image overlap message for exposure 1 of trigger 1016013
uvot_overlap.pl vrs. 2010-12-20b fem started at 210105d12h37m54s039890usUT
The observation of trigger 1016013 started 2021-01-05T12:29:00.1
Examining file 1016013_g542_uvot_sky_image.fits
The exposure ID is 631542540
The exposure time is 149.868 (seconds)
The filter is WHITE.
The uvot region is centered at (307.7180,41.0629) with a roll angle of 201.2
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 (307.7190,41.0680) with a radius of 3.000 arc min
This is 0.308 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 (307.7566,41.0251) with a radius of 0.087 arc min
This is 2.862 arc min from the center of the uvot region
The area of the XRT error circle is 0.024 sq. arc min
The UVOT/XRT overlap is 0.000 sq. arc min or 0.00 of the XRT error circle
image afterglow message for exposure 1 of trigger 1016013
find_uvot_ag.pl vrs. 2020-10-30 fem started at 210105d12h37m55s990048usUT
Observation start time is 2021-01-05T12:29:00.1
Examining file 1016013_g542_uvot_sources_image.fits
The exposure ID is 631542540
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 7 detected source(s) for 1016013_g542
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 307.7242 , 41.0636 with radius 2.60 arc min.
n_usno: 112 n_gsc: 0
*** WARNING -- XRT position is outside star catalog search region.
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.61348
RA DEC Mag Color
bright star 0: 307.67225 (20:30:41.34) 41.07877 (+41:04:43.6) 11.61 USNO-V
Found 7 entries without IDs and 7 entries that are acceptable afterglow candidates for 1016013_g542.
Acceptable entries have no ID, XRT distances < 13", 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=307.7190 (20:30:52.56) DEC=41.0680 (+41:04:04.8)
XRT distances are from RA=307.7566 (20:31:01.58) DEC=41.0251 (+41:01:30.4)
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1016013_g542 with genie
ra=307.72361 (20:30:53.67) dec=41.04245 (+41:02:32.8) +/- 0.7" mag=16.60+/-0.14
dist=109.2 REFID=1 major=2.4 minor=1.2 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 92.8 arc sec from the BAT position.
Found 1 entries in star catalog(s) within 20.0" of the candidate.
printing all entries
(Entries within 12 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
307.7191 41.0436 12.8 -1 USNO-B1 20.99 19.25 20.03 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1016013_g542 with genie
ra=307.70710 (20:30:49.70) dec=41.04029 (+41:02:25.0) +/- 0.7" mag=17.42+/-0.14
dist=145.1 REFID=2 major=4.4 minor=1.0 flag=16 (aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 104.9 arc sec from the BAT position.
This source is near the edge of image (0.907)
Found 0 entries in star catalog(s) within 20.0" of the candidate.
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 4.4
-----------------
Entry 2 in the list of sources is a candidate afterglow for 1016013_g542 with genie
ra=307.73496 (20:30:56.39) dec=41.05549 (+41:03:19.8) +/- 0.7" mag=17.24+/-0.14
dist=124.2 REFID=3 major=3.0 minor=1.0 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 62.5 arc sec from the BAT position.
Found 3 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
307.7297 41.0575 16.1 -1 USNO-B1 15.85 13.74 14.67
307.7326 41.0573 9.1 -1 USNO-B1 99.99 18.65 99.99 *
307.7353 41.0527 10.1 -1 USNO-B1 99.99 17.29 99.99 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 3 in the list of sources is a candidate afterglow for 1016013_g542 with genie
ra=307.74134 (20:30:57.92) dec=41.05101 (+41:03:03.6) +/- 0.7" mag=16.74+/-0.14
dist=102.1 REFID=4 major=5.3 minor=1.7 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 86.1 arc sec from the BAT position.
This source is near the edge of image (0.914)
Found 5 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
307.7353 41.0527 17.4 -1 USNO-B1 99.99 17.29 99.99 *
307.7425 41.0551 14.9 -1 USNO-B1 19.04 16.24 17.48 *
307.7377 41.0481 14.5 -1 USNO-B1 13.48 12.57 12.97 *
307.7415 41.0487 8.2 -1 USNO-B1 18.34 16.90 17.54 *
307.7376 41.0465 19.2 -1 USNO-B1 99.99 16.50 99.99 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 20.25" or brighter than 12 mag
-----------------
Entry 4 in the list of sources is a candidate afterglow for 1016013_g542 with genie
ra=307.71636 (20:30:51.93) dec=41.04804 (+41:02:53.0) +/- 0.8" mag=17.74+/-0.15
dist=137.0 REFID=5 major=1.9 minor=0.8 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 72.2 arc sec from the BAT position.
Found 3 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
307.7154 41.0500 7.6 -1 USNO-B1 20.77 99.99 99.99 *
307.7093 41.0471 19.5 -1 USNO-B1 99.99 19.79 99.99
307.7191 41.0436 17.8 -1 USNO-B1 20.99 19.25 20.03
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 5 in the list of sources is a candidate afterglow for 1016013_g542 with genie
ra=307.71897 (20:30:52.55) dec=41.08684 (+41:05:12.6) +/- 0.7" mag=15.82+/-0.14
dist=244.6 REFID=6 major=2.7 minor=1.3 flag=16 (aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 67.8 arc sec from the BAT position.
Found 1 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
307.7226 41.0846 12.9 -1 USNO-B1 20.53 18.48 19.39 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 6 in the list of sources is a candidate afterglow for 1016013_g542 with genie
ra=307.73311 (20:30:55.95) dec=41.04706 (+41:02:49.4) +/- 0.7" mag=16.95+/-0.14
dist=101.6 REFID=7 major=2.1 minor=0.9 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 84.6 arc sec from the BAT position.
This source is near the edge of image (0.869)
Found 2 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
307.7377 41.0481 12.9 -1 USNO-B1 13.48 12.57 12.97 *
307.7376 41.0465 12.3 -1 USNO-B1 99.99 16.50 99.99 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 20.25" or brighter than 12 mag
Found 1 entries in star catalog(s) within 20" of the XRT position.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
307.7594 41.0295 17.7 -1 USNO-B1 15.22 13.85 14.46
The closest star is 17.65" away.
List UVOT sources within 20" of the XRT position:
There are 1.7655078E+05 counts in the bkg source region of 6303.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 28.011 counts/pixel (5-sig UL in 4" is 19.54 mag) for 1016013_g542
Do not compute counts in XRT region because position is too far from center.
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 20.10, XRT distances < 13",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Results are questionable because aspect solution FAILED.
Region file: 1016013_631542540_210105d12h37m55s990048usUT_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(307.7180,41.0629,45")
image paragraph message for exposure 1 of trigger 1016013
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: no aspect solution
SRCLIST PROBLEM: no srclist afterglow info
See notes for more details.
WARNING -- because of the LARGE EXTINCTION, results should be used cautiously.
------ Start for Possible Stand-alone Circular ----
In response to GRB210105 (Swift/BAT trigger 1016013) at 12:19:57 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 516 seconds after the BAT trigger. No credible afterglow candidate has
been found in the initial data products. The 2.7'x2.7' sub-image processing
FAILED because of no aspect solution. Results from the list of sources
generated on-board are not available at this time. No correction has been made
for the large, but uncertain, extinction expected.
------- notes for trigger 1016013 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 210105d12h38m21s009814usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1016013
-expid=631542540 -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/1016013/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
Unreliable extinction found for bat position. Unreliable extinction found for
xrt position. XRT position found for Genie image. BAT position found.
*** Warning -- BAT and XRT error circles do NOT overlap.
UVOT exposure began at MET 631542540.08896 or about 2021:005:12:28:55 UT
No information found about the number of stars in the star catalog for srclist
region.
THERE IS NO ASPECT SOLUTION for the image data.
Found 7 source(s) in Genie image catalog. Found 7 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 20.10 mag. Found 108 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 11% of the
Genie image region. The XRT position was OUTSIDE the star catalog search
region. The closest Genie source has ra= 307.7331 dec= 41.0471 mag=16.95
sep=101.56".
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?
631542540 516 WHITE srclist data are not available.
631542540 516 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------