TDRSS lightcurve for Trigger=772006
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Tue 12 Sep 17 01:34:58 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 772006, Seg_Num: 0
GRB_RA: 167.372d {+11h 09m 29s} (J2000),
167.569d {+11h 10m 17s} (current),
166.818d {+11h 07m 16s} (1950)
GRB_DEC: -54.360d {-54d 21' 34"} (J2000),
-54.456d {-54d 27' 20"} (current),
-54.088d {-54d 05' 17"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 17620 [cnts] Image_Peak=440 [image_cnts]
TRIGGER_DUR: 4.096 [sec]
TRIGGER_INDEX: 291 E_range: 15-50 keV
BKG_INTEN: 155521 [cnts]
BKG_TIME: 5596.32 SOD {01:33:16.32} UT
BKG_DUR: 40 [sec]
GRB_DATE: 18008 TJD; 255 DOY; 17/09/12
GRB_TIME: 5656.93 SOD {01:34:16.93} UT
GRB_PHI: -139.72 [deg]
GRB_THETA: 40.64 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 13.74 [sigma]
IMAGE_SIGNIF: 10.13 [sigma]
MERIT_PARAMS: +1 +0 +0 +2 +1 +0 +0 +1 -52 +0
SUN_POSTN: 170.34d {+11h 21m 22s} +4.16d {+04d 09' 31"}
SUN_DIST: 58.66 [deg] Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN: 62.58d {+04h 10m 19s} +15.79d {+15d 47' 13"}
MOON_DIST: 111.47 [deg]
MOON_ILLUM: 64 [%]
GAL_COORDS: 288.34, 5.60 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 199.95,-52.78 [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 = 142.18,-20.45 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Tue 12 Sep 17 01:55:08 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 772006, Seg_Num: 0
GRB_RA: 167.372d {+11h 09m 29s} (J2000),
167.569d {+11h 10m 17s} (current),
166.818d {+11h 07m 16s} (1950)
GRB_DEC: -54.360d {-54d 21' 34"} (J2000),
-54.456d {-54d 27' 20"} (current),
-54.088d {-54d 05' 17"} (1950)
GRB_DATE: 18008 TJD; 255 DOY; 17/09/12
GRB_TIME: 5656.93 SOD {01:34:16.93} UT
TRIGGER_INDEX: 291
GRB_PHI: -139.72 [deg]
GRB_THETA: 40.64 [deg]
DELTA_TIME: 19.00 [sec]
TRIGGER_DUR: 4.096 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 13.74 [sigma]
IMAGE_SIGNIF: 10.13 [sigma]
LC_URL: sw00772006000msb.lc
GCN template for BAT paragraph
Click here!
At 01:34:16 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 170912 ***A*** (trigger=772006). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 167.372, -54.360 which is
RA(J2000) = 11h 09m 29s
Dec(J2000) = -54d 21' 34"
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 ~2449 counts/sec (15-350 keV), at ~1 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: 50.56 s +/- 2.89772 s
Estimated T50 duration: 33.28 s +/- 0.729712 s
Estimated Peak Interval: MET 526872925.50399995 +/- 0.500000 s
Estimated background rate 1: 6331.965 near MET 526872864.128000 s
Estimated background rate 2: 5287.332 near MET 526873015.616000 s
Estimated total duration: 93.056 s (for data selection)
(from MET 526872875.456000 to MET 526872968.512000)
Estimated total fluence: 18271.132156 count
Created GTI with 8 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 167.372 -54.360 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 12 1 112.124948 -18.966268
Obj: 2017 9 12 1 48.320173 -48.330466
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2017 9 12 1 90.685452 6.802760
Obj: 2017 9 12 1 39.403759 -23.861278
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2017 9 12 1 87.176751 11.816508
Obj: 2017 9 12 1 38.286528 -21.992880
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2017 9 12 1 73.382951 48.041791
Obj: 2017 9 12 1 23.417049 7.187997
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2017 9 12 1 205.436121 51.560446
Obj: 2017 9 12 1 342.239498 65.088104
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2017 9 12 1 308.181477 47.524951
Obj: 2017 9 12 1 343.415119 -2.430761
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2017 9 12 1 175.472293 -57.014844
Obj: 2017 9 12 1 359.613945 -64.311643
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2017 9 12 1 74.891552 -31.590112
Obj: 2017 9 12 1 27.763717 6.146613
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger772006/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 Sep 11 21:55:23 EDT 2017