= 305.4319 dec= -4.6465 mag=19.43 sep=1.49".
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?
582115963 317 U 305.43190 -4.64647 19.43/18.1 1.5 srclist Yes
582115963 317 U 305.43192 -4.64668 18.84/20.5 0.8 image Yes
List afterglow candidates for other finding charts.
582115751 105 WHITE 305.43192 -4.64651 18.54/19.2 1.3 srclist Yes
582115751 105 WHITE 305.43189 -4.64665 17.76/20.7 0.9 image Yes
582116519 873 WHITE srclist found no candidates.
582116519 873 WHITE 305.43200 -4.64661 20.15/20.7 2.8 image Yes
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: u
GRB_DEC: -4.64668
GRB_ERROR: 0.68
GRB_RA: 305.43192
IMAGE_START_TIME: 10:52:38
MAGNITUDE: 18.84
MAG_ERROR: 0.17
MESSAGE_TYPE: ACK
SOURCE: XRT