image overlap message for exposure 3 of trigger 814129
uvot_overlap.pl vrs. 2010-12-20b fem started at 180314d03h19m59s318217usUT
The observation of trigger 814129 started 2018-03-14T00:58:32.9
Examining file ./814129_g900_uvot_sky_image.fits
The exposure ID is 542681912
The exposure time is 149.967 (seconds)
The filter is WHITE.
The uvot region is centered at (99.2623,-24.4988) with a roll angle of 261.1
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 (99.2760,-24.4910) with a radius of 3.000 arc min
This is 0.884 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 7.17 sq. arc min or 0.25 of the BAT error circle
The XRT error circle is centered at (99.2652,-24.4963) with a radius of 0.030 arc min
This is 0.221 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 3 of trigger 814129
find_uvot_ag.pl vrs. 2017-02-17 fem started at 180314d03h20m16s238119usUT
Observation start time is 2018-03-14T00:58:32.9
Examining file ./814129_g900_uvot_catalog_image.fits
The exposure ID is 542681912
The exposure is 149.967 sec.
The bin size is 2 pixels
The filter is WHITE
There are 23 detected source(s) for 814129_g900
Aspect correction adds 0.00009 degrees (0.021 sec of time = 0.29 arc sec) to RA
Aspect correction adds -0.00032 degrees (-1.16 arcsec) to Dec
Total aspect correction is 1.20 arcsec
Star catalogs centered at 99.2603 , -24.4992 with radius 2.73 arc min.
n_usno: 170 n_gsc: 193
*** WARNING -- bright star catalog has 3 entries brighter than 12 mag
The brightest has mag 11.0272
RA DEC Mag Color
bright star 0: 99.26038 (06:37:02.49) -24.51439 (-24:30:51.8) 11.36 USNO-V
bright star 1: 99.25945 (06:37:02.27) -24.48115 (-24:28:52.1) 11.03 USNO-V
bright star 2: 99.24068 (06:36:57.76) -24.51356 (-24:30:48.8) 11.46 GSC-F
Mean distance difference (CAT_DELTA) for 18 matched entries is 0.659" for 814129_g900
Mean and std. dev of mag. difference (MAG_DELTA) are 0.615 and 1.031 for 814129_g900
Found 6 entries without IDs and 2 entries that are acceptable afterglow candidates for 814129_g900.
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.
4 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=99.2760 (06:37:06.24) DEC=-24.4910 (-24:29:27.6)
XRT distances are from RA=99.2652 (06:37:03.65) DEC=-24.4963 (-24:29:46.6)
*** WARNING 26 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 814129_g900 with genie
ra=99.26531 (06:37:03.68) dec=-24.49611 (-24:29:46.0) +/- 0.6" mag=18.28+/-0.15
dist=0.7 REFID=13 major=0.9 minor=0.8 flag=0
Found 5 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
99.2637 -24.4939 9.7 -1 USNO-B1 19.58 18.29 18.86
99.2633 -24.4922 15.7 -1 USNO-B1 20.03 18.76 19.32
99.2636 -24.4939 9.8 -1 GSC2.3 18.08 19.10 99.99
99.2632 -24.4921 15.9 -1 GSC2.3 18.54 20.39 99.99
99.2688 -24.4986 14.5 -1 GSC2.3 20.48 99.99 99.99
uvot_check_outside found 11 of 11 good pixels
##### This source remains a candidate #####
It has no entries within 3.5" or brighter than 12 mag
-----------------
Entry 19 in the list of sources is a candidate afterglow for 814129_g900 with genie
ra=99.26219 (06:37:02.92) dec=-24.47476 (-24:28:29.1) +/- 0.6" mag=17.44+/-0.14
dist=78.1 REFID=18 major=6.5 minor=1.6 flag=18 (blended+aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 73.9 arc sec from the BAT position.
This source is near the edge of image (1.010)
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
99.2604 -24.4724 10.4 -1 USNO-B1 17.61 16.12 16.78
99.2604 -24.4724 10.4 -1 GSC2.3 15.86 16.92 99.99
99.2651 -24.4725 12.6 -1 GSC2.3 20.28 99.99 99.99
99.2670 -24.4726 17.6 -1 GSC2.3 20.04 22.29 99.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 6.5
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=99.26531 (06:37:03.68) dec=-24.49611 (-24:29:46.0) +/- 0.6" mag=18.28+/-0.15 dist=0.7 REFID=13 flag=0
Matched source ra=99.26368 (06:37:03.28) dec=-24.49388 (-24:29:38.0) +/- 0.7" mag=19.54+/-0.17 dist=10.0 REFID=12 flag=0
There are 66718.492 counts in the bkg source region of 5639.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 11.832 counts/pixel (5-sig UL in 4" is 20.01 mag) for 814129_g900
There are 1237.1675 counts in the src source region of 50.000000 pixels.
Rate in src region with 4 arcsec radius is 24.743 counts/pixel for 814129_g900
There are 13422.823 counts in the cand_src_bkg source region of 1231.0000 pixels.
Rate in cand_src_bkg region from 15 to 25 arcsec is 10.904 counts/pixel (5-sig UL in 4" is 20.05 mag) for 814129_g900
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 20.56, 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: 814129_542681912_180314d03h20m16s238119usUT_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(99.2623,-24.4988,45")
fk5;-circle(99.2653128793703,-24.4961060640903,6")
fk5;-circle(99.263675037272,-24.4938837901594,6")
fk5;-circle(99.2727103904285,-24.500102373195,6")
fk5;-circle(99.2736813673426,-24.4917907794151,6")
fk5;-circle(99.2701108609938,-24.5060427089877,6")
fk5;-circle(99.2512698487562,-24.4930190786888,6")
fk5;-circle(99.2494165268451,-24.4988833694778,6")
fk5;-circle(99.2654316096409,-24.5126206955043,6")
Region file: 814129_542681912_180314d03h20m16s238119usUT_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(99.2653128793703,-24.4961060640903,4")
Region file: 814129_542681912_180314d03h20m16s238119usUT_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(99.2653128793703,-24.4961060640903,25")
fk5;-circle(99.2653128793703,-24.4961060640903,15")
fk5;-circle(99.263675037272,-24.4938837901594,6")
fk5;-circle(99.2727103904285,-24.500102373195,6")
image paragraph message for exposure 3 of trigger 814129
------ Start for Possible Stand-alone Circular ----
In response to GRB180314 (Swift/BAT trigger 814129) at 00:43:31 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 880 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 06:37:03.67 = 99.26531
DEC(J2000) = -24:29:46.0 = -24.49611
with a 90%-confidence error radius of about 0.62 arc sec. This position is 0.7
arc sec. from the center of the XRT error circle. The estimated magnitude is
18.28 with a 1-sigma error of about 0.15. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.08.
------- notes for trigger 814129 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 180314d03h20m18s928601usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=814129
-expid=542681912 -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/814129/
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 542681912.90654 or about 2018:073:00:58:27 UT
Found 1969 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 17% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 3 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 19.22 mag.
Found 23 source(s) in Genie image catalog. 2 source(s) are within 10.0" of the
xrt position. Found 6 Genie image source(s) without IDs. There are 1 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.56 mag. Found 187 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 17% of the Genie image region. The
closest srclist source has ra= 99.2699 dec= -24.5060 mag=16.04 sep=38.45".
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?
542681912 880 WHITE srclist found no candidates.
542681912 880 WHITE 99.26531 -24.49611 18.28/20.6 0.7 image Yes
List afterglow candidates for other finding charts.
542681198 166 WHITE 99.26555 -24.49610 16.87/19.2 1.3 srclist Yes
542681198 166 WHITE 99.26532 -24.49612 16.27/20.1 0.7 image Yes
542681357 325 U 99.26548 -24.49603 17.50/18.1 1.3 srclist Yes
542681357 325 U 99.26535 -24.49613 16.97/19.8 0.7 image Yes
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: -24.49611
GRB_ERROR: 0.62
GRB_RA: 99.26531
IMAGE_START_TIME: 00:58:27
MAGNITUDE: 18.28
MAG_ERROR: 0.15
MESSAGE_TYPE: ACK
SOURCE: XRT