TDRSS lightcurve for Trigger=1072990
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sun 12 Sep 21 11:01:24 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1072990, Seg_Num: 0
GRB_RA: 129.769d {+08h 39m 04s} (J2000),
130.529d {+08h 42m 07s} (current),
127.983d {+08h 31m 56s} (1950)
GRB_DEC: +79.194d {+79d 11' 38"} (J2000),
+79.116d {+79d 06' 58"} (current),
+79.369d {+79d 22' 08"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 1652 [cnts] Image_Peak=113 [image_cnts]
TRIGGER_DUR: 0.512 [sec]
TRIGGER_INDEX: 124 E_range: 25-100 keV
BKG_INTEN: 17278 [cnts]
BKG_TIME: 39660.28 SOD {11:01:00.28} UT
BKG_DUR: 8 [sec]
GRB_DATE: 19469 TJD; 255 DOY; 21/09/12
GRB_TIME: 39671.54 SOD {11:01:11.54} UT
GRB_PHI: -153.63 [deg]
GRB_THETA: 7.63 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 15.84 [sigma]
IMAGE_SIGNIF: 7.29 [sigma]
MERIT_PARAMS: +1 +0 +0 -1 +2 -3 +0 +0 -20 +0
SUN_POSTN: 170.73d {+11h 22m 54s} +4.00d {+03d 59' 45"}
SUN_DIST: 77.74 [deg] Sun_angle= 2.7 [hr] (West of Sun)
MOON_POSTN: 239.43d {+15h 57m 42s} -20.10d {-20d 05' 50"}
MOON_DIST: 113.26 [deg]
MOON_ILLUM: 34 [%]
GAL_COORDS: 134.25, 31.56 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 102.92, 57.55 [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 = 318.62,6.07 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sun 12 Sep 21 11:17:58 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1072990, Seg_Num: 0
GRB_RA: 129.769d {+08h 39m 04s} (J2000),
130.529d {+08h 42m 07s} (current),
127.983d {+08h 31m 56s} (1950)
GRB_DEC: +79.194d {+79d 11' 38"} (J2000),
+79.116d {+79d 06' 58"} (current),
+79.369d {+79d 22' 08"} (1950)
GRB_DATE: 19469 TJD; 255 DOY; 21/09/12
GRB_TIME: 39671.54 SOD {11:01:11.54} UT
TRIGGER_INDEX: 124
GRB_PHI: -153.63 [deg]
GRB_THETA: 7.63 [deg]
DELTA_TIME: -5.00 [sec]
TRIGGER_DUR: 0.512 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 15.84 [sigma]
IMAGE_SIGNIF: 7.29 [sigma]
LC_URL: sw01072990000msb.lc
GCN template for BAT paragraph
Click here!
At 11:01:11 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 210912 ***A*** (trigger=1072990). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 129.769, +79.194 which is
RA(J2000) = 08h 39m 04s
Dec(J2000) = +79d 11' 38"
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 ~2816 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: 37.312 s +/- 7.616 s
Estimated T50 duration: 9.408 s +/- 0.993547 s
Estimated Peak Interval: MET 653137299.83999991 +/- 0.500000 s
Estimated background rate 1: 3890.000 near MET 653137278.400000 s
Estimated background rate 2: 3829.750 near MET 653137419.584000 s
Estimated total duration: 72.448 s (for data selection)
(from MET 653137281.600000 to MET 653137354.048000)
Estimated total fluence: 15726.520849 count
Created GTI with 10 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 129.769 79.194 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 129.769 79.194
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 9 12 11 265.994280 1.365902
Obj: 2021 9 12 11 192.065714 45.203215
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2021 9 12 11 245.930983 -27.131232
Obj: 2021 9 12 11 192.812420 31.919037
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2021 9 12 11 240.630510 -30.889488
Obj: 2021 9 12 11 192.926844 32.419332
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2021 9 12 11 203.440663 -64.243947
Obj: 2021 9 12 11 188.549415 12.643357
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2021 9 12 11 66.880457 -39.366726
Obj: 2021 9 12 11 178.657599 -42.144325
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2021 9 12 11 110.020629 -20.264330
Obj: 2021 9 12 11 175.571332 24.190185
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2021 9 12 11 302.735851 50.481520
Obj: 2021 9 12 11 178.103626 39.495577
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2021 9 12 11 264.293529 1.790367
Obj: 2021 9 12 11 188.352653 -22.455480
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1072990/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:
Sun Sep 12 07:19:04 EDT 2021