srclist overlap message for exposure 1 of trigger 809374
uvot_overlap.pl vrs. 2010-12-20b fem started at 180210d00h30m58s919718usUT
The observation of trigger 809374 started 2018-02-10T00:16:33.4
Examining file ./809374_g437_uvot_sky_srclist.fits
The exposure ID is 539914593
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (299.7490,35.0340) with a roll angle of 151.3
It is square with sides of 8.03 arc min. for an area of 64.51 sq arc min
The BAT error circle is centered at (299.7470,35.0380) with a radius of 3.000 arc min
This is 0.261 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 (299.7140,35.0784) with a radius of 0.142 arc min
This is 3.169 arc min from the center of the uvot region
The area of the XRT error circle is 0.063 sq. arc min
The UVOT/XRT overlap is 0.063 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 809374
find_uvot_ag.pl vrs. 2017-02-17 fem started at 180210d00h31m01s276563usUT
Observation start time is 2018-02-10T00:16:33.4
Examining file ./809374_g437_uvot_catalog_srclist.fits
The exposure ID is 539914593
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 181 detected source(s) for 809374_g437
Aspect correction adds -0.00082 degrees (-0.197 sec of time = -2.43 arc sec) to RA
Aspect correction adds 0.00036 degrees ( 1.29 arcsec) to Dec
Total aspect correction is 2.75 arcsec
Star catalogs centered at 299.7483 , 35.0383 with radius 6.18 arc min.
n_usno: 1406 n_gsc: 2076
*** WARNING -- bright star catalog has 8 entries brighter than 12 mag
The brightest has mag 8.83614
RA DEC Mag Color
bright star 0: 299.78774 (19:59:09.06) 35.03084 (+35:01:51.0) 11.76 USNO-V
bright star 1: 299.68381 (19:58:44.11) 35.03669 (+35:02:12.1) 11.38 USNO-V
bright star 2: 299.71711 (19:58:52.11) 35.10518 (+35:06:18.7) 9.55 USNO-V
bright star 3: 299.66151 (19:58:38.76) 35.06923 (+35:04:09.2) 8.84 USNO-V
bright star 4: 299.65338 (19:58:36.81) 35.05796 (+35:03:28.7) 10.73 GSC-F
bright star 5: 299.66580 (19:58:39.79) 34.99329 (+34:59:35.9) 11.08 USNO-V
bright star 6: 299.84265 (19:59:22.24) 35.06398 (+35:03:50.3) 11.63 GSC-F
bright star 7: 299.85678 (19:59:25.63) 35.08498 (+35:05:05.9) 11.71 GSC-F
Mean distance difference (CAT_DELTA) for 149 matched entries is 0.759" for 809374_g437
Mean and std. dev of mag. difference (MAG_DELTA) are 1.850 and 0.456 for 809374_g437
Found 36 entries without IDs and 4 entries that are acceptable afterglow candidates for 809374_g437.
Acceptable entries have no ID, XRT distances < 15", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
30 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=299.7470 (19:58:59.28) DEC=35.0380 (+35:02:16.8)
XRT distances are from RA=299.7140 (19:58:51.37) DEC=35.0784 (+35:04:42.1)
-----------------
Entry 41 in the list of sources is a candidate afterglow for 809374_g437 with 1x1 stamp
ra=299.76223 (19:59:02.94) dec=35.06962 (+35:04:10.6) +/- 1.1" mag=19.15+/-0.35
dist=145.4 REFID=159
*** The position of this source is inconsistent with the XRT position.
The position is 122.4 arc sec from the BAT position.
src: 41 srclist_match has ID
src: 41 distr. of nearby unmatched sources: 0 1 0 0 0
Found 12 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
299.7651 35.0647 19.5 -1 USNO-B1 19.50 17.37 18.31
299.7634 35.0696 3.5 -1 USNO-B1 17.73 14.19 15.76 *
299.7638 35.0698 4.5 -1 USNO-B1 17.20 99.99 99.99
299.7576 35.0723 16.7 -1 USNO-B1 17.81 14.89 16.19
299.7649 35.0647 19.4 -1 GSC2.3 18.57 20.35 99.99
299.7648 35.0669 12.3 -1 GSC2.3 99.99 99.99 99.99
299.7630 35.0692 2.8 -1 GSC2.3 14.84 16.94 99.99 *
299.7622 35.0697 0.3 -1 GSC2.3 99.99 99.99 99.99 *
299.7573 35.0722 17.2 -1 GSC2.3 15.00 18.12 99.99
299.7642 35.0705 6.6 -1 GSC2.3 17.61 99.99 99.99
299.7646 35.0709 8.4 -1 GSC2.3 99.99 99.99 99.99
299.7617 35.0725 10.5 -1 GSC2.3 19.64 99.99 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 47 in the list of sources is a candidate afterglow for 809374_g437 with 1x1 stamp
ra=299.78523 (19:59:08.46) dec=35.05480 (+35:03:17.3) +/- 1.1" mag=19.09+/-0.35
dist=226.3 REFID=162
*** The position of this source is inconsistent with the XRT position.
The position is 127.9 arc sec from the BAT position.
src: 47 distr. of nearby unmatched sources: 0 0 1 0 0
Found 20 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
299.7816 35.0542 11.0 -1 USNO-B1 19.49 17.31 18.28
299.7816 35.0547 10.7 -1 USNO-B1 18.89 16.49 17.56
299.7836 35.0577 11.6 -1 USNO-B1 19.89 16.45 17.97
299.7833 35.0586 14.8 -1 USNO-B1 19.89 17.81 18.73
299.7888 35.0563 11.9 -1 USNO-B1 17.94 15.88 16.79
299.7910 35.0564 17.9 -1 USNO-B1 12.21 12.62 12.44 *
299.7815 35.0536 11.7 -1 GSC2.3 99.99 99.99 99.99
299.7814 35.0545 11.2 -1 GSC2.3 17.23 19.48 99.99
299.7841 35.0518 11.2 -1 GSC2.3 99.99 99.99 99.99
299.7814 35.0571 14.1 -1 GSC2.3 99.99 99.99 99.99
299.7834 35.0546 5.3 -1 GSC2.3 99.99 99.99 99.99
299.7876 35.0511 15.2 -1 GSC2.3 16.69 99.99 99.99
299.7835 35.0576 11.3 -1 GSC2.3 16.84 20.53 99.99
299.7869 35.0550 5.0 -1 GSC2.3 99.99 99.99 99.99
299.7893 35.0518 16.0 -1 GSC2.3 99.99 99.99 99.99
299.7885 35.0554 10.0 -1 GSC2.3 99.99 99.99 99.99
299.7881 35.0563 10.1 -1 GSC2.3 99.99 99.99 99.99
299.7881 35.0576 13.1 -1 GSC2.3 99.99 99.99 99.99
299.7899 35.0563 14.8 -1 GSC2.3 99.99 14.70 99.99
299.7910 35.0564 17.9 -1 GSC2.3 99.99 99.99 12.49 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 76 in the list of sources is a candidate afterglow for 809374_g437 with 1x1 stamp
ra=299.74901 (19:58:59.76) dec=35.09004 (+35:05:24.1) +/- 1.1" mag=19.15+/-0.35
dist=111.3 REFID=177
*** The position of this source is inconsistent with the XRT position.
The position is 187.4 arc sec from the BAT position.
src: 76 distr. of nearby unmatched sources: 0 0 1 0 0
Found 14 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
299.7513 35.0859 16.3 -1 USNO-B1 99.99 18.24 99.99
299.7505 35.0878 9.1 -1 USNO-B1 19.48 17.27 18.25
299.7539 35.0880 16.3 -1 USNO-B1 19.21 16.74 17.84
299.7442 35.0908 14.4 -1 USNO-B1 17.85 99.99 99.99
299.7505 35.0921 8.8 -1 USNO-B1 99.99 17.29 99.99
299.7523 35.0924 12.8 -1 USNO-B1 13.46 12.61 12.99 *
299.7473 35.0945 17.0 -1 USNO-B1 99.99 17.68 99.99
299.7511 35.0859 16.2 -1 GSC2.3 19.84 99.99 99.99
299.7502 35.0877 9.1 -1 GSC2.3 18.97 21.06 99.99
299.7537 35.0879 15.7 -1 GSC2.3 17.91 20.49 99.99
299.7434 35.0911 17.0 -1 GSC2.3 20.27 99.99 99.99
299.7496 35.0918 6.5 -1 GSC2.3 99.99 99.99 99.99
299.7522 35.0924 12.5 -1 GSC2.3 12.20 13.23 99.99 *
299.7472 35.0946 17.2 -1 GSC2.3 19.06 20.66 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 82 in the list of sources is a candidate afterglow for 809374_g437 with 1x1 stamp
ra=299.76297 (19:59:03.11) dec=35.08907 (+35:05:20.6) +/- 1.1" mag=19.09+/-0.35
dist=149.2 REFID=167
*** The position of this source is inconsistent with the XRT position.
The position is 189.8 arc sec from the BAT position.
src: 82 srclist_match has ID
src: 82 distr. of nearby unmatched sources: 0 0 0 0 1
Found 10 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
299.7604 35.0848 17.0 -1 USNO-B1 15.27 14.21 14.68
299.7585 35.0859 17.4 -1 USNO-B1 99.99 17.73 99.99
299.7635 35.0894 1.9 -1 USNO-B1 18.77 16.63 17.58 *
299.7603 35.0848 17.3 -1 GSC2.3 14.12 15.25 99.99
299.7608 35.0873 9.0 -1 GSC2.3 99.99 99.99 99.99
299.7622 35.0872 7.2 -1 GSC2.3 19.98 99.99 99.99
299.7593 35.0895 10.9 -1 GSC2.3 99.99 99.99 99.99
299.7634 35.0893 1.5 -1 GSC2.3 17.58 19.39 99.99 *
299.7627 35.0908 6.2 -1 GSC2.3 99.99 99.99 99.99
299.7666 35.0937 19.8 -1 GSC2.3 19.87 99.99 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Found 3 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
299.7141 35.0800 5.9 -1 USNO-B1 19.98 17.55 18.63
299.7145 35.0809 9.1 -1 USNO-B1 18.23 16.02 17.00
299.7144 35.0809 9.0 -1 GSC2.3 16.56 18.99 99.99
The closest star is 5.94" away.
List UVOT sources within 10" of the XRT position:
Matched source ra=299.71453 (19:58:51.49) dec=35.08105 (+35:04:51.8) +/- 1.1" mag=18.98+/-0.35 dist=9.8 REFID=120
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 19.22, XRT distances < 15",
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 1 of trigger 809374
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: no overlap
SRCLIST PROBLEM: srclist filled telemetry buffer
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 GRB180210 (Swift/BAT trigger 809374) at 00:09:15 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 417 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 none of
the XRT error circle. The coverage of the XRT error circle by the 8'x8' region
for the list of sources generated on-board is uncertain because the large
number of sources filled the available telemetry. The list of sources is
typically complete to about 18 mag. No correction has been made for the large,
but uncertain, extinction expected.
------- notes for trigger 809374 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 180210d00h31m05s839049usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=809374
-expid=539914593 -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/809374/
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 srclist. XRT position found for Genie
image. BAT position found.
UVOT exposure began at MET 539914593.44706 or about 2018:041:00:16:28 UT
Found 2076 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 37% of the srclist region. Found 181 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 36 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 20 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 20.34 mag. Found 287 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
34% of the Genie image region. The XRT position was OUTSIDE the star catalog
search region.
Genie image analysis:
Found 103886.2 counts in the large background region of 5789.0 pixels or a rate
of 17.945 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 19.78 mag. for a
4-arcsec aperture. The number of srclist sources filled the available
telemetry. The weakest source detected was 19.29 mag.
Found 1 srclist source(s) within 10.0" of the XRT position.
The brightest such source has ra= 299.7145 dec= 35.0810 mag=18.98 sep=9.79".
The closest srclist source has ra= 299.7145 dec= 35.0810 mag=18.98 sep=9.79".
The closest Genie source has ra= 299.7242 dec= 35.0463 mag=17.94 sep=119.34".
Report rejected UVOT sources within 10 arcsec XRT position.
Such sources are usually NOT the afterglow.
****THIS SOURCE NEAR XRT POSITION WAS REJECTED--USE WITH CAUTION****
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 417 seconds after the BAT trigger. There is a candidate afterglow in
the list of sources generated on-board at
RA(J2000) = 19:58:51.49 = 299.71453
DEC(J2000) = +35:04:51.8 = 35.08105
with a 90%-confidence error radius of about 1.10 arc sec. This position is 9.79
arc sec. from the center of the XRT error circle. The estimated magnitude is
18.98 with a 1-sigma error of about 0.35. No correction has been made for the
large, but uncertain, extinction expected.
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?
539914593 417 WHITE srclist found no candidates.
539914593 417 WHITE image found no candidates.
List afterglow candidates for other finding charts.
539915048 872 WHITE srclist found no candidates.
539915048 872 WHITE image found no candidates.
------- Tokens for Quick GCN -------