TDRSS lightcurve for Trigger=1081113
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Mon 25 Oct 21 05:11:35 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1081113, Seg_Num: 0
GRB_RA: 162.377d {+10h 49m 30s} (J2000),
162.679d {+10h 50m 43s} (current),
161.683d {+10h 46m 44s} (1950)
GRB_DEC: +31.557d {+31d 33' 26"} (J2000),
+31.441d {+31d 26' 29"} (current),
+31.822d {+31d 49' 20"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 0 [cnts] Image_Peak=1346 [image_cnts]
TRIGGER_DUR: 64.000 [sec]
TRIGGER_INDEX: 20000 E_range: 15-50 keV
BKG_INTEN: 0 [cnts]
BKG_TIME: 0.00 SOD {00:00:00.00} UT
BKG_DUR: 0 [sec]
GRB_DATE: 19512 TJD; 298 DOY; 21/10/25
GRB_TIME: 18620.03 SOD {05:10:20.03} UT
GRB_PHI: -154.23 [deg]
GRB_THETA: 9.75 [deg]
SOLN_STATUS: 0x13
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 8.05 [sigma]
MERIT_PARAMS: +1 +0 +0 +6 +1 -2 +0 +0 -45 +0
SUN_POSTN: 209.84d {+13h 59m 21s} -12.17d {-12d 10' 15"}
SUN_DIST: 62.80 [deg] Sun_angle= 3.1 [hr] (West of Sun)
MOON_POSTN: 81.46d {+05h 25m 50s} +25.10d {+25d 05' 60"}
MOON_DIST: 70.17 [deg]
MOON_ILLUM: 82 [%]
GAL_COORDS: 196.08, 63.15 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 151.29, 22.18 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS: SWIFT-BAT GRB Coordinates.
COMMENTS: This is an image trigger. (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)
COMMENTS: A point_source was found.
COMMENTS: This does not match any source in the on-board catalog.
COMMENTS: This does not match any source in the ground catalog.
COMMENTS: This is a GRB.
COMMENTS: This trigger occurred at longitude,latitude = 87.85,13.59 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Mon 25 Oct 21 05:29:43 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1081113, Seg_Num: 0
GRB_RA: 162.377d {+10h 49m 30s} (J2000),
162.679d {+10h 50m 43s} (current),
161.683d {+10h 46m 44s} (1950)
GRB_DEC: +31.557d {+31d 33' 26"} (J2000),
+31.441d {+31d 26' 29"} (current),
+31.822d {+31d 49' 20"} (1950)
GRB_DATE: 19512 TJD; 298 DOY; 21/10/25
GRB_TIME: 18620.03 SOD {05:10:20.03} UT
TRIGGER_INDEX: 20000
GRB_PHI: -154.23 [deg]
GRB_THETA: 9.75 [deg]
DELTA_TIME: 0.00 [sec]
TRIGGER_DUR: 64.000 [sec]
SOLN_STATUS: 0x13
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 8.05 [sigma]
LC_URL: sw01081113000msb.lc
GCN template for BAT paragraph
Click here!
At 05:10:20 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 211025 ***A*** (trigger=1081113). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 162.377, +31.557 which is
RA(J2000) = 10h 49m 30s
Dec(J2000) = +31d 33' 26"
with an uncertainty of 3 arcmin (radius, 90% containment, including
systematic uncertainty). The BAT light curve showed a [**double-peaked**]
structure with a duration of about TTT sec. The peak count rate
was ~1062 counts/sec (15-350 keV), at ~2 sec after the trigger.
Test version of draft template
Initial TDRSS lightcurve and spacecraft attitude plot
TDRSS lightcurve from T0-30 to T0+50 (zoom in)
TDRSS light curve from T0-1 to T0+2 (More zoom in)
1.6s binned TDRSS light curve
Tilan's background subtracted TDRSS light curves
Extended TDRSS light curve and spacecraft attitude plot(s)
Extended TDRSS lc No.1
Extended TDRSS lc No.2
Extended TDRSS lc No.3
Extended TDRSS lc No.4
TDRSS extended lightcurve from T0-1 to T0+2
T50 and T90 calculation
******************************************
battblocks v1.18
------------------------------------------
Input Data: bat_raw_lc.fits
Output GTI: bb.gti
Events to Skip: 128 Changepoint log(prob) Prior: 6.000000
Internal Tick: 1.000000e-04 s
Lookback time: 0 s
Bkg. Subtract?: yes (for fluence/T50/T90 calculations)
------------------------------------------
Estimated T90 duration: 82.944 s +/- 2.98545 s
Estimated T50 duration: 49.152 s +/- 4.096 s
Estimated Peak Interval: MET 656831488.51199996 +/- 0.500000 s
Estimated background rate 1: 4770.291 near MET 656831451.648000 s
Estimated background rate 2: 4708.659 near MET 656831603.200000 s
Estimated total duration: 93.184 s (for data selection)
(from MET 656831479.296000 to MET 656831572.480000)
Estimated total fluence: 9046.143924 count
Created GTI with 4 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 162.377 31.557 0.083
No match
Search for this GRB position to the source locations in BAT transient monitor (search radius within 12 arcmin)
python compare_catalog.py 162.377 31.557
No match
Link to SIMBAD
Click here for the SIMBAD search!
Frank's UVOT result
Click here!
Frank's UVOT Blinking images
Click here!
Elevation angle of GRB/Sun at the ground telescope locations
GSFC, Greenbelt, Maryland
TimeUT Azimuth Elevation
Sun: 2021 10 25 5 183.466075 -63.151114
Obj: 2021 10 25 5 220.191335 -6.283065
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2021 10 25 5 115.877102 -54.421533
Obj: 2021 10 25 5 193.913083 -25.377676
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2021 10 25 5 111.991754 -49.137606
Obj: 2021 10 25 5 188.233041 -24.712108
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2021 10 25 5 82.600818 -16.217388
Obj: 2021 10 25 5 150.228263 -31.312778
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2021 10 25 5 102.686945 42.297907
Obj: 2021 10 25 5 115.710825 -19.345960
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2021 10 25 5 37.802738 34.903984
Obj: 2021 10 25 5 111.621822 26.071589
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2021 10 25 5 266.914008 -31.506288
Obj: 2021 10 25 5 247.766135 28.589641
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2021 10 25 5 349.239713 -46.904426
Obj: 2021 10 25 5 253.896102 -43.611363
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1081113/tdrss_ql/
bat_raw_lc.fits : TDRSS FITS light curve from GCN
gcn_position.txt : GCN BAT position notice
ratelc_tdrss.qdp : QDP file of the TDRSS light curve
tdrss_lc.gif : GIF TDRSS light curve
sc_att.qdp : QDP file of the spacecraft attitude
sc_att.gif : GIF spacecraft attitude
bb.gti : Bayesian block GTI file (battblocks)
dur.gti : Duration GTI file (battblocks)
battblocks.log : Output log of battblocks
Plot creation:
Mon Oct 25 01:30:04 EDT 2021