image overlap message for exposure 3 of trigger 1209401
uvot_overlap.pl vrs. 2010-12-20b fem started at 240117d16h30m42s058257usUT
The observation of trigger 1209401 started 2024-01-17T16:24:34.9
Examining file 1209401_g906_uvot_sky_image.fits
The exposure ID is 727201474
The exposure time is 149.868 (seconds)
The filter is WHITE.
*** Warning -- no aspect solution was applied to the image.
consequently the calculated overlaps are questionable.
*** Warning -- found 16167 null pixels in the image.
The uvot region is centered at (299.3522,34.6627) with a roll angle of 180.4
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 (299.4120,34.6760) with a radius of 3.000 arc min
This is 3.056 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 2.88 sq. arc min or 0.10 of the BAT error circle
Could not find the location of an XRT error circle
image afterglow message for exposure 3 of trigger 1209401
find_uvot_ag.pl vrs. 2023-04-25a fem started at 240117d16h30m43s022365usUT
Observation start time is 2024-01-17T16:24:34.9
Examining file 1209401_g906_uvot_sources_image.fits
The exposure ID is 727201474
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 5 detected source(s) for 1209401_g906
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 299.3565 , 34.6469 with radius 2.00 arc min.
n_usno: 193 n_gsc: 237
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.4771
RA DEC Mag Color
bright star 0: 299.34894 (19:57:23.75) 34.62397 (+34:37:26.3) 11.48 GSC-F
*** WARNING -- no XRT distances are available.
Found 5 entries without IDs and 3 entries that are acceptable afterglow candidates for 1209401_g906.
Acceptable entries have no ID, BAT distance < 210" or XRT distance < 20", 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=299.4120 (19:57:38.88) DEC=34.6760 (+34:40:33.6)
XRT distances are as reported in catalog file.
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1209401_g906 with genie
ra=299.36253 (19:57:27.01) dec=34.65431 (+34:39:15.5) +/- 0.9" mag=19.64+/-0.20
dist=166.0 REFID=2 major=1.3 minor=1.1 flag=0
Found 16 entries in star catalog(s) within 20.0" of the candidate.
printing all entries
(Entries within 12 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
299.3607 34.6491 19.5 -1 USNO-B1 19.38 16.32 17.68
299.3607 34.6496 17.9 -1 USNO-B1 99.99 15.93 99.99
299.3608 34.6501 16.1 -1 USNO-B1 18.63 16.30 17.34
299.3586 34.6572 15.8 -1 USNO-B1 19.77 17.87 18.71
299.3660 34.6546 10.3 -1 USNO-B1 19.18 16.34 17.60 *
299.3666 34.6543 11.9 -1 USNO-B1 99.99 17.32 99.99 *
299.3613 34.6590 17.4 -1 USNO-B1 18.86 16.87 17.75
299.3648 34.6586 16.8 -1 USNO-B1 19.64 17.72 18.57
299.3608 34.6502 15.5 -1 GSC2.3 17.87 19.15 99.99
299.3580 34.6568 16.2 -1 GSC2.3 19.73 99.99 99.99
299.3589 34.6574 15.6 -1 GSC2.3 19.96 99.99 99.99
299.3658 34.6546 9.9 -1 GSC2.3 16.51 19.54 99.99 *
299.3619 34.6573 11.0 -1 GSC2.3 19.75 99.99 99.99 *
299.3657 34.6565 12.2 -1 GSC2.3 19.51 99.99 99.99 *
299.3612 34.6589 17.1 -1 GSC2.3 17.49 19.45 99.99
299.3647 34.6585 16.3 -1 GSC2.3 18.82 20.38 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 2 in the list of sources is a candidate afterglow for 1209401_g906 with genie
ra=299.35897 (19:57:26.15) dec=34.65221 (+34:39:07.9) +/- 0.8" mag=19.30+/-0.18
dist=178.9 REFID=3 major=1.5 minor=1.2 flag=0
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
299.3584 34.6468 19.5 -1 USNO-B1 99.99 18.09 99.99
299.3607 34.6491 12.3 -1 USNO-B1 19.38 16.32 17.68 *
299.3607 34.6496 10.8 -1 USNO-B1 99.99 15.93 99.99 *
299.3608 34.6501 9.4 -1 USNO-B1 18.63 16.30 17.34 *
299.3586 34.6572 18.2 -1 USNO-B1 19.77 17.87 18.71
299.3583 34.6468 19.7 -1 GSC2.3 19.24 99.99 99.99
299.3604 34.6489 12.7 -1 GSC2.3 17.61 99.99 99.99 *
299.3556 34.6513 10.4 -1 GSC2.3 19.32 99.99 99.99 *
299.3608 34.6502 8.9 -1 GSC2.3 17.87 19.15 99.99 *
299.3580 34.6568 16.9 -1 GSC2.3 19.73 99.99 99.99
299.3589 34.6574 18.7 -1 GSC2.3 19.96 99.99 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 3 in the list of sources is a candidate afterglow for 1209401_g906 with genie
ra=299.35600 (19:57:25.44) dec=34.64403 (+34:38:38.5) +/- 0.8" mag=18.96+/-0.16
dist=201.9 REFID=4 major=1.2 minor=1.0 flag=0
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
299.3584 34.6468 12.3 -1 USNO-B1 99.99 18.09 99.99 *
299.3537 34.6487 18.0 -1 USNO-B1 19.77 17.70 18.62
299.3528 34.6488 19.5 -1 USNO-B1 17.97 15.57 16.63
299.3513 34.6463 16.1 -1 USNO-B1 17.01 15.95 16.42
299.3565 34.6414 9.5 -1 USNO-B1 99.99 18.34 99.99 *
299.3534 34.6390 19.8 -1 USNO-B1 16.33 15.27 15.74
299.3583 34.6468 12.0 -1 GSC2.3 19.24 99.99 99.99 *
299.3527 34.6487 19.5 -1 GSC2.3 15.53 18.66 99.99
299.3512 34.6463 16.2 -1 GSC2.3 16.08 17.46 99.99
299.3510 34.6444 15.0 -1 GSC2.3 99.99 99.99 99.99
299.3564 34.6413 9.8 -1 GSC2.3 19.72 99.99 99.99 *
299.3494 34.6432 19.8 -1 GSC2.3 99.99 99.99 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
There are 31720.160 counts in the bkg source region of 1157.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 27.416 counts/pixel (5-sig UL in 4" is 19.55 mag) for 1209401_g906
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.55, BAT distances < 210",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Results are questionable because aspect solution FAILED.
Region file: 1209401_727201474_240117d16h30m43s022365usUT_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(299.3522,34.6627,45")
fk5;-circle(299.362534292151,34.654307677381,6")
fk5;-circle(299.358970542878,34.6522067109951,6")
image paragraph message for exposure 3 of trigger 1209401
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: no aspect solution
SRCLIST PROBLEM: no srclist afterglow info
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 GRB240117 (Swift/BAT trigger 1209401) at 16:09:27 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 874 seconds after the BAT trigger. No credible afterglow candidate has
been found in the initial data products. The 2.7'x2.7' sub-image processing
FAILED because of no aspect solution. Results from the list of sources
generated on-board are not available at this time. No correction has been made
for the large, but uncertain, extinction expected.
------- notes for trigger 1209401 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 240117d16h30m44s170380usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1209401
-expid=727201474 -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/1209401/
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. No XRT position found for Genie
image. BAT position found.
UVOT exposure began at MET 727201474.85102 or about 2024:017:16:24:29 UT
No information found about the number of stars in the star catalog for srclist
region.
THERE IS NO ASPECT SOLUTION for the image data.
Found 5 source(s) in Genie image catalog. Found 5 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 19.55 mag. Found 237 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 41% of the
Genie image region. The Genie image is INCOMPLETE with 16167 null pixels.
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?
727201474 874 WHITE srclist data are not available.
727201474 874 WHITE image found no candidates.
List afterglow candidates for other finding charts.
727200737 137 ? srclist data are not available.
727200737 137 WHITE image found no candidates.
727200896 296 ? srclist data are not available.
727200896 296 U image found no candidates.
------- Tokens for Quick GCN -------