TDRSS lightcurve for Trigger=773900
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sun 24 Sep 17 11:03:18 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 773900, Seg_Num: 0
GRB_RA: 83.555d {+05h 34m 13s} (J2000),
83.823d {+05h 35m 18s} (current),
82.801d {+05h 31m 12s} (1950)
GRB_DEC: +22.433d {+22d 25' 58"} (J2000),
+22.444d {+22d 26' 38"} (current),
+22.400d {+22d 23' 59"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 0 [cnts] Image_Peak=2649 [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: 18020 TJD; 267 DOY; 17/09/24
GRB_TIME: 39580.26 SOD {10:59:40.26} UT
GRB_PHI: -130.17 [deg]
GRB_THETA: 28.43 [deg]
SOLN_STATUS: 0x413
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 15.15 [sigma]
MERIT_PARAMS: +1 +0 +0 +6 +1 +4 +0 +1 +13 +0
SUN_POSTN: 181.46d {+12h 05m 51s} -0.63d {-00d 38' 00"}
SUN_DIST: 97.30 [deg] Sun_angle= 6.5 [hr] (West of Sun)
MOON_POSTN: 230.46d {+15h 21m 51s} -13.16d {-13d 09' 49"}
MOON_DIST: 147.00 [deg]
MOON_ILLUM: 18 [%]
GAL_COORDS: 184.16, -5.62 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 84.04, -0.87 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS: SWIFT-BAT GRB Coordinates.
COMMENTS: This Notice was delayed by more than 60 sec past the end of the trigger integration interval;
COMMENTS: probably due to it occurring during a Malindi downlink session.
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 = 190.26,-6.83 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sun 24 Sep 17 11:16:48 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 773900, Seg_Num: 0
GRB_RA: 83.555d {+05h 34m 13s} (J2000),
83.823d {+05h 35m 18s} (current),
82.801d {+05h 31m 12s} (1950)
GRB_DEC: +22.433d {+22d 25' 58"} (J2000),
+22.444d {+22d 26' 38"} (current),
+22.400d {+22d 23' 59"} (1950)
GRB_DATE: 18020 TJD; 267 DOY; 17/09/24
GRB_TIME: 39580.26 SOD {10:59:40.26} UT
TRIGGER_INDEX: 20000
GRB_PHI: -130.17 [deg]
GRB_THETA: 28.43 [deg]
DELTA_TIME: 0.00 [sec]
TRIGGER_DUR: 64.000 [sec]
SOLN_STATUS: 0x413
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 15.15 [sigma]
LC_URL: sw00773900000msb.lc
GCN template for BAT paragraph
Click here!
At 10:59:40 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 170924 ***A*** (trigger=773900). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 83.555, +22.433 which is
RA(J2000) = 05h 34m 13s
Dec(J2000) = +22d 25' 58"
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 ~882 counts/sec (15-350 keV), at ~6 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 background rate 1: 4592.464 near MET 527943650.240000 s
Estimated background rate 2: 4663.672 near MET 527943755.200000 s
Estimated total fluence: 0.000000 count
Created GTI with 2 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 83.555 22.433 0.083
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: 2017 9 24 11 270.261980 -0.722955
Obj: 2017 9 24 11 22.654423 72.304892
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2017 9 24 11 250.822351 -29.120626
Obj: 2017 9 24 11 284.660201 64.537869
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2017 9 24 11 245.536341 -33.185570
Obj: 2017 9 24 11 282.274228 59.240921
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2017 9 24 11 210.711562 -67.977178
Obj: 2017 9 24 11 253.542565 24.054541
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2017 9 24 11 61.475553 -37.227964
Obj: 2017 9 24 11 266.992507 -42.183134
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2017 9 24 11 106.818725 -23.975036
Obj: 2017 9 24 11 216.894054 -23.390619
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2017 9 24 11 308.928290 47.978434
Obj: 2017 9 24 11 100.433654 30.612297
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2017 9 24 11 267.749869 5.057652
Obj: 2017 9 24 11 164.963018 35.694727
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger773900/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 24 07:17:10 EDT 2017