srclist overlap message for exposure 1 of trigger 1069788
uvot_overlap.pl vrs. 2010-12-20b fem started at 210822d17h10m56s275349usUT
The observation of trigger 1069788 started 2021-08-22T09:20:11.1
Examining file ./1069788_g112_uvot_sky_srclist.fits
The exposure ID is 651316811
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (304.4350,5.2830) with a roll angle of 302.1
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 (304.4760,5.2650) with a radius of 3.000 arc min
This is 2.675 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 23.26 sq. arc min or 0.82 of the BAT error circle
The XRT error circle is centered at (304.4375,5.2835) with a radius of 0.033 arc min
This is 0.152 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 1069788
find_uvot_ag.pl vrs. 2020-10-30 fem started at 210822d17h10m59s947748usUT
Observation start time is 2021-08-22T09:20:11.1
Examining file ./1069788_g112_uvot_catalog_srclist.fits
The exposure ID is 651316811
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 190 detected source(s) for 1069788_g112
*** WARNING -- the sources have filled the available telemetry buffer (190).
srclist_overlap returned: bat_overlap 0.715
srclist_overlap returned: xrt_overlap 1.000
Dimmest detected source in 1069788_g112 has mag 19.51
Aspect correction adds -0.00000 degrees (-0.001 sec of time = -0.02 arc sec) to RA
Aspect correction adds 0.00112 degrees ( 4.02 arcsec) to Dec
Total aspect correction is 4.02 arcsec
Star catalogs centered at 304.4381 , 5.2825 with radius 6.36 arc min.
n_usno: 1217 n_gsc: 0
*** WARNING -- bright star catalog has 3 entries brighter than 12 mag
The brightest has mag 10.8393
RA DEC Mag Color
bright star 0: 304.52513 (20:18:06.03) 5.26185 (+05:15:42.6) 10.84 USNO-V
bright star 1: 304.52150 (20:18:05.16) 5.24967 (+05:14:58.8) 11.91 USNO-V
bright star 2: 304.35760 (20:17:25.82) 5.34426 (+05:20:39.4) 11.60 USNO-V
Mean distance difference (CAT_DELTA) for 174 matched entries is 0.715" for 1069788_g112
Mean and std. dev of mag. difference (MAG_DELTA) are 1.606 and 0.583 for 1069788_g112
Found 16 entries without IDs and 11 entries that are acceptable afterglow candidates for 1069788_g112.
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=304.4760 (20:17:54.24) DEC= 5.2650 (+05:15:54.0)
XRT distances are from RA=304.4375 (20:17:45.01) DEC= 5.2835 (+05:17:00.6)
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1069788_g112 with 3x3 stamp
ra=304.43725 (20:17:44.94) dec=5.28292 (+05:16:58.5) +/- 1.1" mag=14.79+/-0.35
dist=2.3 REFID=1
src: 1 distr. of nearby unmatched sources: 0 1 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
304.4394 5.2831 7.9 -1 USNO-B1 18.02 16.98 17.45
304.4352 5.2846 9.4 -1 USNO-B1 20.05 18.44 19.16
304.4388 5.2863 13.3 -1 USNO-B1 19.77 18.71 19.18
304.4421 5.2821 17.7 -1 USNO-B1 17.62 16.91 17.22
304.4387 5.2784 17.0 -1 USNO-B1 19.95 19.21 19.54
304.4348 5.2851 11.9 -1 USNO-B1 99.99 19.30 99.99
##### This source remains a candidate #####
It has no entries within 4" or brighter than 13 mag
-----------------
Entry 48 in the list of sources is a candidate afterglow for 1069788_g112 with 1x1 stamp
ra=304.45264 (20:17:48.63) dec=5.31394 (+05:18:50.2) +/- 1.1" mag=19.09+/-0.35
dist=122.2 REFID=139
*** The position of this source is inconsistent with the XRT position.
The position is 195.1 arc sec from the BAT position.
src: 48 distr. of nearby unmatched sources: 1 0 0 4 1
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
304.4551 5.3091 19.6 -1 USNO-B1 17.39 16.09 16.66
304.4521 5.3140 2.1 -1 USNO-B1 18.23 17.36 17.75 *
304.4566 5.3172 18.6 -1 USNO-B1 12.52 12.21 12.35 *
304.4561 5.3177 18.4 -1 USNO-B1 99.99 12.51 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 59 in the list of sources is a candidate afterglow for 1069788_g112 with 1x1 stamp
ra=304.47916 (20:17:55.00) dec=5.28068 (+05:16:50.5) +/- 1.1" mag=19.28+/-0.35
dist=149.5 REFID=159
*** The position of this source is inconsistent with the XRT position.
The position is 57.6 arc sec from the BAT position.
src: 59 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
304.4778 5.2810 4.9 -1 USNO-B1 16.80 15.44 16.04
304.4776 5.2755 19.3 -1 USNO-B1 20.40 18.76 19.49
304.4786 5.2809 2.1 -1 USNO-B1 18.09 15.62 16.72 *
304.4792 5.2815 3.0 -1 USNO-B1 19.78 18.30 18.96 *
304.4799 5.2767 14.5 -1 USNO-B1 20.88 19.43 20.07
304.4807 5.2791 7.9 -1 USNO-B1 20.40 19.06 19.65
304.4825 5.2795 12.7 -1 USNO-B1 20.28 19.06 19.60
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 61 in the list of sources is a candidate afterglow for 1069788_g112 with 3x3 stamp
ra=304.45718 (20:17:49.72) dec=5.31686 (+05:19:00.7) +/- 1.1" mag=13.86+/-0.35
dist=139.2 REFID=2
*** The position of this source is inconsistent with the XRT position.
The position is 198.5 arc sec from the BAT position.
src: 61 distr. of nearby unmatched sources: 2 1 0 1 1
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
304.4566 5.3172 2.3 -1 USNO-B1 12.52 12.21 12.35 *
304.4561 5.3177 5.0 -1 USNO-B1 99.99 12.51 99.99 *
304.4545 5.3201 15.1 -1 USNO-B1 19.34 18.88 19.08
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 66 in the list of sources is a candidate afterglow for 1069788_g112 with 1x1 stamp
ra=304.47009 (20:17:52.82) dec=5.24966 (+05:14:58.8) +/- 1.1" mag=19.51+/-0.35
dist=168.7 REFID=169
*** The position of this source is inconsistent with the XRT position.
The position is 59.2 arc sec from the BAT position.
src: 66 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
304.4663 5.2496 13.7 -1 USNO-B1 19.07 18.55 18.78
304.4690 5.2520 9.4 -1 USNO-B1 99.99 19.42 99.99
304.4715 5.2535 14.6 -1 USNO-B1 20.30 19.49 19.85
304.4737 5.2534 18.7 -1 USNO-B1 99.99 19.66 99.99
304.4697 5.2491 2.4 -1 USNO-B1 17.84 16.30 16.98 *
304.4752 5.2508 18.7 -1 USNO-B1 21.06 19.34 20.10
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 79 in the list of sources is a candidate afterglow for 1069788_g112 with 1x1 stamp
ra=304.45200 (20:17:48.48) dec=5.23378 (+05:14:01.6) +/- 1.1" mag=18.83+/-0.35
dist=186.3 REFID=186
*** The position of this source is inconsistent with the XRT position.
The position is 141.6 arc sec from the BAT position.
src: 79 distr. of nearby unmatched sources: 0 0 0 0 1
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
304.4526 5.2355 6.5 -1 USNO-B1 19.88 19.23 19.52
304.4517 5.2346 3.0 -1 USNO-B1 15.77 15.13 15.41 *
304.4557 5.2355 14.6 -1 USNO-B1 19.90 19.57 19.72
304.4474 5.2311 19.1 -1 USNO-B1 17.89 17.24 17.53
304.4538 5.2287 19.3 -1 USNO-B1 12.22 11.88 12.03 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 105 in the list of sources is a candidate afterglow for 1069788_g112 with 1x1 stamp
ra=304.45703 (20:17:49.69) dec=5.23044 (+05:13:49.6) +/- 1.1" mag=19.51+/-0.35
dist=203.4 REFID=167
*** The position of this source is inconsistent with the XRT position.
The position is 141.8 arc sec from the BAT position.
src: 105 distr. of nearby unmatched sources: 0 1 0 1 1
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
304.4557 5.2355 18.9 -1 USNO-B1 19.90 19.57 19.72
304.4538 5.2287 13.3 -1 USNO-B1 12.22 11.88 12.03 *
304.4567 5.2287 6.3 -1 USNO-B1 20.06 19.22 19.59
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 111 in the list of sources is a candidate afterglow for 1069788_g112 with 1x1 stamp
ra=304.45758 (20:17:49.82) dec=5.22779 (+05:13:40.0) +/- 1.1" mag=19.43+/-0.35
dist=213.0 REFID=165
*** The position of this source is inconsistent with the XRT position.
The position is 149.4 arc sec from the BAT position.
src: 111 distr. of nearby unmatched sources: 0 1 1 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
304.4538 5.2287 14.1 -1 USNO-B1 12.22 11.88 12.03 *
304.4567 5.2287 4.5 -1 USNO-B1 20.06 19.22 19.59
304.4595 5.2231 18.2 -1 USNO-B1 18.95 17.83 18.33
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 114 in the list of sources is a candidate afterglow for 1069788_g112 with 1x1 stamp
ra=304.45557 (20:17:49.34) dec=5.22562 (+05:13:32.2) +/- 1.1" mag=19.43+/-0.35
dist=218.1 REFID=175
*** The position of this source is inconsistent with the XRT position.
The position is 159.6 arc sec from the BAT position.
src: 114 distr. of nearby unmatched sources: 0 0 1 1 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
304.4538 5.2287 12.8 -1 USNO-B1 12.22 11.88 12.03 *
304.4567 5.2287 11.8 -1 USNO-B1 20.06 19.22 19.59
304.4503 5.2261 19.0 -1 USNO-B1 18.84 18.31 18.54
304.4508 5.2229 19.7 -1 USNO-B1 19.59 18.55 19.01
304.4595 5.2231 16.8 -1 USNO-B1 18.95 17.83 18.33
304.4580 5.2214 17.4 -1 USNO-B1 20.31 19.21 19.70
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 115 in the list of sources is a candidate afterglow for 1069788_g112 with 1x1 stamp
ra=304.49461 (20:17:58.71) dec=5.27654 (+05:16:35.5) +/- 1.1" mag=18.44+/-0.35
dist=206.1 REFID=126
*** The position of this source is inconsistent with the XRT position.
The position is 78.6 arc sec from the BAT position.
src: 115 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
304.4894 5.2748 19.7 -1 USNO-B1 18.64 17.97 18.27
304.4913 5.2775 12.5 -1 USNO-B1 16.39 15.61 15.96
304.4926 5.2798 13.8 -1 USNO-B1 19.29 18.13 18.65
304.4937 5.2759 4.1 -1 USNO-B1 13.98 13.37 13.64
304.4968 5.2773 8.2 -1 USNO-B1 16.17 15.50 15.80
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 131 in the list of sources is a candidate afterglow for 1069788_g112 with 3x3 stamp
ra=304.48564 (20:17:56.55) dec=5.24022 (+05:14:24.8) +/- 1.1" mag=18.88+/-0.35
dist=232.4 REFID=100
*** The position of this source is inconsistent with the XRT position.
The position is 95.7 arc sec from the BAT position.
src: 131 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
304.4851 5.2446 15.8 -1 USNO-B1 20.96 19.24 20.01
304.4851 5.2419 6.4 -1 USNO-B1 19.21 16.64 17.78
304.4854 5.2408 2.3 -1 USNO-B1 17.73 16.05 16.80 *
304.4854 5.2377 9.3 -1 USNO-B1 19.81 18.64 19.16
304.4905 5.2426 19.4 -1 USNO-B1 19.38 18.35 18.81
304.4896 5.2392 14.8 -1 USNO-B1 20.10 18.82 19.39
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Found 2 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
304.4394 5.2831 7.0 -1 USNO-B1 18.02 16.98 17.45
304.4352 5.2846 9.2 -1 USNO-B1 20.05 18.44 19.16
The closest star is 6.98" away.
List UVOT sources within 10" of the XRT position:
Unmatched source ra=304.43725 (20:17:44.94) dec=5.28292 (+05:16:58.5) +/- 1.1" mag=14.79+/-0.35 dist=2.3 REFID=1
There are 1 candidate(s) outside XRT error circle with mag < 18.66
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: 1 good candidate(s) found.
srclist paragraph message for exposure 1 of trigger 1069788
------ Start for Possible Stand-alone Circular ----
In response to GRB210822 (Swift/BAT trigger 1069788) at 09:18:18 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 85 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 20:17:45.00 = 304.43750
DEC(J2000) = +05:16:60.0 = 5.28332
with a 90%-confidence error radius of about 0.61 arc sec. This position is 0.6
arc sec. from the center of the XRT error circle. The estimated magnitude is
13.70 with a 1-sigma error of about 0.14. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.162.
------- notes for trigger 1069788 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 210822d17h11m05s129644usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1069788
-expid=651316811 -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/1069788/
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 651316811.12414 or about 2021:234:09:20:06 UT
Found 1213 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 20% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 16 srclist
source(s) without IDs. There are 1 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 19.22 mag.
Found 29 source(s) in Genie image catalog. 1 source(s) are within 10.0" of the
xrt position. Found 5 Genie image source(s) without IDs. There are 1 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.64 mag. Found 235 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 22% of the Genie image region.
This paragraph is only useful if the XRT position is grossly wrong. There are 1
candidate(s) in the srclist data with mag < 18.66 inside the BAT error region,
but outside the XRT error region. The brightest such source is at RA=304.49461
(20:17:58.71), DEC=5.27654 (+05:16:35.5) (J2000). It has a mag of 18.44. It is
78.6" from the BAT position.
****THIS SOURCE IS OUTSIDE XRT ERROR CIRCLE--USE WITH CAUTION***
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 85 seconds after the BAT trigger. There is a candidate afterglow in
the list of sources generated on-board at
RA(J2000) = 20:17:58.71 = 304.49461
DEC(J2000) = +05:16:35.5 = 5.27654
with a 90%-confidence error radius of about 1.10 arc sec. The estimated
magnitude is 18.44 with a 1-sigma error of about 0.35. No correction has been
made for the expected extinction corresponding to E(B-V) of 0.162.
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?
651316811 85 WHITE 304.43725 5.28292 14.79/19.2 2.3 srclist Yes
651316811 85 WHITE 304.43750 5.28332 13.70/20.6 0.6 image Yes
List afterglow candidates for other finding charts.
651317023 297 U 304.43765 5.28205 18.64/18.1 12.4 srclist Yes
651317023 297 U image found no candidates.
651317601 875 WHITE srclist found no candidates.
651317601 875 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 5.28332
GRB_ERROR: 0.61
GRB_RA: 304.43750
IMAGE_START_TIME: 09:20:06
MAGNITUDE: 13.70
MAG_ERROR: 0.14
MESSAGE_TYPE: ACK
SOURCE: XRT