srclist overlap message for exposure 2 of trigger 1013852
uvot_overlap.pl vrs. 2010-12-20b fem started at 201221d18h59m41s653265usUT
The observation of trigger 1013852 started 2020-12-21T07:14:27.1
Examining file ./1013852_g325_uvot_sky_srclist.fits
The exposure ID is 630227667
The exposure time is undefined.
The filter is U.
The uvot region is centered at (214.4858,-45.4112) with a roll angle of 83.1
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 (214.4770,-45.4110) with a radius of 3.000 arc min
This is 0.373 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 (214.4802,-45.4162) with a radius of 0.025 arc min
This is 0.381 arc min from the center of the uvot region
The area of the XRT error circle is 0.002 sq. arc min
The UVOT/XRT overlap is 0.002 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 2 of trigger 1013852
find_uvot_ag.pl vrs. 2020-10-30 fem started at 201221d18h59m50s917123usUT
Observation start time is 2020-12-21T07:14:27.1
Examining file ./1013852_g325_uvot_catalog_srclist.fits
The exposure ID is 630227667
The exposure is 249.935 sec.
The bin size is 2 pixels
The filter is U
There are 190 detected source(s) for 1013852_g325
*** 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 1013852_g325 has mag 18.23
Aspect correction adds 0.00115 degrees (0.277 sec of time = 2.91 arc sec) to RA
Aspect correction adds -0.00045 degrees (-1.62 arcsec) to Dec
Total aspect correction is 3.33 arcsec
Star catalogs centered at 214.4822 , -45.4101 with radius 9.06 arc min.
n_usno: 3678 n_gsc: 0
*** WARNING -- bright star catalog has 6 entries brighter than 12 mag
The brightest has mag 9.35
RA DEC Mag Color
bright star 0: 214.50633 (14:18:01.52) -45.45834 (-45:27:30.0) 9.35 USNO-R
bright star 1: 214.50637 (14:18:01.53) -45.50512 (-45:30:18.4) 11.34 USNO-V
bright star 2: 214.45684 (14:17:49.64) -45.29397 (-45:17:38.3) 10.88 USNO-V
bright star 3: 214.30004 (14:17:12.01) -45.41510 (-45:24:54.4) 11.46 USNO-V
bright star 4: 214.35519 (14:17:25.25) -45.50624 (-45:30:22.5) 10.85 USNO-R
bright star 5: 214.34890 (14:17:23.74) -45.50586 (-45:30:21.1) 10.95 USNO-V
Mean distance difference (CAT_DELTA) for 154 matched entries is 1.111" for 1013852_g325
Mean and std. dev of mag. difference (MAG_DELTA) are 1.621 and 0.832 for 1013852_g325
Found 48 entries without IDs and 11 entries that are acceptable afterglow candidates for 1013852_g325.
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.
4 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=214.4770 (14:17:54.48) DEC=-45.4110 (-45:24:39.6)
XRT distances are from RA=214.4802 (14:17:55.24) DEC=-45.4162 (-45:24:58.3)
-----------------
Entry 3 in the list of sources is a candidate afterglow for 1013852_g325 with 1x1 stamp
ra=214.49610 (14:17:59.06) dec=-45.39763 (-45:23:51.5) +/- 1.1" mag=17.89+/-0.35
dist=78.0 REFID=184
*** The position of this source is inconsistent with the XRT position.
The position is 66.4 arc sec from the BAT position.
src: 3 distr. of nearby unmatched sources: 0 0 0 0 0
Found 7 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
214.4883 -45.3982 19.8 -1 USNO-B1 19.86 19.30 19.55
214.4903 -45.3954 16.8 -1 USNO-B1 20.79 19.70 20.19
214.4955 -45.3971 2.4 -1 USNO-B1 16.90 15.75 16.26 *
214.5022 -45.3999 17.3 -1 USNO-B1 18.67 16.69 17.57
214.4954 -45.3926 18.3 -1 USNO-B1 17.87 17.23 17.52
214.4967 -45.3925 18.6 -1 USNO-B1 20.02 18.56 19.21
214.4975 -45.3924 19.2 -1 USNO-B1 18.57 18.52 18.54
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 8 in the list of sources is a candidate afterglow for 1013852_g325 with 3x3 stamp
ra=214.44029 (14:17:45.67) dec=-45.39947 (-45:23:58.1) +/- 1.1" mag=17.90+/-0.35
dist=117.4 REFID=95
*** The position of this source is inconsistent with the XRT position.
The position is 104.0 arc sec from the BAT position.
src: 8 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
214.4463 -45.4025 18.8 -1 USNO-B1 16.09 15.35 15.68
214.4399 -45.3990 2.0 -1 USNO-B1 16.05 14.92 15.42 *
214.4410 -45.3959 13.1 -1 USNO-B1 17.17 15.98 16.51
214.4358 -45.3995 11.4 -1 USNO-B1 17.82 17.16 17.46
214.4373 -45.3953 16.6 -1 USNO-B1 99.99 20.18 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 9 in the list of sources is a candidate afterglow for 1013852_g325 with 3x3 stamp
ra=214.50400 (14:18:00.96) dec=-45.43827 (-45:26:17.8) +/- 1.1" mag=17.25+/-0.35
dist=99.7 REFID=46
*** The position of this source is inconsistent with the XRT position.
The position is 118.1 arc sec from the BAT position.
src: 9 distr. of nearby unmatched sources: 1 0 0 0 0
Found 7 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
214.5020 -45.4336 17.5 -1 USNO-B1 19.70 18.67 19.13
214.5056 -45.4336 17.2 -1 USNO-B1 20.54 18.64 19.49
214.5038 -45.4359 8.4 -1 USNO-B1 19.68 18.57 19.06
214.5037 -45.4377 2.1 -1 USNO-B1 14.16 12.53 13.25 *
214.5087 -45.4382 11.8 -1 USNO-B1 99.99 18.50 99.99
214.5095 -45.4382 13.8 -1 USNO-B1 21.06 19.50 20.19
214.5013 -45.4428 17.8 -1 USNO-B1 19.81 19.14 19.44
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 16 in the list of sources is a candidate afterglow for 1013852_g325 with 3x3 stamp
ra=214.43690 (14:17:44.86) dec=-45.37771 (-45:22:39.8) +/- 1.1" mag=17.22+/-0.35
dist=176.5 REFID=36
*** The position of this source is inconsistent with the XRT position.
The position is 158.6 arc sec from the BAT position.
src: 16 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
214.4408 -45.3772 10.1 -1 USNO-B1 18.54 17.38 17.89
214.4404 -45.3772 9.0 -1 USNO-B1 17.77 16.93 17.30
214.4372 -45.3772 2.1 -1 USNO-B1 15.86 15.21 15.50 *
214.4298 -45.3795 19.2 -1 USNO-B1 21.81 20.18 20.90
214.4383 -45.3731 17.1 -1 USNO-B1 21.31 19.36 20.23
214.4318 -45.3758 14.5 -1 USNO-B1 20.08 19.38 19.69
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 17 in the list of sources is a candidate afterglow for 1013852_g325 with 3x3 stamp
ra=214.41543 (14:17:39.70) dec=-45.40430 (-45:24:15.5) +/- 1.1" mag=17.39+/-0.35
dist=169.2 REFID=55
*** The position of this source is inconsistent with the XRT position.
The position is 160.0 arc sec from the BAT position.
src: 17 distr. of nearby unmatched sources: 0 0 0 0 0
Found 9 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
214.4222 -45.4015 20.0 -1 USNO-B1 20.31 18.77 19.45
214.4195 -45.4065 12.9 -1 USNO-B1 18.16 17.30 17.68
214.4159 -45.4037 2.3 -1 USNO-B1 15.45 14.88 15.13 *
214.4156 -45.4037 2.3 -1 USNO-B1 99.99 14.80 99.99 *
214.4161 -45.4004 14.0 -1 USNO-B1 18.35 17.73 18.01
214.4139 -45.4082 14.6 -1 USNO-B1 19.09 18.93 19.00
214.4138 -45.4076 12.4 -1 USNO-B1 19.06 17.98 18.46
214.4136 -45.4072 11.3 -1 USNO-B1 18.27 18.86 18.60
214.4102 -45.4024 14.9 -1 USNO-B1 20.88 19.78 20.27
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 19 in the list of sources is a candidate afterglow for 1013852_g325 with 1x1 stamp
ra=214.41444 (14:17:39.47) dec=-45.41898 (-45:25:08.3) +/- 1.1" mag=17.76+/-0.35
dist=166.4 REFID=189
*** The position of this source is inconsistent with the XRT position.
The position is 163.2 arc sec from the BAT position.
src: 19 distr. of nearby unmatched sources: 0 0 0 0 0
Found 4 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
214.4143 -45.4150 14.3 -1 USNO-B1 18.29 18.81 18.58
214.4141 -45.4153 13.3 -1 USNO-B1 99.99 18.52 99.99
214.4140 -45.4176 5.2 -1 USNO-B1 13.04 13.04 13.04
214.4114 -45.4177 9.0 -1 USNO-B1 99.99 18.73 99.99
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 26 in the list of sources is a candidate afterglow for 1013852_g325 with 3x3 stamp
ra=214.48707 (14:17:56.90) dec=-45.46079 (-45:27:38.8) +/- 1.1" mag=17.28+/-0.35
dist=161.5 REFID=43
*** The position of this source is inconsistent with the XRT position.
The position is 180.7 arc sec from the BAT position.
src: 26 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
214.4851 -45.4580 11.2 -1 USNO-B1 99.99 15.39 99.99
214.4850 -45.4585 9.8 -1 USNO-B1 17.50 16.14 16.75
214.4825 -45.4595 12.5 -1 USNO-B1 21.04 19.24 20.04
214.4868 -45.4602 2.3 -1 USNO-B1 15.33 14.42 14.82 *
214.4941 -45.4619 18.1 -1 USNO-B1 20.88 19.78 20.27
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 33 in the list of sources is a candidate afterglow for 1013852_g325 with 3x3 stamp
ra=214.41011 (14:17:38.43) dec=-45.38944 (-45:23:22.0) +/- 1.1" mag=17.97+/-0.35
dist=201.6 REFID=101
*** The position of this source is inconsistent with the XRT position.
The position is 188.4 arc sec from the BAT position.
src: 33 distr. of nearby unmatched sources: 0 0 0 0 0
Found 4 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
214.4160 -45.3897 15.0 -1 USNO-B1 20.44 19.14 19.72
214.4124 -45.3917 9.9 -1 USNO-B1 17.99 17.21 17.56
214.4099 -45.3887 2.6 -1 USNO-B1 16.71 16.14 16.40 *
214.4054 -45.3916 14.1 -1 USNO-B1 19.75 17.75 18.64
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 37 in the list of sources is a candidate afterglow for 1013852_g325 with 1x1 stamp
ra=214.40409 (14:17:36.98) dec=-45.42548 (-45:25:31.7) +/- 1.1" mag=18.04+/-0.35
dist=195.1 REFID=182
*** The position of this source is inconsistent with the XRT position.
The position is 193.9 arc sec from the BAT position.
src: 37 distr. of nearby unmatched sources: 0 0 0 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
214.4069 -45.4224 13.1 -1 USNO-B1 19.36 18.84 19.07
214.4044 -45.4220 12.4 -1 USNO-B1 20.07 19.07 19.51
214.4062 -45.4296 15.7 -1 USNO-B1 20.35 18.80 19.49
214.4029 -45.4215 14.8 -1 USNO-B1 18.88 18.44 18.64
214.4039 -45.4247 2.7 -1 USNO-B1 16.79 16.13 16.43 *
214.4022 -45.4208 17.5 -1 USNO-B1 19.09 18.82 18.94
214.4022 -45.4257 4.7 -1 USNO-B1 19.96 16.25 17.90
214.4018 -45.4258 5.9 -1 USNO-B1 20.28 18.72 19.41
214.4024 -45.4281 10.4 -1 USNO-B1 18.81 17.56 18.12
214.4019 -45.4284 12.0 -1 USNO-B1 99.99 16.51 99.99
214.4004 -45.4294 16.8 -1 USNO-B1 15.82 14.30 14.98
214.3982 -45.4262 15.1 -1 USNO-B1 18.44 18.01 18.20
214.3977 -45.4256 16.2 -1 USNO-B1 99.99 17.30 99.99
214.3975 -45.4252 16.7 -1 USNO-B1 17.99 16.23 17.01
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 1013852_g325 with 1x1 stamp
ra=214.43074 (14:17:43.38) dec=-45.36703 (-45:22:01.3) +/- 1.1" mag=17.70+/-0.35
dist=216.7 REFID=136
*** The position of this source is inconsistent with the XRT position.
The position is 198.3 arc sec from the BAT position.
src: 38 distr. of nearby unmatched sources: 0 0 0 1 0
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
214.4306 -45.3664 2.2 -1 USNO-B1 17.01 16.29 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 39 in the list of sources is a candidate afterglow for 1013852_g325 with 1x1 stamp
ra=214.39934 (14:17:35.84) dec=-45.41271 (-45:24:45.8) +/- 1.1" mag=17.96+/-0.35
dist=204.7 REFID=167
*** The position of this source is inconsistent with the XRT position.
The position is 198.9 arc sec from the BAT position.
src: 39 distr. of nearby unmatched sources: 0 0 0 0 0
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
214.3991 -45.4120 2.7 -1 USNO-B1 16.27 15.26 15.71 *
214.3993 -45.4157 10.6 -1 USNO-B1 21.77 99.99 99.99
214.3983 -45.4109 7.0 -1 USNO-B1 20.14 18.91 19.46
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
214.4814 -45.4181 7.6 -1 USNO-B1 20.87 19.66 20.19
The closest star is 7.63" away.
List UVOT sources within 10" of the XRT position:
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 18.12, 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 2 of trigger 1013852
SRCLIST PROBLEM: srclist filled telemetry buffer
------ Start for Possible Stand-alone Circular ----
In response to GRB201221 (Swift/BAT trigger 1013852) at 07:09:01 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 250 seconds with the U filter starting
299 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 100% of the
XRT error circle. The typical 3-sigma upper limit has been about 19.2 mag. 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 18.0 mag. No
correction has been made for the expected extinction corresponding to E(B-V) of
0.11.
------- notes for trigger 1013852 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 201221d18h59m55s717973usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1013852
-expid=630227667 -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/1013852/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
XRT position found for srclist. XRT position found for Genie image. BAT
position found.
UVOT exposure began at MET 630227667.0731 or about 2020:356:07:14:22 UT
Found 3674 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 31% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 48 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 18.12 mag.
Found 19 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 19.73 mag. Found 266 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
27% of the Genie image region.
Genie image analysis:
Found 62001.1 counts in the large background region of 5756.0 pixels or a rate
of 10.772 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 19.03 mag. for a
4-arcsec aperture.
Found 2141.1 counts in the XRT position region of 198.0 pixels or a rate of
10.814 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is 0.148 +/- 0.200 (1-sigma) cps or
20.27 mag and a range from 19.34 to 99.99 mag. The 3-sigma UL at the XRT
position is 0.749 cps or 18.51 mag. The number of srclist sources filled the
available telemetry. The weakest source detected was 18.23 mag. The closest
srclist source has ra= 214.4904 dec= -45.4128 mag=17.89 sep=28.39". The closest
Genie source has ra= 214.4852 dec= -45.4218 mag=19.39 sep=23.81".
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?
630227667 299 U srclist found no candidates.
630227667 299 U image found no candidates.
List afterglow candidates for other finding charts.
630227509 141 WHITE srclist found no candidates.
630227509 141 WHITE image found no candidates.
630228247 879 WHITE srclist found no candidates.
630228247 879 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: u
GRB_DEC: -45.41619
GRB_ERROR: 5
GRB_RA: 214.48017
IMAGE_START_TIME: 07:14:22
MAGNITUDE: 18.5
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT