srclist overlap message for exposure 2 of trigger 866434


uvot_overlap.pl vrs. 2010-12-20b fem started at 181010d10h29m53s811904usUT

The observation of trigger 866434 started 2018-10-10T06:01:22.1
Examining file ./866434_g330_uvot_sky_srclist.fits
The exposure ID is 560844082
The exposure time is undefined.
The filter is U.

The uvot region is centered at (52.5625,-23.0382) with a roll angle of 124.9
It is square with sides of 12.05 arc min. for an area of 145.15 sq arc min

The BAT error circle is centered at (52.5570,-23.0350) with a radius of 3.000 arc min
This is 0.361 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 (52.5703,-23.0384) with a radius of 0.030 arc min
This is 0.428 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



srclist afterglow message for exposure 2 of trigger 866434


find_uvot_ag.pl vrs. 2017-02-17 fem started at 181010d10h30m05s349472usUT

Observation start time is 2018-10-10T06:01:22.1
Examining file ./866434_g330_uvot_catalog_srclist.fits
The exposure ID is 560844082
The exposure is 249.935 sec.
The bin size is 2 pixels
The filter is U
There are 21 detected source(s) for 866434_g330
Aspect correction adds 0.00071 degrees (0.170 sec of time = 2.34 arc sec) to RA
Aspect correction adds -0.00139 degrees (-5.01 arcsec) to Dec
Total aspect correction is 5.53 arcsec
Star catalogs centered at 52.5508 , -23.0395 with radius 7.55 arc min.
n_usno: 361 n_gsc: 0
*** WARNING -- bright star catalog has 2 entries brighter than 12 mag
The brightest has mag 10.96392
                        RA                      DEC              Mag  Color
bright star  0:  52.59301 (03:30:22.32) -23.12474 (-23:07:29.1) 11.54 USNO-V
bright star  1:  52.43663 (03:29:44.79) -23.01550 (-23:00:55.8) 10.96 USNO-V
Mean distance difference (CAT_DELTA) for 20 matched entries is 0.594" for 866434_g330
Mean and std. dev of mag. difference (MAG_DELTA) are 1.502 and 0.982 for 866434_g330
Found 1 entries without IDs and 0 entries that are acceptable afterglow candidates for 866434_g330.
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=52.5570 (03:30:13.68) DEC=-23.0350 (-23:02:06.0)
XRT distances are from RA=52.5703 (03:30:16.87) DEC=-23.0384 (-23:02:18.4)
Found NO acceptable entries.
Unidentified entry closest to XRT position is no. 17:
ra= 52.48751 dec=-23.12354 +/- 1.1" mag=17.64+/-0.35 dist=411.1 REFID=12

Found 0 entries in star catalog(s) within 10" of the XRT position.

List UVOT sources within 10" of the XRT position:

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 18.12, 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 866434



------ Start for Possible Stand-alone Circular ----

In response to GRB181010 (Swift/BAT trigger 866434) at 05:55:51 UT,

---- UVOT paragraph for Joint or Stand-alone Circular ----

UVOT took a finding chart exposure of 250 seconds with the U filter starting
308 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 19.2 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 18.0 mag. No
correction has been made for the expected extinction corresponding to E(B-V) of
0.03.

------- notes for trigger 866434 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 181010d10h30m08s349920usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=866434
-expid=560844082 -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/866434/
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 560844082.1267 or about 2018:283:06:01:17 UT

Found 357 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 4% of the srclist region. Found 21 sources in
srclist catalog. Found 1 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 1 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 20.38 mag. Found 22 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 3% of the
Genie image region.

Genie image analysis:
Found 20551.9 counts in the large background region of 6315.0 pixels or a rate
of 3.254 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 19.86 mag. for a
4-arcsec aperture.
Found 705.5 counts in the XRT position region of 200.0 pixels or a rate of
3.527 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is 0.213 +/- 0.114 (1-sigma) cps or
20.06 mag and a range from 19.59 to 20.89 mag. The 3-sigma UL at the XRT
position is 0.555 cps or 19.02 mag. The closest srclist source has ra= 52.5772
dec= -23.0276 mag=16.05 sep=45.32". The closest Genie source has ra= 52.5773
dec= -23.0276 mag=15.69 sep=45.29".

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?
560844082  308 U srclist found no candidates.
560844082  308 U image found no candidates.
List afterglow candidates for other finding charts.
560843869   95 WHITE srclist found no candidates.
560843869   95 WHITE 52.57036  -23.03760  19.37/20.8	3.0  image    Yes

------- Tokens for Quick GCN -------

CATALOG_TYPE: IMAGE
FILTER: u
GRB_DEC: -23.03844
GRB_ERROR: 5
GRB_RA: 52.57029
IMAGE_START_TIME: 06:01:17
MAGNITUDE: 19.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT