image overlap message for exposure 1 of trigger 931242
uvot_overlap.pl vrs. 2010-12-20b fem started at 191024d16h26m26s165645usUT
The observation of trigger 931242 started 2019-10-24T04:57:09.1
Examining file ./931242_g856_uvot_sky_image.fits
The exposure ID is 593585829
The exposure time is 149.857 (seconds)
The filter is WHITE.
The uvot region is centered at (10.1555,-67.1475) with a roll angle of 198.1
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 (10.1470,-67.1390) with a radius of 3.000 arc min
This is 0.548 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 (10.1135,-67.1432) with a radius of 0.043 arc min
This is 1.013 arc min from the center of the uvot region
The area of the XRT error circle is 0.006 sq. arc min
The UVOT/XRT overlap is 0.006 sq. arc min or 1.00 of the XRT error circle
image afterglow message for exposure 1 of trigger 931242
find_uvot_ag.pl vrs. 2017-02-17 fem started at 191024d16h26m42s856210usUT
Observation start time is 2019-10-24T04:57:09.1
Examining file ./931242_g856_uvot_catalog_image.fits
The exposure ID is 593585829
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 6 detected source(s) for 931242_g856
Aspect correction adds 0.00138 degrees (0.332 sec of time = 1.94 arc sec) to RA
Aspect correction adds -0.00237 degrees (-8.54 arcsec) to Dec
Total aspect correction is 8.75 arcsec
Star catalogs centered at 10.1434 , -67.1489 with radius 2.45 arc min.
n_usno: 71 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 6 matched entries is 0.348" for 931242_g856
Mean and std. dev of mag. difference (MAG_DELTA) are 1.059 and 0.426 for 931242_g856
Found 0 entries without IDs and 0 entries that are acceptable afterglow candidates for 931242_g856.
Acceptable entries have no ID, XRT distances < 6.5", 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=10.1470 (00:40:35.28) DEC=-67.1390 (-67:08:20.4)
XRT distances are from RA=10.1135 (00:40:27.24) DEC=-67.1432 (-67:08:35.6)
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
10.1082 -67.1449 9.5 -1 USNO-B1 99.99 20.45 99.99
The closest star is 9.50" away.
List UVOT sources within 10" of the XRT position:
There are 36206.875 counts in the bkg source region of 5916.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 6.120 counts/pixel (5-sig UL in 4" is 20.37 mag) for 931242_g856
There are 1129.1819 counts in the xrt source region of 196.00000 pixels.
Rate in xrt region with 8 arcsec radius is 5.761 counts/pixel for 931242_g856
XRT source is too far (60.707914122895") from center -- do not compute local background.
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 < 6.5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 931242_593585829_191024d16h26m42s856210usUT_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(10.1555,-67.1475,45")
fk5;-circle(10.1377626899734,-67.1370240107479,6")
fk5;-circle(10.1707672328851,-67.1458566005278,6")
fk5;-circle(10.1553816100703,-67.1530140236366,6")
fk5;-circle(10.1368549745706,-67.1536208041256,6")
Region file: 931242_593585829_191024d16h26m42s856210usUT_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(10.11350,-67.14322,8")
image paragraph message for exposure 1 of trigger 931242
------ Start for Possible Stand-alone Circular ----
In response to GRB191024 (Swift/BAT trigger 931242) at 04:42:52 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 832 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
0.02.
------- notes for trigger 931242 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 191024d16h26m46s800645usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=931242
-expid=593585829 -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/931242/
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 593585829.10942 or about 2019:297:04:57:04 UT
Found 444 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 9% of the srclist region. Found 44 sources in
srclist catalog. Found 7 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 6 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 67 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 7% of the
Genie image region.
Genie image analysis:
Found 36206.9 counts in the large background region of 5916.0 pixels or a rate
of 6.120 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 1129.2 counts in the XRT position region of 196.0 pixels or a rate of
5.761 counts/pixel in a radius of 8.0 arcsec. The net count rate (using large
background region) at the XRT position is -0.469 +/- 0.228 (1-sigma) cps. The
3-sigma UL at the XRT position is 0.684 cps or 20.19 mag. The closest srclist
source has ra= 10.0901 dec= -67.1453 mag=19.78 sep=33.59". The closest Genie
source has ra= 10.0903 dec= -67.1454 mag=19.49 sep=33.33".
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?
593585829 832 WHITE srclist found no candidates.
593585829 832 WHITE image found no candidates.
List afterglow candidates for other finding charts.
593608972 23975 U srclist found no candidates.
593608972 23975 U image found no candidates.
593609227 24230 B srclist found no candidates.
593609227 24230 B image found no candidates.
593609541 24544 U srclist found no candidates.
593609541 24544 U image found no candidates.
593609796 24799 B srclist found no candidates.
593609796 24799 B image found no candidates.
593610110 25113 U srclist found no candidates.
593610110 25113 U image found no candidates.
593610365 25368 B srclist found no candidates.
593610365 25368 B image found no candidates.
593615788 30791 U srclist found no candidates.
593615788 30791 U image found no candidates.
593616043 31046 B srclist found no candidates.
593616043 31046 B image found no candidates.
593621538 36541 U srclist found no candidates.
593621538 36541 U image found no candidates.
593621794 36797 B srclist found no candidates.
593621794 36797 B image found no candidates.
593622106 37109 U srclist found no candidates.
593622106 37109 U image found no candidates.
593626023 41026 U srclist found no candidates.
593626023 41026 U image found no candidates.
593626279 41282 B srclist found no candidates.
593626279 41282 B image found no candidates.
593626591 41594 U srclist found no candidates.
593626591 41594 U image found no candidates.
593626847 41850 B srclist found no candidates.
593626847 41850 ? image data are not available.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: -67.14322
GRB_ERROR: 6.5
GRB_RA: 10.11350
IMAGE_START_TIME: 04:57:04
MAGNITUDE: 20.2
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT