TDRSS lightcurve for Trigger=866993
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sun 14 Oct 18 08:15:46 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 866993, Seg_Num: 0
GRB_RA: 272.166d {+18h 08m 40s} (J2000),
272.445d {+18h 09m 47s} (current),
271.422d {+18h 05m 41s} (1950)
GRB_DEC: -20.380d {-20d 22' 48"} (J2000),
-20.376d {-20d 22' 33"} (current),
-20.389d {-20d 23' 19"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 324 [cnts] Image_Peak=41 [image_cnts]
TRIGGER_DUR: 0.064 [sec]
TRIGGER_INDEX: 10411 E_range: 15-50 keV
BKG_INTEN: 17906 [cnts]
BKG_TIME: 29722.24 SOD {08:15:22.24} UT
BKG_DUR: 8 [sec]
GRB_DATE: 18405 TJD; 287 DOY; 18/10/14
GRB_TIME: 29734.72 SOD {08:15:34.72} UT
GRB_PHI: -60.70 [deg]
GRB_THETA: 36.60 [deg]
SOLN_STATUS: 0x18D
RATE_SIGNIF: 18.38 [sigma]
IMAGE_SIGNIF: 6.92 [sigma]
MERIT_PARAMS: +0 +0 +2 -4 +1 -3 -5 +1 -32 +0
SUN_POSTN: 199.35d {+13h 17m 23s} -8.17d {-08d 10' 16"}
SUN_DIST: 71.38 [deg] Sun_angle= -4.9 [hr] (East of Sun)
MOON_POSTN: 264.15d {+17h 36m 37s} -20.26d {-20d 15' 48"}
MOON_DIST: 7.78 [deg]
MOON_ILLUM: 28 [%]
GAL_COORDS: 10.02, -0.23 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 272.03, 3.04 [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 matches a source in the on-board catalog: Num=10201=SGR1806-20, delta=0.031 [deg].
COMMENTS: This matches a source in the ground catalog: SGR1806-20, delta=0.031 [deg].
COMMENTS: This is not a GRB.
COMMENTS: This is an interesting source.
COMMENTS: Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.
COMMENTS: This trigger occurred at longitude,latitude = 189.69,-4.56 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sun 14 Oct 18 08:32:50 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 866993, Seg_Num: 0
GRB_RA: 272.166d {+18h 08m 40s} (J2000),
272.445d {+18h 09m 47s} (current),
271.422d {+18h 05m 41s} (1950)
GRB_DEC: -20.380d {-20d 22' 48"} (J2000),
-20.376d {-20d 22' 33"} (current),
-20.389d {-20d 23' 19"} (1950)
GRB_DATE: 18405 TJD; 287 DOY; 18/10/14
GRB_TIME: 29734.91 SOD {08:15:34.91} UT
TRIGGER_INDEX: 10411
GRB_PHI: -60.70 [deg]
GRB_THETA: 36.60 [deg]
DELTA_TIME: 13.00 [sec]
TRIGGER_DUR: 0.064 [sec]
SOLN_STATUS: 0x18D
RATE_SIGNIF: 18.38 [sigma]
IMAGE_SIGNIF: 6.92 [sigma]
LC_URL: sw00866993000msb.lc
GCN template for BAT paragraph
Click here!
At 08:15:34 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 181014 ***A*** (trigger=866993). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 272.166, -20.380 which is
RA(J2000) = 18h 08m 40s
Dec(J2000) = -20d 22' 48"
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 ~2695 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: 22.144 s +/- 1.66892 s
Estimated T50 duration: 9.856 s +/- 5.28 s
Estimated Peak Interval: MET 561197757.05599999 +/- 0.500000 s
Estimated background rate 1: 3880.544 near MET 561197744.704000 s
Estimated background rate 2: 3847.812 near MET 561197920.192000 s
Estimated total duration: 141.056 s (for data selection)
(from MET 561197756.608000 to MET 561197897.664000)
Estimated total fluence: 3289.466245 count
Created GTI with 6 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 272.166 -20.380 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: 2018 10 14 8 245.744071 -38.546575
Obj: 2018 10 14 8 120.941107 -60.270574
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2018 10 14 8 208.191015 -63.941886
Obj: 2018 10 14 8 85.985018 -34.754144
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2018 10 14 8 194.040664 -64.207307
Obj: 2018 10 14 8 84.090575 -29.873106
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2018 10 14 8 105.723704 -56.506858
Obj: 2018 10 14 8 65.423496 6.782792
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2018 10 14 8 81.946979 2.452916
Obj: 2018 10 14 8 118.148861 69.788815
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2018 10 14 8 74.935387 7.142199
Obj: 2018 10 14 8 2.677238 35.146227
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2018 10 14 8 284.589978 9.043903
Obj: 2018 10 14 8 261.170940 -59.837483
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2018 10 14 8 298.888219 -27.036925
Obj: 2018 10 14 8 24.449102 -35.408407
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger866993/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 Oct 14 04:33:23 EDT 2018