image overlap message for exposure 2 of trigger 1116441
uvot_overlap.pl vrs. 2010-12-20b fem started at 220716d02h30m03s419759usUT
The observation of trigger 1116441 started 2022-07-15T22:30:27.3
Examining file ./1116441_g344_uvot_sky_image.fits
The exposure ID is 679617027
The exposure time is 249.935 (seconds)
The filter is U.
*** Warning -- found 12557 null pixels in the image.
The uvot region is centered at (254.8827,-33.5993) with a roll angle of 261.8
It is square with sides of 2.68 arc min. for an area of 7.17 sq arc min
The BAT error circle is centered at (254.8890,-33.5970) with a radius of 3.000 arc min
This is 0.346 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 7.17 sq. arc min or 0.25 of the BAT error circle
The XRT error circle is centered at (254.8753,-33.5977) with a radius of 0.042 arc min
This is 0.379 arc min from the center of the uvot region
The area of the XRT error circle is 0.005 sq. arc min
The UVOT/XRT overlap is 0.005 sq. arc min or 1.00 of the XRT error circle
image afterglow message for exposure 2 of trigger 1116441
find_uvot_ag.pl vrs. 2020-10-30 fem started at 220716d02h30m19s480753usUT
Observation start time is 2022-07-15T22:30:27.3
Examining file ./1116441_g344_uvot_catalog_image.fits
The exposure ID is 679617027
The exposure is 249.935 sec.
The bin size is 2 pixels
The filter is U
There are 23 detected source(s) for 1116441_g344
Aspect correction adds -0.00124 degrees (-0.297 sec of time = -3.71 arc sec) to RA
Aspect correction adds -0.00022 degrees (-0.80 arcsec) to Dec
Total aspect correction is 3.79 arcsec
Star catalogs centered at 254.8796 , -33.6062 with radius 2.29 arc min.
n_usno: 785 n_gsc: 0
*** WARNING -- bright star catalog has 2 entries brighter than 12 mag
The brightest has mag 11.395
RA DEC Mag Color
bright star 0: 254.89257 (16:59:34.22) -33.59911 (-33:35:56.8) 11.39 USNO-R
bright star 1: 254.84989 (16:59:23.97) -33.61463 (-33:36:52.7) 11.95 USNO-R
Mean distance difference (CAT_DELTA) for 17 matched entries is 0.947" for 1116441_g344
Mean and std. dev of mag. difference (MAG_DELTA) are 2.244 and 2.090 for 1116441_g344
Found 6 entries without IDs and 6 entries that are acceptable afterglow candidates for 1116441_g344.
Acceptable entries have no ID, XRT distances < 6.25", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
0 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=254.8890 (16:59:33.36) DEC=-33.5970 (-33:35:49.2)
XRT distances are from RA=254.8753 (16:59:30.08) DEC=-33.5977 (-33:35:51.9)
*** WARNING 26 per cent of entries have no IDs.
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1116441_g344 with genie
ra=254.88568 (16:59:32.56) dec=-33.60707 (-33:36:25.5) +/- 0.7" mag=16.00+/-0.14
dist=45.7 REFID=10 major=1.0 minor=0.9 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 37.6 arc sec from the BAT position.
Found 8 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
254.8807 -33.6053 16.4 -1 USNO-B1 18.18 18.73 18.49
254.8818 -33.6108 17.7 -1 USNO-B1 17.20 16.28 16.69
254.8861 -33.6075 2.0 -1 USNO-B1 14.08 13.24 13.61 *
254.8858 -33.6031 14.4 -1 USNO-B1 17.38 16.06 16.65
254.8886 -33.6065 9.1 -1 USNO-B1 16.64 16.09 16.33
254.8869 -33.6118 17.3 -1 USNO-B1 15.37 14.02 14.62
254.8896 -33.6065 11.9 -1 USNO-B1 99.99 17.89 99.99
254.8898 -33.6060 12.8 -1 USNO-B1 16.40 16.52 16.47
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 12 mag
-----------------
Entry 7 in the list of sources is a candidate afterglow for 1116441_g344 with genie
ra=254.86998 (16:59:28.79) dec=-33.59440 (-33:35:39.8) +/- 0.7" mag=11.71+/-0.14
dist=20.1 REFID=1 major=26.6 minor=1.1 flag=19 (neighbor+blended+aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 57.8 arc sec from the BAT position.
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
254.8730 -33.5985 17.3 -1 USNO-B1 19.16 18.14 18.59
254.8724 -33.5980 14.8 -1 USNO-B1 17.38 17.66 17.54
254.8688 -33.5982 14.2 -1 USNO-B1 99.99 15.71 99.99
254.8701 -33.5951 2.5 -1 USNO-B1 99.99 15.14 99.99 *
254.8719 -33.5934 6.7 -1 USNO-B1 16.04 15.15 15.55
254.8668 -33.5966 12.4 -1 USNO-B1 99.99 17.49 99.99
254.8656 -33.5976 17.5 -1 USNO-B1 20.35 20.26 20.30
254.8667 -33.5961 11.4 -1 USNO-B1 19.34 19.08 19.20
254.8727 -33.5922 11.3 -1 USNO-B1 99.99 18.24 99.99
254.8647 -33.5969 18.3 -1 USNO-B1 19.53 19.44 19.48
254.8666 -33.5943 10.3 -1 USNO-B1 18.75 17.77 18.21
254.8705 -33.5915 10.5 -1 USNO-B1 16.72 15.95 16.29
254.8652 -33.5919 16.8 -1 USNO-B1 13.69 13.20 13.42
254.8710 -33.5889 19.9 -1 USNO-B1 18.36 18.52 18.45
254.8650 -33.5919 17.4 -1 USNO-B1 18.75 12.65 15.36
254.8689 -33.5890 19.8 -1 USNO-B1 99.99 19.23 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 12 mag
-----------------
Entry 9 in the list of sources is a candidate afterglow for 1116441_g344 with genie
ra=254.88727 (16:59:32.94) dec=-33.61526 (-33:36:54.9) +/- 0.8" mag=18.06+/-0.16
dist=72.5 REFID=18 major=1.1 minor=0.9 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 65.9 arc sec from the BAT position.
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
254.8821 -33.6122 18.9 -1 USNO-B1 99.99 14.73 99.99
254.8821 -33.6126 18.2 -1 USNO-B1 15.92 15.11 15.47
254.8869 -33.6118 12.6 -1 USNO-B1 15.37 14.02 14.62
254.8887 -33.6123 11.5 -1 USNO-B1 19.27 18.50 18.84
254.8831 -33.6161 13.0 -1 USNO-B1 18.33 18.40 18.37
254.8837 -33.6167 11.9 -1 USNO-B1 99.99 17.64 99.99
254.8875 -33.6157 1.6 -1 USNO-B1 16.02 14.93 15.41 *
254.8846 -33.6174 11.1 -1 USNO-B1 18.27 17.77 17.99
254.8874 -33.6168 5.4 -1 USNO-B1 16.01 13.68 14.71
254.8871 -33.6179 9.5 -1 USNO-B1 16.20 15.35 15.73
254.8892 -33.6176 10.2 -1 USNO-B1 15.19 13.42 14.21
254.8923 -33.6161 15.4 -1 USNO-B1 17.00 17.18 17.10
254.8889 -33.6205 19.4 -1 USNO-B1 17.00 15.43 16.13
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 12 mag
-----------------
Entry 11 in the list of sources is a candidate afterglow for 1116441_g344 with genie
ra=254.87023 (16:59:28.86) dec=-33.61065 (-33:36:38.3) +/- 0.8" mag=18.20+/-0.16
dist=48.9 REFID=12 major=0.9 minor=0.8 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 74.7 arc sec from the BAT position.
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
254.8761 -33.6096 18.0 -1 USNO-B1 14.71 14.65 14.68
254.8736 -33.6103 10.2 -1 USNO-B1 19.60 20.31 19.99
254.8744 -33.6114 12.8 -1 USNO-B1 16.60 16.47 16.53
254.8709 -33.6078 10.4 -1 USNO-B1 17.27 17.13 17.19
254.8698 -33.6070 13.3 -1 USNO-B1 19.03 18.53 18.75
254.8744 -33.6131 15.5 -1 USNO-B1 15.24 13.75 14.41
254.8684 -33.6093 7.4 -1 USNO-B1 19.57 18.32 18.88
254.8679 -33.6116 7.9 -1 USNO-B1 13.66 12.56 13.05
254.8658 -33.6069 19.0 -1 USNO-B1 19.12 19.04 19.07
254.8657 -33.6100 13.7 -1 USNO-B1 19.49 18.32 18.84
254.8692 -33.6158 18.7 -1 USNO-B1 15.89 15.12 15.46
254.8636 -33.6104 20.0 -1 USNO-B1 19.88 20.98 20.49
254.8653 -33.6142 19.6 -1 USNO-B1 18.02 18.16 18.10
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 13 in the list of sources is a candidate afterglow for 1116441_g344 with genie
ra=254.89303 (16:59:34.33) dec=-33.61841 (-33:37:06.3) +/- 0.8" mag=18.28+/-0.16
dist=91.4 REFID=21 major=1.1 minor=0.9 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 78.0 arc sec from the BAT position.
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
254.8875 -33.6157 19.3 -1 USNO-B1 16.02 14.93 15.41
254.8874 -33.6168 17.9 -1 USNO-B1 16.01 13.68 14.71
254.8871 -33.6179 18.0 -1 USNO-B1 16.20 15.35 15.73
254.8892 -33.6176 11.9 -1 USNO-B1 15.19 13.42 14.21
254.8923 -33.6161 8.8 -1 USNO-B1 17.00 17.18 17.10
254.8940 -33.6144 14.8 -1 USNO-B1 18.95 19.92 19.49
254.8945 -33.6149 13.5 -1 USNO-B1 18.99 19.32 19.17
254.8961 -33.6142 17.9 -1 USNO-B1 17.46 20.82 19.33
254.8889 -33.6205 14.3 -1 USNO-B1 17.00 15.43 16.13
254.8927 -33.6190 2.5 -1 USNO-B1 15.50 14.48 14.93 *
254.8972 -33.6150 17.5 -1 USNO-B1 99.99 18.66 99.99
254.8925 -33.6201 6.2 -1 USNO-B1 15.92 14.61 15.19
254.8973 -33.6160 15.3 -1 USNO-B1 17.15 16.70 16.90
254.8943 -33.6217 12.3 -1 USNO-B1 19.24 19.09 19.16
254.8978 -33.6192 14.5 -1 USNO-B1 15.58 17.47 16.63
254.8964 -33.6207 13.1 -1 USNO-B1 19.41 18.73 19.03
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 12 mag
-----------------
Entry 17 in the list of sources is a candidate afterglow for 1116441_g344 with genie
ra=254.87899 (16:59:30.96) dec=-33.61892 (-33:37:08.1) +/- 0.9" mag=19.01+/-0.20
dist=77.0 REFID=23 major=0.9 minor=0.8 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 84.4 arc sec from the BAT position.
This source is near the edge of image (0.877)
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
254.8781 -33.6141 17.5 -1 USNO-B1 18.73 19.54 19.18
254.8754 -33.6158 15.6 -1 USNO-B1 18.47 18.90 18.71
254.8831 -33.6161 15.8 -1 USNO-B1 18.33 18.40 18.37
254.8837 -33.6167 16.2 -1 USNO-B1 99.99 17.64 99.99
254.8787 -33.6174 5.6 -1 USNO-B1 99.99 14.34 99.99
254.8783 -33.6180 3.9 -1 USNO-B1 19.27 14.07 16.38 *
254.8846 -33.6174 17.6 -1 USNO-B1 18.27 17.77 17.99
254.8789 -33.6182 2.7 -1 USNO-B1 15.20 14.24 14.67 *
254.8801 -33.6185 3.6 -1 USNO-B1 99.99 16.50 99.99 *
254.8816 -33.6184 7.9 -1 USNO-B1 16.94 16.74 16.83
254.8760 -33.6213 12.4 -1 USNO-B1 16.88 14.62 15.62
254.8811 -33.6228 15.3 -1 USNO-B1 18.62 18.52 18.56
254.8768 -33.6229 15.6 -1 USNO-B1 18.57 18.66 18.62
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 5.25" or brighter than 12 mag
Found 6 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
254.8772 -33.5991 7.4 -1 USNO-B1 19.12 17.98 18.49
254.8746 -33.5997 7.3 -1 USNO-B1 19.22 19.13 19.17
254.8776 -33.5976 6.8 -1 USNO-B1 22.22 19.41 20.65
254.8730 -33.5985 7.4 -1 USNO-B1 19.16 18.14 18.59
254.8763 -33.5968 4.4 -1 USNO-B1 18.48 18.46 18.47
254.8724 -33.5980 8.9 -1 USNO-B1 17.38 17.66 17.54
The closest star is 4.38" away.
List UVOT sources within 10" of the XRT position:
There are 2.1955453E+05 counts in the bkg source region of 2705.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 81.166 counts/pixel (5-sig UL in 4" is 18.08 mag) for 1116441_g344
There are 46273.266 counts in the xrt source region of 151.00000 pixels.
Rate in xrt region with 8 arcsec radius is 306.445 counts/pixel for 1116441_g344
There are 25244.961 counts in the xrt_bkg source region of 457.00000 pixels.
Rate in xrt_bkg region from 15 to 25 arcsec is 55.241 counts/pixel (5-sig UL in 4" is 18.29 mag) for 1116441_g344
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 18.63, XRT distances < 6.25",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 1116441_679617027_220716d02h30m19s480753usUT_bkg.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(254.8827,-33.5993,45")
fk5;-circle(254.888443626537,-33.6060518486329,6")
fk5;-circle(254.885682451152,-33.6070711459355,6")
fk5;-circle(254.876022121507,-33.6030415848204,6")
fk5;-circle(254.886846899664,-33.6114451911547,6")
fk5;-circle(254.881718561763,-33.6108742882992,6")
fk5;-circle(254.869977091007,-33.5943980294823,6")
fk5;-circle(254.868842562075,-33.5982595897114,6")
Region file: 1116441_679617027_220716d02h30m19s480753usUT_xrt.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(254.87533,-33.59775,8")
Region file: 1116441_679617027_220716d02h30m19s480753usUT_xrt_bkg.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(254.87533,-33.59775,25")
fk5;-circle(254.87533,-33.59775,15")
fk5;-circle(254.876022121507,-33.6030415848204,6")
fk5;-circle(254.869977091007,-33.5943980294823,6")
fk5;-circle(254.868842562075,-33.5982595897114,6")
image paragraph message for exposure 2 of trigger 1116441
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: high density of stars
SRCLIST PROBLEM: high density of stars, srclist filled telemetry buffer
See notes for more details.
------ Start for Possible Stand-alone Circular ----
In response to GRB220715 (Swift/BAT trigger 1116441) at 22:24:42 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 250 seconds with the U filter starting
315 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. Because of the density of catalogued stars, further analysis
is required to report an upper limit for any afterglow in the sub-image. The
8'x8' region for the list of sources generated on-board covers 100% of the XRT
error circle. Because of the density of catalogued stars, further analysis is
required to report an upper limit for any afterglow in the region. No
correction has been made for the expected extinction corresponding to E(B-V) of
0.525.
------- notes for trigger 1116441 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 220716d02h30m23s864164usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1116441
-expid=679617027 -meonly -msg_image
Results from standard processing of UVOT TDRSS data for this trigger should be
available at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/1116441/
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 679617027.2946 or about 2022:196:22:30:22 UT
Found 5000 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 41% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 70 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 23 source(s) in Genie image catalog. Found 6 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 18.63 mag. Found 781 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
103% of the Genie image region. The Genie image is INCOMPLETE with 12557 null
pixels.
Genie image analysis:
Found 219554.5 counts in the large background region of 2705.0 pixels or a rate
of 81.166 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 17.91 mag. for a
4-arcsec aperture.
Found 46273.3 counts in the XRT position region of 151.0 pixels or a rate of
306.446 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is 151.728 +/- 0.886 (1-sigma) cps or
12.72 mag and a range from 12.71 to 12.73 mag. The 3-sigma UL at the XRT
position is 154.385 cps or 12.70 mag. The number of srclist sources filled the
available telemetry. The weakest source detected was 18.28 mag. The closest
srclist source has ra= 254.8647 dec= -33.5913 mag=17.28 sep=39.38". The closest
Genie source has ra= 254.8760 dec= -33.6030 mag=19.28 sep=19.16".
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?
679617027 315 U srclist found no candidates.
679617027 315 U image found no candidates.
List afterglow candidates for other finding charts.
679616814 102 WHITE srclist found no candidates.
679616814 102 WHITE image found no candidates.
------- Tokens for Quick GCN -------