srclist overlap message for exposure 3 of trigger 885960
uvot_overlap.pl vrs. 2010-12-20b fem started at 190127d01h14m50s634208usUT
The observation of trigger 885960 started 2019-01-27T01:10:57.6
Examining file 885960_g887_uvot_sky_srclist.fits
The exposure ID is 570244257
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (207.0609,-63.2750) with a roll angle of 109.1
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 (207.0350,-63.2680) with a radius of 3.000 arc min
This is 0.815 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 (207.0558,-63.2733) with a radius of 0.078 arc min
This is 0.171 arc min from the center of the uvot region
The area of the XRT error circle is 0.019 sq. arc min
The UVOT/XRT overlap is 0.019 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 3 of trigger 885960
find_uvot_ag.pl vrs. 2017-02-17 fem started at 190127d01h14m51s555597usUT
Observation start time is 2019-01-27T01:10:57.6
Examining file 885960_g887_uvot_catalog_srclist.fits
The exposure ID is 570244257
The exposure is 150.000 sec.
The bin size is 2 pixels
The filter is WHITE
There are 190 detected source(s) for 885960_g887
*** WARNING -- the sources have filled the available telemetry buffer (190).
srclist_overlap returned: bat_overlap 0.293
srclist_overlap returned: xrt_overlap 0.000
Dimmest detected source in 885960_g887 has mag 18.83
Aspect correction adds -0.00440 degrees (-1.057 sec of time = -7.13 arc sec) to RA
Aspect correction adds -0.00137 degrees (-4.93 arcsec) to Dec
Total aspect correction is 8.67 arcsec
Star catalogs centered at 207.1244 , -63.2475 with radius 7.57 arc min.
n_usno: 4726 n_gsc: 0
*** WARNING -- bright star catalog has 20 entries brighter than 12 mag
The brightest has mag 8.6663
RA DEC Mag Color
bright star 0: 207.10769 (13:48:25.84) -63.26928 (-63:16:09.4) 11.74 USNO-V
bright star 1: 207.14795 (13:48:35.51) -63.21144 (-63:12:41.2) 11.02 USNO-V
bright star 2: 207.22470 (13:48:53.93) -63.22316 (-63:13:23.4) 9.34 USNO-V
bright star 3: 207.19671 (13:48:47.21) -63.29646 (-63:17:47.2) 11.41 USNO-V
bright star 4: 207.03195 (13:48:07.67) -63.19904 (-63:11:56.6) 11.93 USNO-V
bright star 5: 207.11969 (13:48:28.73) -63.18324 (-63:10:59.6) 11.22 USNO-V
bright star 6: 207.27008 (13:49:04.82) -63.26310 (-63:15:47.2) 11.42 USNO-V
bright star 7: 207.18633 (13:48:44.72) -63.32817 (-63:19:41.4) 11.82 USNO-V
bright star 8: 206.93171 (13:47:43.61) -63.23659 (-63:14:11.7) 10.77 USNO-R
bright star 9: 207.17008 (13:48:40.82) -63.34155 (-63:20:29.6) 11.61 USNO-V
bright star 10: 206.97470 (13:47:53.93) -63.31862 (-63:19:07.0) 10.62 USNO-V
bright star 11: 207.13089 (13:48:31.41) -63.14394 (-63:08:38.2) 8.67 USNO-V
bright star 12: 206.88945 (13:47:33.47) -63.23876 (-63:14:19.5) 11.49 USNO-V
bright star 13: 206.89642 (13:47:35.14) -63.22006 (-63:13:12.2) 11.94 USNO-V
bright star 14: 206.98038 (13:47:55.29) -63.33921 (-63:20:21.1) 11.66 USNO-V
bright star 15: 207.25441 (13:49:01.06) -63.14320 (-63:08:35.5) 11.26 USNO-R
bright star 16: 207.25898 (13:49:02.16) -63.14366 (-63:08:37.2) 11.13 USNO-V
bright star 17: 207.01512 (13:48:03.63) -63.35875 (-63:21:31.5) 10.95 USNO-V
bright star 18: 207.01134 (13:48:02.72) -63.36040 (-63:21:37.4) 10.05 USNO-R
bright star 19: 207.05505 (13:48:13.21) -63.36764 (-63:22:03.5) 11.68 USNO-V
Mean distance difference (CAT_DELTA) for 181 matched entries is 0.879" for 885960_g887
Mean and std. dev of mag. difference (MAG_DELTA) are 1.886 and 0.769 for 885960_g887
Found 24 entries without IDs and 3 entries that are acceptable afterglow candidates for 885960_g887.
Acceptable entries have no ID, XRT distances < 11.75", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
12 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=207.0350 (13:48:08.40) DEC=-63.2680 (-63:16:04.8)
XRT distances are from RA=207.0558 (13:48:13.39) DEC=-63.2733 (-63:16:23.9)
-----------------
Entry 14 in the list of sources is a candidate afterglow for 885960_g887 with 1x1 stamp
ra=207.14306 (13:48:34.33) dec=-63.27584 (-63:16:33.0) +/- 1.1" mag=18.48+/-0.35
dist=141.6 REFID=142
*** The position of this source is inconsistent with the XRT position.
The position is 177.2 arc sec from the BAT position.
src: 14 distr. of nearby unmatched sources: 0 0 0 0 0
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
207.1392 -63.2734 10.8 -1 USNO-B1 19.27 16.62 17.80
207.1395 -63.2737 9.6 -1 USNO-B1 99.99 18.10 99.99
207.1476 -63.2744 9.1 -1 USNO-B1 15.06 14.19 14.58
207.1446 -63.2751 3.5 -1 USNO-B1 16.50 15.04 15.69 *
207.1345 -63.2767 14.3 -1 USNO-B1 19.87 18.01 18.84
207.1345 -63.2796 19.2 -1 USNO-B1 19.27 17.30 18.17
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 15 in the list of sources is a candidate afterglow for 885960_g887 with 1x1 stamp
ra=207.13507 (13:48:32.42) dec=-63.25390 (-63:15:14.1) +/- 1.1" mag=17.76+/-0.35
dist=146.2 REFID=114
*** The position of this source is inconsistent with the XRT position.
The position is 169.8 arc sec from the BAT position.
src: 15 srclist_match has ID
src: 15 distr. of nearby unmatched sources: 0 0 0 0 0
Found 16 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
207.1322 -63.2511 11.2 -1 USNO-B1 99.99 15.38 99.99
207.1340 -63.2504 12.9 -1 USNO-B1 19.41 99.99 99.99
207.1324 -63.2517 9.1 -1 USNO-B1 19.16 14.66 16.66
207.1361 -63.2497 15.1 -1 USNO-B1 18.75 16.41 17.45
207.1326 -63.2525 6.5 -1 USNO-B1 17.56 15.38 16.35
207.1376 -63.2517 8.8 -1 USNO-B1 17.74 16.66 17.14
207.1266 -63.2549 14.2 -1 USNO-B1 17.30 16.52 16.87
207.1371 -63.2524 6.4 -1 USNO-B1 19.30 15.02 16.92
207.1347 -63.2535 1.5 -1 USNO-B1 17.03 14.29 15.51 *
207.1386 -63.2522 8.3 -1 USNO-B1 17.58 16.11 16.76
207.1388 -63.2530 6.9 -1 USNO-B1 17.91 17.79 17.84
207.1397 -63.2539 7.5 -1 USNO-B1 20.04 18.64 19.26
207.1460 -63.2527 18.3 -1 USNO-B1 20.34 17.69 18.87
207.1457 -63.2544 17.4 -1 USNO-B1 16.75 14.61 15.56
207.1389 -63.2588 18.6 -1 USNO-B1 18.61 16.80 17.60
207.1438 -63.2573 18.7 -1 USNO-B1 19.00 17.95 18.42
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 38 in the list of sources is a candidate afterglow for 885960_g887 with 3x3 stamp
ra=207.06268 (13:48:15.04) dec=-63.21627 (-63:12:58.6) +/- 1.1" mag=16.73+/-0.35
dist=205.6 REFID=46
*** The position of this source is inconsistent with the XRT position.
The position is 191.6 arc sec from the BAT position.
src: 38 distr. of nearby unmatched sources: 0 0 0 0 0
Found 6 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
207.0699 -63.2187 14.7 -1 USNO-B1 18.83 18.03 18.39
207.0693 -63.2181 12.5 -1 USNO-B1 17.03 17.38 17.22
207.0669 -63.2184 10.3 -1 USNO-B1 20.63 17.14 18.69
207.0695 -63.2153 11.6 -1 USNO-B1 12.88 11.61 12.17 *
207.0702 -63.2143 14.1 -1 USNO-B1 19.94 16.62 18.09
207.0574 -63.2120 17.5 -1 USNO-B1 19.10 19.77 19.47
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
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 19.22, XRT distances < 11.75",
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 3 of trigger 885960
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: no image afterglow info
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 GRB190127 (Swift/BAT trigger 885960) at 00:56:09 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of nominal 150.000 seconds with the White
filter starting 865 seconds after the BAT trigger. No credible afterglow
candidate has been found in the initial data products. Data from the 2.7'x2.7'
sub-image are not available at this time. The 8'x8' region for the list of
sources generated on-board covers 0.00% of the XRT error circle. No correction
has been made for the large, but uncertain, extinction expected.
------- notes for trigger 885960 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 190127d01h14m57s356663usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=885960
-expid=570244257 -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/885960/
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.
*** Warning -- no exposure found, using srclist assumed value.
XRT position found for srclist. BAT position found.
UVOT exposure began at MET 570244257.63046 or about 2019:027:01:10:52 UT
Found 4722 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 57% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 24 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 19.22 mag.
The number of srclist sources filled the available telemetry. The weakest
source detected was 18.83 mag. The closest srclist source has ra= 207.0806 dec=
-63.2565 mag=16.38 sep=72.73".
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?
570244257 865 WHITE srclist found no candidates.
570244257 865 ? image data are not available.
List afterglow candidates for other finding charts.
570243589 197 WHITE 207.05323 -63.27491 17.96/19.2 7.1 srclist Yes
570243589 197 WHITE 207.05348 -63.27458 16.99/20.4 5.9 image Yes
570243748 356 U 207.05305 -63.27465 17.73/18.1 6.6 srclist Yes
570243748 356 U 207.05344 -63.27456 17.02/20.2 5.9 image Yes
------- Tokens for Quick GCN -------