srclist overlap message for exposure 1 of trigger 899979
uvot_overlap.pl vrs. 2010-12-20b fem started at 190423d02h44m35s603202usUT
The observation of trigger 899979 started 2019-04-22T23:04:44.0
Examining file ./899979_g553_uvot_sky_srclist.fits
The exposure ID is 577667083
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (182.1235,-60.2432) with a roll angle of 215.8
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 (182.1240,-60.2380) with a radius of 3.000 arc min
This is 0.314 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 (182.0345,-60.2242) with a radius of 0.030 arc min
This is 2.885 arc min from the center of the uvot region
The area of the XRT error circle is 0.003 sq. arc min
The UVOT/XRT overlap is 0.003 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 899979
find_uvot_ag.pl vrs. 2017-02-17 fem started at 190423d02h44m38s733516usUT
Observation start time is 2019-04-22T23:04:44.0
Examining file ./899979_g553_uvot_catalog_srclist.fits
The exposure ID is 577667083
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 190 detected source(s) for 899979_g553
*** WARNING -- the sources have filled the available telemetry buffer (190).
srclist_overlap returned: bat_overlap 1.000
srclist_overlap returned: xrt_overlap 1.000
Dimmest detected source in 899979_g553 has mag 18.79
Aspect correction adds -0.00151 degrees (-0.363 sec of time = -2.70 arc sec) to RA
Aspect correction adds -0.00166 degrees (-5.96 arcsec) to Dec
Total aspect correction is 6.55 arcsec
Star catalogs centered at 182.1159 , -60.2398 with radius 6.14 arc min.
n_usno: 2098 n_gsc: 0
*** WARNING -- bright star catalog has 6 entries brighter than 12 mag
The brightest has mag 11.4406
RA DEC Mag Color
bright star 0: 182.15575 (12:08:37.38) -60.20486 (-60:12:17.5) 11.91 USNO-V
bright star 1: 182.15074 (12:08:36.18) -60.18565 (-60:11:08.4) 11.96 USNO-V
bright star 2: 182.21101 (12:08:50.64) -60.31044 (-60:18:37.6) 11.92 USNO-V
bright star 3: 182.02295 (12:08:05.51) -60.31207 (-60:18:43.4) 11.92 USNO-V
bright star 4: 182.26261 (12:09:03.03) -60.17588 (-60:10:33.2) 11.44 USNO-V
bright star 5: 182.16107 (12:08:38.66) -60.14083 (-60:08:27.0) 11.84 USNO-V
Mean distance difference (CAT_DELTA) for 174 matched entries is 0.873" for 899979_g553
Mean and std. dev of mag. difference (MAG_DELTA) are 2.076 and 0.599 for 899979_g553
Found 23 entries without IDs and 8 entries that are acceptable afterglow candidates for 899979_g553.
Acceptable entries have no ID, XRT distances < 5", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
1 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=182.1240 (12:08:29.76) DEC=-60.2380 (-60:14:16.8)
XRT distances are from RA=182.0345 (12:08:08.28) DEC=-60.2242 (-60:13:27.3)
-----------------
Entry 32 in the list of sources is a candidate afterglow for 899979_g553 with 3x3 stamp
ra=182.09278 (12:08:22.27) dec=-60.26445 (-60:15:52.0) +/- 1.1" mag=17.99+/-0.35
dist=178.3 REFID=89
*** The position of this source is inconsistent with the XRT position.
The position is 110.4 arc sec from the BAT position.
src: 32 distr. of nearby unmatched sources: 0 0 0 0 0
Found 5 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
182.0886 -60.2595 19.4 -1 USNO-B1 17.23 16.62 16.89
182.0995 -60.2641 12.0 -1 USNO-B1 17.66 16.40 16.96
182.0917 -60.2642 2.0 -1 USNO-B1 15.57 14.64 15.05 *
182.0973 -60.2655 9.0 -1 USNO-B1 99.99 17.34 99.99
182.0984 -60.2659 11.4 -1 USNO-B1 18.04 17.05 17.49
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 36 in the list of sources is a candidate afterglow for 899979_g553 with 3x3 stamp
ra=182.08176 (12:08:19.62) dec=-60.21469 (-60:12:52.9) +/- 1.1" mag=16.31+/-0.35
dist=91.2 REFID=24
*** The position of this source is inconsistent with the XRT position.
The position is 112.9 arc sec from the BAT position.
src: 36 srclist_match has ID
src: 36 distr. of nearby unmatched sources: 1 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
182.0867 -60.2197 20.0 -1 USNO-B1 17.38 16.98 17.16
182.0818 -60.2183 13.0 -1 USNO-B1 18.11 16.70 17.33
182.0806 -60.2159 4.8 -1 USNO-B1 17.33 16.30 16.76
182.0814 -60.2150 1.4 -1 USNO-B1 14.98 14.25 14.57 *
182.0890 -60.2124 15.3 -1 USNO-B1 16.43 15.73 16.04
182.0740 -60.2115 18.1 -1 USNO-B1 17.98 17.82 17.89
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 43 in the list of sources is a candidate afterglow for 899979_g553 with 1x1 stamp
ra=182.16758 (12:08:40.22) dec=-60.26667 (-60:16:00.0) +/- 1.1" mag=18.18+/-0.35
dist=282.5 REFID=184
*** The position of this source is inconsistent with the XRT position.
The position is 129.3 arc sec from the BAT position.
src: 43 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
182.1627 -60.2622 18.3 -1 USNO-B1 18.37 18.02 18.17
182.1606 -60.2638 16.1 -1 USNO-B1 18.65 17.29 17.89
182.1592 -60.2691 17.4 -1 USNO-B1 18.06 17.40 17.69
182.1660 -60.2666 2.8 -1 USNO-B1 15.36 14.29 14.77 *
182.1743 -60.2646 14.1 -1 USNO-B1 17.55 17.10 17.30
182.1731 -60.2677 10.6 -1 USNO-B1 17.48 16.86 17.13
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 59 in the list of sources is a candidate afterglow for 899979_g553 with 3x3 stamp
ra=182.05630 (12:08:13.51) dec=-60.26364 (-60:15:49.1) +/- 1.1" mag=16.28+/-0.35
dist=147.0 REFID=26
*** The position of this source is inconsistent with the XRT position.
The position is 152.1 arc sec from the BAT position.
src: 59 distr. of nearby unmatched sources: 1 0 0 0 0
Found 8 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
182.0580 -60.2597 14.4 -1 USNO-B1 17.68 17.85 17.77
182.0576 -60.2599 13.6 -1 USNO-B1 17.50 17.54 17.52
182.0584 -60.2609 10.6 -1 USNO-B1 15.53 14.52 14.97
182.0540 -60.2582 19.9 -1 USNO-B1 17.99 17.24 17.57
182.0575 -60.2635 2.2 -1 USNO-B1 14.87 13.84 14.29 *
182.0571 -60.2657 7.4 -1 USNO-B1 18.54 18.08 18.28
182.0473 -60.2617 17.5 -1 USNO-B1 17.40 16.62 16.97
182.0456 -60.2621 19.9 -1 USNO-B1 16.89 16.39 16.61
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 62 in the list of sources is a candidate afterglow for 899979_g553 with 1x1 stamp
ra=182.09043 (12:08:21.70) dec=-60.19704 (-60:11:49.3) +/- 1.1" mag=17.84+/-0.35
dist=140.0 REFID=125
*** The position of this source is inconsistent with the XRT position.
The position is 159.2 arc sec from the BAT position.
src: 62 distr. of nearby unmatched sources: 0 1 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
182.0901 -60.1985 5.3 -1 USNO-B1 15.98 15.19 15.54
182.0952 -60.1974 8.7 -1 USNO-B1 17.28 16.69 16.95
182.0905 -60.1980 3.3 -1 USNO-B1 16.37 13.68 14.88 *
182.0815 -60.1963 16.1 -1 USNO-B1 16.50 15.70 16.05
182.0979 -60.1938 17.8 -1 USNO-B1 18.16 15.86 16.88
182.0930 -60.1923 17.8 -1 USNO-B1 16.39 15.63 15.97
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 70 in the list of sources is a candidate afterglow for 899979_g553 with 3x3 stamp
ra=182.21086 (12:08:50.61) dec=-60.22279 (-60:13:22.0) +/- 1.1" mag=15.00+/-0.35
dist=315.3 REFID=11
*** The position of this source is inconsistent with the XRT position.
The position is 164.6 arc sec from the BAT position.
src: 70 srclist_match has ID
src: 70 distr. of nearby unmatched sources: 1 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
182.2005 -60.2243 19.3 -1 USNO-B1 18.17 17.26 17.66
182.2087 -60.2244 7.0 -1 USNO-B1 99.99 16.95 99.99
182.2115 -60.2245 6.3 -1 USNO-B1 17.21 17.04 17.12
182.2106 -60.2231 1.1 -1 USNO-B1 14.52 13.62 14.02 *
182.2164 -60.2268 17.6 -1 USNO-B1 17.52 16.89 17.17
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 98 in the list of sources is a candidate afterglow for 899979_g553 with 3x3 stamp
ra=182.04779 (12:08:11.47) dec=-60.27583 (-60:16:33.0) +/- 1.1" mag=16.96+/-0.35
dist=187.2 REFID=46
*** The position of this source is inconsistent with the XRT position.
The position is 192.5 arc sec from the BAT position.
src: 98 srclist_match has ID
src: 98 distr. of nearby unmatched sources: 0 0 0 0 1
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
182.0488 -60.2719 14.1 -1 USNO-B1 16.20 15.23 15.66
182.0574 -60.2759 17.1 -1 USNO-B1 16.42 15.60 15.96
182.0569 -60.2776 17.5 -1 USNO-B1 17.98 16.75 17.30
182.0444 -60.2718 15.6 -1 USNO-B1 15.67 14.00 14.74
182.0506 -60.2774 7.7 -1 USNO-B1 15.74 15.05 15.36
182.0468 -60.2758 1.8 -1 USNO-B1 15.58 14.52 14.99 *
182.0550 -60.2795 18.4 -1 USNO-B1 16.86 15.84 16.29
182.0421 -60.2738 12.4 -1 USNO-B1 18.38 14.19 16.05
182.0431 -60.2761 8.5 -1 USNO-B1 15.57 14.70 15.08
182.0429 -60.2772 9.9 -1 USNO-B1 17.87 16.45 17.08
182.0411 -60.2783 15.1 -1 USNO-B1 99.99 17.33 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 107 in the list of sources is a candidate afterglow for 899979_g553 with 3x3 stamp
ra=182.05404 (12:08:12.97) dec=-60.28060 (-60:16:50.1) +/- 1.1" mag=17.66+/-0.35
dist=205.8 REFID=94
*** The position of this source is inconsistent with the XRT position.
The position is 197.8 arc sec from the BAT position.
src: 107 srclist_match has ID
src: 107 distr. of nearby unmatched sources: 1 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
182.0574 -60.2759 18.0 -1 USNO-B1 16.42 15.60 15.96
182.0569 -60.2776 12.0 -1 USNO-B1 17.98 16.75 17.30
182.0506 -60.2774 12.9 -1 USNO-B1 15.74 15.05 15.36
182.0550 -60.2795 4.4 -1 USNO-B1 16.86 15.84 16.29
182.0549 -60.2804 1.6 -1 USNO-B1 15.78 14.21 14.91 *
182.0557 -60.2811 3.5 -1 USNO-B1 17.07 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 1 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
182.0344 -60.2257 5.3 -1 USNO-B1 15.62 14.81 15.17
The closest star is 5.30" away.
List UVOT sources within 10" of the XRT position:
Matched source ra=182.03467 (12:08:08.32) dec=-60.22590 (-60:13:33.2) +/- 1.1" mag=17.44+/-0.35 dist=5.9 REFID=78
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 < 5",
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 899979
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 GRB190422 (Swift/BAT trigger 899979) at 22:55:29 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 531 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 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 899979 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 190423d02h44m44s061504usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=899979
-expid=577667083 -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/899979/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
Large extinction of 5.23 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 577667083.97362 or about 2019:112:23:04:38 UT
Found 2094 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 38% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 23 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 57 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 20.46 mag. Found 445 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
39% of the Genie image region.
Genie image analysis:
Found 63061.8 counts in the large background region of 4394.0 pixels or a rate
of 14.352 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 19.90 mag. for a
4-arcsec aperture. The number of srclist sources filled the available
telemetry. The weakest source detected was 18.79 mag.
Found 1 srclist source(s) within 10.0" of the XRT position.
The brightest such source has ra= 182.0347 dec= -60.2259 mag=17.44 sep=5.94".
The closest srclist source has ra= 182.0347 dec= -60.2259 mag=17.44 sep=5.94".
The closest Genie source has ra= 182.0754 dec= -60.2320 mag=19.23 sep=78.22".
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 531 seconds after the BAT trigger. There is a candidate afterglow in
the list of sources generated on-board at
RA(J2000) = 12:08:08.32 = 182.03467
DEC(J2000) = -60:13:33.2 = -60.22590
with a 90%-confidence error radius of about 1.10 arc sec. This position is 5.94
arc sec. from the center of the XRT error circle. The estimated magnitude is
17.44 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?
577667083 531 WHITE srclist found no candidates.
577667083 531 WHITE image found no candidates.
List afterglow candidates for other finding charts.
577667417 865 WHITE srclist found no candidates.
577667417 865 WHITE image found no candidates.
------- Tokens for Quick GCN -------