srclist overlap message for exposure 2 of trigger 890732
uvot_overlap.pl vrs. 2010-12-20b fem started at 190226d06h32m02s800709usUT
The observation of trigger 890732 started 2019-02-26T06:27:43.6
Examining file 890732_g893_uvot_sky_srclist.fits
The exposure ID is 572855263
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (247.8237,-47.8068) with a roll angle of 96.8
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 (247.8210,-47.7920) with a radius of 3.000 arc min
This is 0.893 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 (247.8173,-47.8066) with a radius of 0.087 arc min
This is 0.257 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 0.024 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 2 of trigger 890732
find_uvot_ag.pl vrs. 2017-02-17 fem started at 190226d06h32m03s736808usUT
Observation start time is 2019-02-26T06:27:43.6
Examining file 890732_g893_uvot_catalog_srclist.fits
The exposure ID is 572855263
The exposure is 150.000 sec.
The bin size is 2 pixels
The filter is WHITE
There are 190 detected source(s) for 890732_g893
*** WARNING -- the sources have filled the available telemetry buffer (190).
srclist_overlap returned: bat_overlap 0.788
srclist_overlap returned: xrt_overlap 1.000
Dimmest detected source in 890732_g893 has mag 18.55
Aspect correction adds -0.00133 degrees (-0.320 sec of time = -3.23 arc sec) to RA
Aspect correction adds -0.00042 degrees (-1.52 arcsec) to Dec
Total aspect correction is 3.57 arcsec
Star catalogs centered at 247.8530 , -47.7729 with radius 8.34 arc min.
n_usno: 4075 n_gsc: 0
*** WARNING -- bright star catalog has 13 entries brighter than 12 mag
The brightest has mag 10.952
RA DEC Mag Color
bright star 0: 247.91489 (16:31:39.57) -47.80216 (-47:48:07.8) 10.95 USNO-V
bright star 1: 247.76332 (16:31:03.20) -47.79031 (-47:47:25.1) 11.64 USNO-V
bright star 2: 247.75635 (16:31:01.52) -47.75292 (-47:45:10.5) 11.55 USNO-V
bright star 3: 247.88286 (16:31:31.89) -47.70052 (-47:42:01.9) 11.10 USNO-V
bright star 4: 247.96454 (16:31:51.49) -47.75175 (-47:45:06.3) 11.33 USNO-V
bright star 5: 247.86193 (16:31:26.86) -47.68190 (-47:40:54.8) 11.90 USNO-V
bright star 6: 247.72314 (16:30:53.55) -47.71556 (-47:42:56.0) 11.78 USNO-V
bright star 7: 247.91860 (16:31:40.46) -47.87062 (-47:52:14.2) 11.43 USNO-V
bright star 8: 247.77196 (16:31:05.27) -47.67917 (-47:40:45.0) 11.96 USNO-V
bright star 9: 247.69070 (16:30:45.77) -47.82853 (-47:49:42.7) 11.89 USNO-V
bright star 10: 247.99523 (16:31:58.86) -47.85076 (-47:51:02.7) 11.17 USNO-V
bright star 11: 248.01930 (16:32:04.63) -47.70411 (-47:42:14.8) 11.96 USNO-V
bright star 12: 248.05138 (16:32:12.33) -47.74984 (-47:44:59.4) 11.36 USNO-V
Mean distance difference (CAT_DELTA) for 185 matched entries is 0.871" for 890732_g893
Mean and std. dev of mag. difference (MAG_DELTA) are 2.183 and 0.572 for 890732_g893
Found 16 entries without IDs and 4 entries that are acceptable afterglow candidates for 890732_g893.
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.
3 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=247.8210 (16:31:17.04) DEC=-47.7920 (-47:47:31.2)
XRT distances are from RA=247.8173 (16:31:16.15) DEC=-47.8066 (-47:48:23.8)
-----------------
Entry 60 in the list of sources is a candidate afterglow for 890732_g893 with 1x1 stamp
ra=247.89827 (16:31:35.59) dec=-47.81095 (-47:48:39.4) +/- 1.1" mag=17.35+/-0.35
dist=196.4 REFID=137
*** The position of this source is inconsistent with the XRT position.
The position is 198.9 arc sec from the BAT position.
src: 60 distr. of nearby unmatched sources: 0 0 0 0 0
Found 10 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
247.8915 -47.8093 17.4 -1 USNO-B1 18.96 17.29 18.03
247.8987 -47.8058 18.6 -1 USNO-B1 16.57 15.01 15.70
247.8981 -47.8062 17.2 -1 USNO-B1 99.99 17.36 99.99
247.8955 -47.8099 7.5 -1 USNO-B1 18.19 16.38 17.18
247.8992 -47.8108 2.3 -1 USNO-B1 15.65 99.99 99.99 *
247.8996 -47.8108 3.2 -1 USNO-B1 15.17 13.21 14.08 *
247.9002 -47.8106 4.9 -1 USNO-B1 16.79 99.99 99.99
247.8943 -47.8145 15.9 -1 USNO-B1 18.78 16.87 17.72
247.9016 -47.8119 8.7 -1 USNO-B1 20.10 17.51 18.66
247.9017 -47.8149 16.4 -1 USNO-B1 18.60 16.76 17.57
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 890732_g893 with 3x3 stamp
ra=247.79968 (16:31:11.92) dec=-47.74574 (-47:44:44.7) +/- 1.1" mag=17.40+/-0.35
dist=223.2 REFID=75
*** The position of this source is inconsistent with the XRT position.
The position is 174.4 arc sec from the BAT position.
src: 76 distr. of nearby unmatched sources: 0 0 0 0 0
Found 11 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
247.7990 -47.7485 10.1 -1 USNO-B1 17.86 17.27 17.53
247.8038 -47.7442 11.5 -1 USNO-B1 20.02 17.47 18.60
247.7972 -47.7501 16.8 -1 USNO-B1 17.49 15.27 16.25
247.8003 -47.7461 2.0 -1 USNO-B1 15.90 13.48 14.55 *
247.7958 -47.7505 19.5 -1 USNO-B1 20.42 14.94 17.37
247.7946 -47.7498 19.1 -1 USNO-B1 99.99 18.33 99.99
247.7950 -47.7475 13.0 -1 USNO-B1 99.99 17.32 99.99
247.7939 -47.7487 17.7 -1 USNO-B1 19.51 17.48 18.38
247.7921 -47.7467 18.6 -1 USNO-B1 18.18 17.42 17.76
247.7943 -47.7431 16.1 -1 USNO-B1 18.30 16.79 17.46
247.7941 -47.7428 17.1 -1 USNO-B1 17.80 15.95 16.77
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 84 in the list of sources is a candidate afterglow for 890732_g893 with 1x1 stamp
ra=247.88866 (16:31:33.28) dec=-47.76327 (-47:45:47.8) +/- 1.1" mag=17.14+/-0.35
dist=232.7 REFID=125
*** The position of this source is inconsistent with the XRT position.
The position is 193.6 arc sec from the BAT position.
src: 84 distr. of nearby unmatched sources: 0 0 0 0 0
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
247.8841 -47.7627 11.1 -1 USNO-B1 18.02 17.29 17.61
247.8839 -47.7608 14.6 -1 USNO-B1 16.87 15.26 15.97
247.8897 -47.7629 3.0 -1 USNO-B1 14.38 13.15 13.70 *
247.8907 -47.7626 5.4 -1 USNO-B1 14.90 13.64 14.20
247.8960 -47.7653 19.3 -1 USNO-B1 15.49 13.41 14.34
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 95 in the list of sources is a candidate afterglow for 890732_g893 with 1x1 stamp
ra=247.82098 (16:31:17.04) dec=-47.73685 (-47:44:12.7) +/- 1.1" mag=17.62+/-0.35
dist=251.2 REFID=114
*** The position of this source is inconsistent with the XRT position.
The position is 198.5 arc sec from the BAT position.
src: 95 distr. of nearby unmatched sources: 0 1 0 0 0
Found 13 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
247.8266 -47.7394 16.3 -1 USNO-B1 19.85 17.70 18.65
247.8245 -47.7401 14.4 -1 USNO-B1 99.99 18.24 99.99
247.8264 -47.7379 13.6 -1 USNO-B1 20.34 17.98 19.03
247.8225 -47.7381 5.6 -1 USNO-B1 17.25 16.59 16.88
247.8233 -47.7377 6.5 -1 USNO-B1 17.60 17.19 17.37
247.8248 -47.7370 9.2 -1 USNO-B1 18.22 18.58 18.42
247.8231 -47.7354 7.4 -1 USNO-B1 18.94 17.25 18.00
247.8202 -47.7364 2.4 -1 USNO-B1 15.35 13.54 14.34 *
247.8186 -47.7371 5.8 -1 USNO-B1 99.99 14.29 99.99
247.8208 -47.7357 4.3 -1 USNO-B1 14.70 16.13 15.50
247.8141 -47.7375 16.9 -1 USNO-B1 15.01 12.18 13.44 *
247.8133 -47.7361 18.9 -1 USNO-B1 18.22 15.63 16.78
247.8144 -47.7343 18.5 -1 USNO-B1 18.09 15.52 16.66
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
247.8178 -47.8059 2.7 -1 USNO-B1 19.38 17.61 18.39
247.8154 -47.8073 5.3 -1 USNO-B1 17.83 17.76 17.79
247.8147 -47.8071 6.6 -1 USNO-B1 18.69 16.98 17.74
The closest star is 2.70" away.
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 < 13",
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 2 of trigger 890732
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 GRB190226 (Swift/BAT trigger 890732) at 06:12:49 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 871 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 100% of the XRT error circle. 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 890732 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 190226d06h32m10s203887usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=890732
-expid=572855263 -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/890732/
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 572855263.63806 or about 2019:057:06:27:38 UT
Found 4071 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 40% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 16 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 18.55 mag. The closest srclist source has ra= 247.8284 dec=
-47.8142 mag=17.04 sep=38.40".
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?
572855263 871 WHITE srclist found no candidates.
572855263 871 ? image data are not available.
List afterglow candidates for other finding charts.
572854907 515 WHITE srclist found no candidates.
572854907 515 WHITE image found no candidates.
------- Tokens for Quick GCN -------