TDRSS lightcurve for Trigger=1080859
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 23 Oct 21 21:06:09 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1080859, Seg_Num: 0
GRB_RA: 170.302d {+11h 21m 12s} (J2000),
170.598d {+11h 22m 23s} (current),
169.622d {+11h 18m 29s} (1950)
GRB_DEC: +39.137d {+39d 08' 14"} (J2000),
+39.017d {+39d 01' 02"} (current),
+39.411d {+39d 24' 40"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 2950 [cnts] Image_Peak=189 [image_cnts]
TRIGGER_DUR: 1.024 [sec]
TRIGGER_INDEX: 137 E_range: 15-50 keV
BKG_INTEN: 18049 [cnts]
BKG_TIME: 75940.04 SOD {21:05:40.04} UT
BKG_DUR: 8 [sec]
GRB_DATE: 19510 TJD; 296 DOY; 21/10/23
GRB_TIME: 75952.14 SOD {21:05:52.14} UT
GRB_PHI: -162.51 [deg]
GRB_THETA: 41.90 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 12.44 [sigma]
IMAGE_SIGNIF: 9.67 [sigma]
MERIT_PARAMS: +1 +0 +0 +0 +1 +0 +0 +0 -46 +0
SUN_POSTN: 208.56d {+13h 54m 15s} -11.71d {-11d 42' 30"}
SUN_DIST: 61.83 [deg] Sun_angle= 2.5 [hr] (West of Sun)
MOON_POSTN: 64.57d {+04h 18m 16s} +21.88d {+21d 53' 03"}
MOON_DIST: 87.96 [deg]
MOON_ILLUM: 91 [%]
GAL_COORDS: 174.62, 67.71 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 154.12, 31.81 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS: SWIFT-BAT GRB Coordinates.
COMMENTS: This is a rate trigger.
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 = 161.35,-6.74 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 23 Oct 21 21:22:48 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1080859, Seg_Num: 0
GRB_RA: 170.302d {+11h 21m 12s} (J2000),
170.598d {+11h 22m 23s} (current),
169.622d {+11h 18m 29s} (1950)
GRB_DEC: +39.137d {+39d 08' 14"} (J2000),
+39.017d {+39d 01' 02"} (current),
+39.411d {+39d 24' 40"} (1950)
GRB_DATE: 19510 TJD; 296 DOY; 21/10/23
GRB_TIME: 75952.14 SOD {21:05:52.14} UT
TRIGGER_INDEX: 137
GRB_PHI: -162.51 [deg]
GRB_THETA: 41.90 [deg]
DELTA_TIME: 70.00 [sec]
TRIGGER_DUR: 1.024 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 12.44 [sigma]
IMAGE_SIGNIF: 9.67 [sigma]
LC_URL: sw01080859000msb.lc
GCN template for BAT paragraph
Click here!
At 21:05:52 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 211023 ***A*** (trigger=1080859). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 170.302, +39.137 which is
RA(J2000) = 11h 21m 12s
Dec(J2000) = +39d 08' 14"
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 ~1757 counts/sec (15-350 keV), at ~0 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: 1.792 s +/- 0.256 s
Estimated T50 duration: 0.64 s +/- 0.128 s
Estimated Peak Interval: MET 656715980.54399991 +/- 0.500000 s
Estimated background rate 1: 3895.848 near MET 656715968.384000 s
Estimated background rate 2: 3843.566 near MET 656716074.304000 s
Estimated total duration: 1.92 s (for data selection)
(from MET 656715979.968000 to MET 656715981.888000)
Estimated total fluence: 1340.049091 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 170.302 39.137 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 170.302 39.137
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 23 21 62.340905 13.532200
Obj: 2021 10 23 21 126.651240 17.202453
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2021 10 23 21 35.775845 39.170749
Obj: 2021 10 23 21 117.404930 37.172155
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2021 10 23 21 28.248598 40.435414
Obj: 2021 10 23 21 114.790188 42.437315
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2021 10 23 21 330.597674 54.254108
Obj: 2021 10 23 21 141.250770 63.648578
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2021 10 23 21 271.258078 20.894885
Obj: 2021 10 23 21 206.836492 12.678274
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2021 10 23 21 280.199348 -5.896977
Obj: 2021 10 23 21 248.034438 49.253930
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2021 10 23 21 94.171105 -32.316445
Obj: 2021 10 23 21 162.454442 -19.365539
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2021 10 23 21 90.908498 25.211818
Obj: 2021 10 23 21 120.375571 -29.787378
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1080859/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:
Sat Oct 23 17:24:24 EDT 2021