image overlap message for exposure 1 of trigger 886496
uvot_overlap.pl vrs. 2010-12-20b fem started at 190129d10h45m51s118400usUT
The observation of trigger 886496 started 2019-01-29T10:25:27.3
Examining file 886496_g221_uvot_sky_image.fits
The exposure ID is 570450327
The exposure time is 149.857 (seconds)
The filter is WHITE.
The uvot region is centered at (207.0597,-63.2736) with a roll angle of 111.0
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 (207.0260,-63.2680) with a radius of 3.000 arc min
This is 0.969 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 (207.0550,-63.2715) with a radius of 0.090 arc min
This is 0.177 arc min from the center of the uvot region
The area of the XRT error circle is 0.025 sq. arc min
The UVOT/XRT overlap is 0.025 sq. arc min or 1.00 of the XRT error circle
image afterglow message for exposure 1 of trigger 886496
find_uvot_ag.pl vrs. 2017-02-17 fem started at 190129d10h45m52s222097usUT
Observation start time is 2019-01-29T10:25:27.3
Examining file 886496_g221_uvot_catalog_image.fits
The exposure ID is 570450327
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 57 detected source(s) for 886496_g221
Aspect correction adds 0.00072 degrees (0.173 sec of time = 1.17 arc sec) to RA
Aspect correction adds -0.00108 degrees (-3.89 arcsec) to Dec
Total aspect correction is 4.06 arcsec
Star catalogs centered at 207.0614 , -63.2764 with radius 2.73 arc min.
n_usno: 619 n_gsc: 0
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.74366
RA DEC Mag Color
bright star 0: 207.10769 (13:48:25.84) -63.26928 (-63:16:09.4) 11.74 USNO-V
Mean distance difference (CAT_DELTA) for 56 matched entries is 0.643" for 886496_g221
Mean and std. dev of mag. difference (MAG_DELTA) are 1.690 and 0.644 for 886496_g221
Found 6 entries without IDs and 5 entries that are acceptable afterglow candidates for 886496_g221.
Acceptable entries have no ID, XRT distances < 13.5", 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=207.0260 (13:48:06.24) DEC=-63.2680 (-63:16:04.8)
XRT distances are from RA=207.0550 (13:48:13.20) DEC=-63.2715 (-63:16:17.4)
-----------------
Entry 0 in the list of sources is a candidate afterglow for 886496_g221 with genie
ra=207.05352 (13:48:12.84) dec=-63.27462 (-63:16:28.6) +/- 0.6" mag=16.56+/-0.14
dist=11.5 REFID=32 major=1.1 minor=1.0 flag=0
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
207.0601 -63.2753 11.0 -1 USNO-B1 19.00 20.94 20.08
207.0586 -63.2775 13.2 -1 USNO-B1 17.46 16.49 16.92
207.0521 -63.2788 15.2 -1 USNO-B1 18.96 17.16 17.96
207.0526 -63.2704 15.1 -1 USNO-B1 18.38 18.28 18.32
207.0434 -63.2759 17.1 -1 USNO-B1 16.58 15.38 15.92
207.0426 -63.2762 18.5 -1 USNO-B1 99.99 16.62 99.99
207.0458 -63.2713 17.3 -1 USNO-B1 20.21 18.51 19.26
207.0445 -63.2719 17.5 -1 USNO-B1 99.99 18.24 99.99
uvot_check_outside found 14 of 14 good pixels
##### This source remains a candidate #####
It has no entries within 3.5" or brighter than 12 mag
-----------------
Entry 9 in the list of sources is a candidate afterglow for 886496_g221 with genie
ra=207.04234 (13:48:10.16) dec=-63.26414 (-63:15:50.9) +/- 0.8" mag=20.15+/-0.22
dist=33.5 REFID=16 major=1.0 minor=0.9 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 29.9 arc sec from the BAT position.
Found 12 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
207.0492 -63.2682 18.4 -1 USNO-B1 21.09 19.09 19.98
207.0531 -63.2648 17.6 -1 USNO-B1 20.41 17.71 18.91
207.0487 -63.2629 11.2 -1 USNO-B1 19.29 16.00 17.46
207.0420 -63.2638 1.3 -1 USNO-B1 19.70 16.81 18.09 *
207.0507 -63.2611 17.4 -1 USNO-B1 15.86 18.32 17.23
207.0405 -63.2626 6.4 -1 USNO-B1 99.99 16.33 99.99
207.0394 -63.2623 8.2 -1 USNO-B1 17.96 17.35 17.62
207.0358 -63.2622 12.6 -1 USNO-B1 20.62 18.17 19.26
207.0392 -63.2610 12.4 -1 USNO-B1 18.37 18.75 18.58
207.0333 -63.2618 16.9 -1 USNO-B1 20.13 16.72 18.23
207.0328 -63.2618 17.6 -1 USNO-B1 18.28 16.77 17.44
207.0404 -63.2591 18.4 -1 USNO-B1 14.77 14.21 14.46
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 10 in the list of sources is a candidate afterglow for 886496_g221 with genie
ra=207.03579 (13:48:08.59) dec=-63.27724 (-63:16:38.1) +/- 0.7" mag=19.54+/-0.18
dist=37.4 REFID=38 major=0.9 minor=0.8 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 36.9 arc sec from the BAT position.
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
207.0434 -63.2759 13.2 -1 USNO-B1 16.58 15.38 15.92
207.0426 -63.2762 11.7 -1 USNO-B1 99.99 16.62 99.99
207.0387 -63.2809 14.1 -1 USNO-B1 15.27 13.70 14.40
207.0349 -63.2771 1.5 -1 USNO-B1 19.23 17.21 18.11 *
207.0340 -63.2797 9.4 -1 USNO-B1 99.99 18.59 99.99
207.0330 -63.2770 4.6 -1 USNO-B1 99.99 17.27 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 44 in the list of sources is a candidate afterglow for 886496_g221 with genie
ra=207.09893 (13:48:23.74) dec=-63.27863 (-63:16:43.1) +/- 0.7" mag=19.58+/-0.18
dist=75.6 REFID=42 major=1.3 minor=1.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 124.1 arc sec from the BAT position.
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
207.0927 -63.2801 11.4 -1 USNO-B1 99.99 16.95 99.99
207.0921 -63.2818 16.0 -1 USNO-B1 19.10 19.06 19.08
207.0978 -63.2739 17.1 -1 USNO-B1 16.24 13.88 14.93
207.0994 -63.2783 1.4 -1 USNO-B1 18.44 16.32 17.26 *
207.1041 -63.2796 9.1 -1 USNO-B1 20.13 15.52 17.57
207.1049 -63.2791 9.9 -1 USNO-B1 17.74 15.31 16.39
207.1042 -63.2822 15.2 -1 USNO-B1 18.20 16.39 17.19
207.1056 -63.2822 16.9 -1 USNO-B1 18.23 16.28 17.15
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 59 in the list of sources is a candidate afterglow for 886496_g221 with genie
ra=207.06081 (13:48:14.59) dec=-63.30087 (-63:18:03.1) +/- 0.6" mag=16.99+/-0.14
dist=106.1 REFID=1 major=0.8 minor=0.5 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 131.0 arc sec from the BAT position.
This source is near the edge of image (0.948)
Found 10 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
207.0608 -63.2963 16.6 -1 USNO-B1 20.92 17.70 19.13
207.0666 -63.2968 17.4 -1 USNO-B1 99.99 18.84 99.99
207.0700 -63.2986 17.1 -1 USNO-B1 19.53 16.54 17.86
207.0561 -63.2989 10.4 -1 USNO-B1 20.61 20.94 20.79
207.0575 -63.3000 6.2 -1 USNO-B1 18.74 19.20 19.00
207.0619 -63.3012 2.0 -1 USNO-B1 15.83 14.58 15.13 *
207.0656 -63.3015 8.1 -1 USNO-B1 16.93 15.35 16.05
207.0663 -63.3015 9.1 -1 USNO-B1 15.92 15.34 15.60
207.0616 -63.3026 6.5 -1 USNO-B1 19.92 17.37 18.50
207.0504 -63.3031 18.8 -1 USNO-B1 19.41 17.14 18.15
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 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
207.0526 -63.2704 5.5 -1 USNO-B1 18.38 18.28 18.32
The closest star is 5.50" away.
List UVOT sources within 10" of the XRT position:
There are 72248.336 counts in the bkg source region of 4543.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 15.903 counts/pixel (5-sig UL in 4" is 19.85 mag) for 886496_g221
There are 3646.8601 counts in the src source region of 50.000000 pixels.
Rate in src region with 4 arcsec radius is 72.937 counts/pixel for 886496_g221
There are 14115.037 counts in the cand_src_bkg source region of 903.00000 pixels.
Rate in cand_src_bkg region from 15 to 25 arcsec is 15.631 counts/pixel (5-sig UL in 4" is 19.86 mag) for 886496_g221
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 20.40, XRT distances < 13.5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 1 good candidate(s) found.
Region file: 886496_570450327_190129d10h45m52s222097usUT_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(207.0597,-63.2736,45")
fk5;-circle(207.053519220852,-63.2746168681147,6")
fk5;-circle(207.066200261473,-63.2744939485469,6")
fk5;-circle(207.058538237353,-63.2776110253954,6")
fk5;-circle(207.0431529545,-63.2754332551675,6")
fk5;-circle(207.052104913266,-63.2786269893802,6")
fk5;-circle(207.071808391547,-63.2698035414221,6")
fk5;-circle(207.072057973591,-63.2752249295903,6")
fk5;-circle(207.051658921271,-63.2809239153637,6")
fk5;-circle(207.042337893205,-63.2641440563254,6")
fk5;-circle(207.035785134273,-63.2772431900809,6")
fk5;-circle(207.068817243056,-63.2807013184012,6")
fk5;-circle(207.074858482399,-63.2655441455819,6")
fk5;-circle(207.076075008634,-63.2777839049866,6")
fk5;-circle(207.038679662914,-63.2808539046478,6")
fk5;-circle(207.066317072699,-63.2613540575697,6")
fk5;-circle(207.082008090152,-63.2756550263679,6")
fk5;-circle(207.082214092299,-63.2677484018272,6")
fk5;-circle(207.081534575138,-63.2648839159085,6")
fk5;-circle(207.087684205351,-63.2723230164208,6")
fk5;-circle(207.07443069038,-63.2856434173384,6")
Region file: 886496_570450327_190129d10h45m52s222097usUT_cand_src.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(207.053519220852,-63.2746168681147,4")
Region file: 886496_570450327_190129d10h45m52s222097usUT_cand_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(207.053519220852,-63.2746168681147,25")
fk5;-circle(207.053519220852,-63.2746168681147,15")
fk5;-circle(207.066200261473,-63.2744939485469,6")
fk5;-circle(207.058538237353,-63.2776110253954,6")
fk5;-circle(207.0431529545,-63.2754332551675,6")
fk5;-circle(207.052104913266,-63.2786269893802,6")
fk5;-circle(207.072057973591,-63.2752249295903,6")
fk5;-circle(207.051658921271,-63.2809239153637,6")
fk5;-circle(207.035785134273,-63.2772431900809,6")
image paragraph message for exposure 1 of trigger 886496
WARNING -- because of the LARGE EXTINCTION, results should be used cautiously.
------ Start for Possible Stand-alone Circular ----
In response to GRB190129 (Swift/BAT trigger 886496) at 10:21:45 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 199 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 13:48:12.84 = 207.05352
DEC(J2000) = -63:16:28.6 = -63.27462
with a 90%-confidence error radius of about 0.61 arc sec. This position is 11.5
arc sec. from the center of the XRT error circle. The estimated magnitude is
16.56 with a 1-sigma error of about 0.14. No correction has been made for the
large, but uncertain, extinction expected.
------- notes for trigger 886496 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 190129d10h45m53s963185usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=886496
-expid=570450327 -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/886496/
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. XRT position found for srclist. XRT position found for Genie
image. BAT position found.
UVOT exposure began at MET 570450327.34912 or about 2019:029:10:25:22 UT
Found 3033 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 60% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 29 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 57 source(s) in Genie image catalog. Found 6 Genie image source(s)
without IDs. There are 1 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 20.40 mag. Found 615 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
57% of the Genie image region.
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?
570450327 199 WHITE 207.05377 -63.27450 17.44/19.2 11.0 srclist Yes
570450327 199 WHITE 207.05352 -63.27462 16.56/20.4 11.5 image Yes
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: -63.27462
GRB_ERROR: 0.61
GRB_RA: 207.05352
IMAGE_START_TIME: 10:25:22
MAGNITUDE: 16.56
MAG_ERROR: 0.14
MESSAGE_TYPE: ACK
SOURCE: XRT