TDRSS lightcurve for Trigger=772052
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 06:33:59 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 772052, Seg_Num: 0
GRB_RA: 215.466d {+14h 21m 52s} (J2000),
215.801d {+14h 23m 12s} (current),
214.526d {+14h 18m 06s} (1950)
GRB_DEC: -62.030d {-62d 01' 47"} (J2000),
-62.110d {-62d 06' 36"} (current),
-61.802d {-61d 48' 06"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 630 [cnts] Image_Peak=93 [image_cnts]
TRIGGER_DUR: 0.064 [sec]
TRIGGER_INDEX: 10409 E_range: 15-50 keV
BKG_INTEN: 28924 [cnts]
BKG_TIME: 23612.32 SOD {06:33:32.32} UT
BKG_DUR: 8 [sec]
GRB_DATE: 18008 TJD; 255 DOY; 17/09/12
GRB_TIME: 23626.72 SOD {06:33:46.72} UT
GRB_PHI: -152.89 [deg]
GRB_THETA: 10.37 [deg]
SOLN_STATUS: 0x20000003
RATE_SIGNIF: 20.73 [sigma]
IMAGE_SIGNIF: 9.99 [sigma]
MERIT_PARAMS: +1 +0 +0 -4 +1 +0 +0 +1 -26 +0
SUN_POSTN: 170.53d {+11h 22m 07s} +4.08d {+04d 04' 45"}
SUN_DIST: 74.60 [deg] Sun_angle= -3.0 [hr] (East of Sun)
MOON_POSTN: 65.58d {+04h 22m 19s} +16.35d {+16d 20' 56"}
MOON_DIST: 129.67 [deg]
MOON_ILLUM: 62 [%]
GAL_COORDS: 313.32, -1.00 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 237.56,-44.59 [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 = 113.92,-13.96 [deg].
COMMENTS:
COMMENTS: NOTE: This BAT event is temporally(0.0<100sec) coincident with the FERMI_GBM event (trignum=526890831).
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Tue 12 Sep 17 06:53:22 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 772052, Seg_Num: 0
GRB_RA: 215.466d {+14h 21m 52s} (J2000),
215.801d {+14h 23m 12s} (current),
214.526d {+14h 18m 06s} (1950)
GRB_DEC: -62.030d {-62d 01' 47"} (J2000),
-62.110d {-62d 06' 36"} (current),
-61.802d {-61d 48' 06"} (1950)
GRB_DATE: 18008 TJD; 255 DOY; 17/09/12
GRB_TIME: 23626.83 SOD {06:33:46.83} UT
TRIGGER_INDEX: 10409
GRB_PHI: -152.89 [deg]
GRB_THETA: 10.37 [deg]
DELTA_TIME: -10.00 [sec]
TRIGGER_DUR: 0.064 [sec]
SOLN_STATUS: 0x2003
RATE_SIGNIF: 20.73 [sigma]
IMAGE_SIGNIF: 9.99 [sigma]
LC_URL: sw00772052000msb.lc
GCN template for BAT paragraph
Click here!
At 06:33:46 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 170912 ***A*** (trigger=772052). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 215.466, -62.030 which is
RA(J2000) = 14h 21m 52s
Dec(J2000) = -62d 01' 47"
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 ~9563 counts/sec (15-350 keV), at ~3 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: 75.264 s +/- 62.016 s
Estimated T50 duration: 6.4 s +/- 0.181019 s
Estimated Peak Interval: MET 526890849.98399997 +/- 0.500000 s
Estimated background rate 1: 5665.217 near MET 526890833.664000 s
Estimated background rate 2: 5326.416 near MET 526891022.080000 s
Estimated total duration: 166.912 s (for data selection)
(from MET 526890844.928000 to MET 526891011.840000)
Estimated total fluence: 40090.638038 count
Created GTI with 29 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 215.466 -62.030 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 6 199.340984 -45.155823
Obj: 2017 9 12 6 29.413151 -59.948258
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2017 9 12 6 147.709923 -49.297082
Obj: 2017 9 12 6 33.222705 -38.917428
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2017 9 12 6 141.112760 -45.006275
Obj: 2017 9 12 6 34.036191 -37.508641
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2017 9 12 6 103.067501 -21.861517
Obj: 2017 9 12 6 26.326207 -8.494358
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2017 9 12 6 110.646552 23.273065
Obj: 2017 9 12 6 12.457242 57.815030
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2017 9 12 6 62.444552 40.012595
Obj: 2017 9 12 6 358.867688 -6.569089
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2017 9 12 6 257.762202 -13.214017
Obj: 2017 9 12 6 339.558136 -52.180593
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2017 9 12 6 321.233281 -57.988637
Obj: 2017 9 12 6 11.805018 4.727285
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger772052/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:
Tue Sep 12 02:53:43 EDT 2017