TDRSS lightcurve for Trigger=1120270
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 13 Aug 22 19:23:47 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1120270, Seg_Num: 0
GRB_RA: 81.501d {+05h 26m 00s} (J2000),
81.710d {+05h 26m 50s} (current),
81.039d {+05h 24m 09s} (1950)
GRB_DEC: -32.985d {-32d 59' 06"} (J2000),
-32.967d {-32d 58' 00"} (current),
-33.028d {-33d 01' 39"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 10712 [cnts] Image_Peak=354 [image_cnts]
TRIGGER_DUR: 4.096 [sec]
TRIGGER_INDEX: 298 E_range: 25-100 keV
BKG_INTEN: 89483 [cnts]
BKG_TIME: 69730.32 SOD {19:22:10.32} UT
BKG_DUR: 40 [sec]
GRB_DATE: 19804 TJD; 225 DOY; 22/08/13
GRB_TIME: 69783.57 SOD {19:23:03.57} UT
GRB_PHI: -65.17 [deg]
GRB_THETA: 11.23 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 14.69 [sigma]
IMAGE_SIGNIF: 9.31 [sigma]
MERIT_PARAMS: +1 +0 +0 +2 +2 +0 +0 +0 -24 +0
SUN_POSTN: 143.42d {+09h 33m 40s} +14.49d {+14d 29' 09"}
SUN_DIST: 75.59 [deg] Sun_angle= 4.1 [hr] (West of Sun)
MOON_POSTN: 347.84d {+23h 11m 23s} -10.02d {-10d 01' 13"}
MOON_DIST: 87.77 [deg]
MOON_ILLUM: 96 [%]
GAL_COORDS: 236.77,-31.34 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 77.18,-56.05 [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 = 180.17,5.18 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 13 Aug 22 19:39:15 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1120270, Seg_Num: 0
GRB_RA: 81.501d {+05h 26m 00s} (J2000),
81.710d {+05h 26m 50s} (current),
81.039d {+05h 24m 09s} (1950)
GRB_DEC: -32.985d {-32d 59' 06"} (J2000),
-32.967d {-32d 58' 00"} (current),
-33.028d {-33d 01' 39"} (1950)
GRB_DATE: 19804 TJD; 225 DOY; 22/08/13
GRB_TIME: 69783.57 SOD {19:23:03.57} UT
TRIGGER_INDEX: 298
GRB_PHI: -65.17 [deg]
GRB_THETA: 11.23 [deg]
DELTA_TIME: -44.00 [sec]
TRIGGER_DUR: 4.096 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 14.69 [sigma]
IMAGE_SIGNIF: 9.31 [sigma]
LC_URL: sw01120270000msb.lc
GCN template for BAT paragraph
Click here!
At 19:23:03 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 220813 ***A*** (trigger=1120270). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 81.501, -32.985 which is
RA(J2000) = 05h 26m 00s
Dec(J2000) = -32d 59' 06"
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 ~1382 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
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: 17.856 s +/- 1.14576 s
Estimated T50 duration: 8.192 s +/- 0.4098 s
Estimated Peak Interval: MET 682111415.35999990 +/- 0.500000 s
Estimated background rate 1: 4484.861 near MET 682111396.000000 s
Estimated background rate 2: 4501.747 near MET 682111510.272000 s
Estimated total duration: 18.624 s (for data selection)
(from MET 682111403.200000 to MET 682111421.824000)
Estimated total fluence: 7901.399012 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 81.501 -32.985 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 81.501 -32.985
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: 2022 8 13 19 50.799799 56.219306
Obj: 2022 8 13 19 62.297237 -18.755123
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2022 8 13 19 336.288682 71.448876
Obj: 2022 8 13 19 43.295139 7.590127
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2022 8 13 19 323.617680 67.464500
Obj: 2022 8 13 19 39.330429 9.671406
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2022 8 13 19 267.457243 40.023032
Obj: 2022 8 13 19 9.935406 36.389817
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2022 8 13 19 266.184144 -22.410081
Obj: 2022 8 13 19 285.043162 51.345389
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2022 8 13 19 237.265292 -17.987278
Obj: 2022 8 13 19 311.872508 0.626215
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2022 8 13 19 100.689452 10.817982
Obj: 2022 8 13 19 73.129227 -61.586477
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2022 8 13 19 140.567790 35.407124
Obj: 2022 8 13 19 59.182112 12.921046
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1120270/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 Aug 13 15:40:03 EDT 2022