image overlap message for exposure 1 of trigger 1078701
uvot_overlap.pl vrs. 2010-12-20b fem started at 211010d10h51m02s351852usUT
The observation of trigger 1078701 started 2021-10-10T10:44:41.2
Examining file 1078701_g125_uvot_sky_image.fits
The exposure ID is 655555481
The exposure time is 137.746 (seconds)
The filter is WHITE.
The uvot region is centered at (287.0738,29.8224) with a roll angle of 264.6
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 (287.0800,29.8220) with a radius of 3.000 arc min
This is 0.321 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
Could not find the location of an XRT error circle
image afterglow message for exposure 1 of trigger 1078701
find_uvot_ag.pl vrs. 2020-10-30 fem started at 211010d10h51m05s164121usUT
Observation start time is 2021-10-10T10:44:41.2
Examining file 1078701_g125_uvot_catalog_image.fits
The exposure ID is 655555481
The exposure is 137.746 sec.
The bin size is 2 pixels
The filter is WHITE
There are 45 detected source(s) for 1078701_g125
Aspect correction adds -0.00001 degrees (-0.003 sec of time = -0.03 arc sec) to RA
Aspect correction adds -0.00029 degrees (-1.04 arcsec) to Dec
Total aspect correction is 1.04 arcsec
Star catalogs centered at 287.0713 , 29.8249 with radius 2.71 arc min.
n_usno: 353 n_gsc: 0
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.12846
RA DEC Mag Color
bright star 0: 287.10264 (19:08:24.63) 29.85763 (+29:51:27.5) 11.13 USNO-V
*** WARNING -- no XRT distances are available.
Mean distance difference (CAT_DELTA) for 45 matched entries is 0.403" for 1078701_g125
Mean and std. dev of mag. difference (MAG_DELTA) are 1.166 and 0.507 for 1078701_g125
Found 1 entries without IDs and 1 entries that are acceptable afterglow candidates for 1078701_g125.
Acceptable entries have no ID, BAT distance < 200" or XRT distance < 10", 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=287.0800 (19:08:19.20) DEC=29.8220 (+29:49:19.2)
XRT distances are as reported in catalog file.
-----------------
Entry 36 in the list of sources is a candidate afterglow for 1078701_g125 with genie
ra=287.06953 (19:08:16.69) dec=29.84492 (+29:50:41.7) +/- 0.7" mag=19.65+/-0.17
dist=88.7 REFID=4 major=2.5 minor=2.3 flag=0
This source is near the edge of image (0.851)
Found 6 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
287.0683 29.8410 14.7 -1 USNO-B1 13.48 12.93 13.17
287.0652 29.8429 15.3 -1 USNO-B1 17.68 16.84 17.21
287.0659 29.8435 12.5 -1 USNO-B1 19.66 17.35 18.38
287.0666 29.8459 9.7 -1 USNO-B1 18.84 17.76 18.24
287.0701 29.8480 11.2 -1 USNO-B1 19.52 18.20 18.79
287.0661 29.8481 15.8 -1 USNO-B1 19.86 19.12 19.45
*** unacceptable major profile of 2.5
There are 45656.758 counts in the bkg source region of 5277.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 8.652 counts/pixel (5-sig UL in 4" is 20.09 mag) for 1078701_g125
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 20.08, BAT distances < 200",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 1078701_655555481_211010d10h51m05s164121usUT_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(287.0738,29.8224,45")
fk5;-circle(287.083318132493,29.8226025259685,6")
fk5;-circle(287.075309720884,29.8178677414354,6")
fk5;-circle(287.077825754483,29.8152578917289,6")
fk5;-circle(287.072051998576,29.8236219416298,6")
fk5;-circle(287.080134754176,29.8132246423568,6")
fk5;-circle(287.071052189152,29.8280424517172,6")
fk5;-circle(287.084555260652,29.8316576043949,6")
fk5;-circle(287.067853391403,29.8205141120851,6")
fk5;-circle(287.07998847282,29.8111649516783,6")
fk5;-circle(287.065822977149,29.8212822546193,6")
fk5;-circle(287.073342812182,29.8338526144,6")
fk5;-circle(287.072817449768,29.8363156067652,6")
fk5;-circle(287.068234801802,29.809337290779,6")
fk5;-circle(287.058651279406,29.8258834522387,6")
image paragraph message for exposure 1 of trigger 1078701
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: partial overlap
SRCLIST PROBLEM: srclist filled telemetry buffer
See notes for more details.
------ Start for Possible Stand-alone Circular ----
In response to GRB211010 (Swift/BAT trigger 1078701) at 10:42:35 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 138 seconds with the White filter
starting 97 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 25% of
the BAT 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
BAT 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
0.231.
------- notes for trigger 1078701 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 211010d10h51m07s653033usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1078701
-expid=655555481 -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/1078701/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
No XRT position found for srclist. No XRT position found for Genie image. BAT
position found.
UVOT exposure began at MET 655555481.16812 or about 2021:283:10:44:36 UT
Found 1788 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 32% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 9 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 18.61 mag.
Found 45 source(s) in Genie image catalog. Found 1 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 20.08 mag. Found 349 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
33% of the Genie image region.
Genie image analysis:
Found 45656.8 counts in the large background region of 5277.0 pixels or a rate
of 8.652 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 19.91 mag. for a
4-arcsec aperture. The number of srclist sources filled the available
telemetry. The weakest source detected was 19.21 mag.
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?
655555481 97 WHITE srclist found no candidates.
655555481 97 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------