image overlap message for exposure 1 of trigger 963260
uvot_overlap.pl vrs. 2010-12-20b fem started at 200324d19h16m31s942645usUT
The observation of trigger 963260 started 2020-03-24T16:42:47.1
Examining file ./963260_g219_uvot_sky_image.fits
The exposure ID is 606760967
The exposure time is 149.868 (seconds)
The filter is WHITE.
The uvot region is centered at (222.6750,35.9429) with a roll angle of 52.2
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 (222.6850,35.9680) with a radius of 3.000 arc min
This is 1.584 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 6.95 sq. arc min or 0.25 of the BAT error circle
The XRT error circle is centered at (222.6738,35.9417) with a radius of 0.028 arc min
This is 0.091 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 1 of trigger 963260
find_uvot_ag.pl vrs. 2017-02-17 fem started at 200324d19h16m37s544046usUT
Observation start time is 2020-03-24T16:42:47.1
Examining file ./963260_g219_uvot_catalog_image.fits
The exposure ID is 606760967
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 5 detected source(s) for 963260_g219
Aspect correction adds 0.00188 degrees (0.450 sec of time = 5.46 arc sec) to RA
Aspect correction adds 0.00119 degrees ( 4.29 arcsec) to Dec
Total aspect correction is 6.95 arcsec
Star catalogs centered at 222.6684 , 35.9411 with radius 2.27 arc min.
n_usno: 37 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 5 matched entries is 0.413" for 963260_g219
Mean and std. dev of mag. difference (MAG_DELTA) are 0.459 and 0.505 for 963260_g219
Found 0 entries without IDs and 0 entries that are acceptable afterglow candidates for 963260_g219.
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=222.6850 (14:50:44.40) DEC=35.9680 (+35:58:04.8)
XRT distances are from RA=222.6738 (14:50:41.70) DEC=35.9417 (+35:56:30.2)
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
There are 37292.938 counts in the bkg source region of 6114.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 6.100 counts/pixel (5-sig UL in 4" is 20.37 mag) for 963260_g219
There are 1172.2313 counts in the xrt source region of 199.00000 pixels.
Rate in xrt region with 8 arcsec radius is 5.891 counts/pixel for 963260_g219
There are 7246.1665 counts in the xrt_bkg source region of 1208.0000 pixels.
Rate in xrt_bkg region from 15 to 25 arcsec is 5.998 counts/pixel (5-sig UL in 4" is 20.38 mag) for 963260_g219
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 20.92, XRT distances < 5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 963260_606760967_200324d19h16m37s544046usUT_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(222.6750,35.9429,45")
fk5;-circle(222.678124524068,35.9417274678368,6")
fk5;-circle(222.680118374574,35.9303431743591,6")
fk5;-circle(222.667643011657,35.9537060902152,6")
Region file: 963260_606760967_200324d19h16m37s544046usUT_xrt.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(222.67375,35.94172,8")
Region file: 963260_606760967_200324d19h16m37s544046usUT_xrt_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(222.67375,35.94172,25")
fk5;-circle(222.67375,35.94172,15")
fk5;-circle(222.678124524068,35.9417274678368,6")
image paragraph message for exposure 1 of trigger 963260
------ Start for Possible Stand-alone Circular ----
In response to GRB200324 (Swift/BAT trigger 963260) at 16:39:07 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 194 seconds after the BAT trigger. No credible afterglow candidate has
been found in the initial data products. The 2.7'x2.7' sub-image covers 100% of
the XRT error circle. The typical 3-sigma upper limit has been about 19.6 mag.
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
0.01.
------- notes for trigger 963260 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 200324d19h16m41s762895usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=963260
-expid=606760967 -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/963260/
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 606760967.11902 or about 2020:084:16:42:42 UT
Found 163 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 4% of the srclist region. Found 111 sources in
srclist catalog. Found 87 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 5 source(s) in Genie image catalog. Found 0 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 20.92 mag. Found 33 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 4% of the
Genie image region.
Genie image analysis:
Found 37292.9 counts in the large background region of 6114.0 pixels or a rate
of 6.100 counts/pixel in a radius of 45.0 arcsec. Based on this background, the
typical 5-sigma UL at a random point in the Genie image is 20.37 mag. for a
4-arcsec aperture.
Found 1172.2 counts in the XRT position region of 199.0 pixels or a rate of
5.890 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is -0.143 +/- 0.247 (1-sigma) cps. The
3-sigma UL at the XRT position is 0.740 cps or 20.11 mag. The closest srclist
source has ra= 222.6803 dec= 35.9304 mag=16.98 sep=44.89". The closest Genie
source has ra= 222.6781 dec= 35.9417 mag=21.03 sep=12.75".
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?
606760967 194 WHITE srclist found no candidates.
606760967 194 WHITE image found no candidates.
List afterglow candidates for other finding charts.
606761125 352 ? srclist data are not available.
606761125 352 U image found no candidates.
606761632 859 WHITE srclist found no candidates.
606761632 859 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 35.94172
GRB_ERROR: 5
GRB_RA: 222.67375
IMAGE_START_TIME: 16:42:42
MAGNITUDE: 20.1
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT