TDRSS lightcurve for Trigger=866783
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 13 Oct 18 02:40:00 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 866783, Seg_Num: 0
GRB_RA: 207.601d {+13h 50m 24s} (J2000),
207.800d {+13h 51m 12s} (current),
207.069d {+13h 48m 16s} (1950)
GRB_DEC: +40.179d {+40d 10' 43"} (J2000),
+40.086d {+40d 05' 10"} (current),
+40.426d {+40d 25' 34"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 4620 [cnts] Image_Peak=183 [image_cnts]
TRIGGER_DUR: 2.048 [sec]
TRIGGER_INDEX: 473 E_range: 25-100 keV
BKG_INTEN: 47937 [cnts]
BKG_TIME: 9538.25 SOD {02:38:58.25} UT
BKG_DUR: 24 [sec]
GRB_DATE: 18404 TJD; 286 DOY; 18/10/13
GRB_TIME: 9569.67 SOD {02:39:29.67} UT
GRB_PHI: -140.27 [deg]
GRB_THETA: 25.01 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 7.54 [sigma]
IMAGE_SIGNIF: 7.72 [sigma]
MERIT_PARAMS: +1 +0 +0 +1 +2 -2 +0 +0 -66 +0
SUN_POSTN: 198.20d {+13h 12m 49s} -7.71d {-07d 42' 41"}
SUN_DIST: 48.61 [deg] Sun_angle= -0.6 [hr] (East of Sun)
MOON_POSTN: 247.99d {+16h 31m 57s} -17.85d {-17d 50' 50"}
MOON_DIST: 68.96 [deg]
MOON_ILLUM: 17 [%]
GAL_COORDS: 83.60, 72.14 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 185.75, 47.12 [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 = 71.27,14.71 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 13 Oct 18 03:06:05 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 866783, Seg_Num: 0
GRB_RA: 207.601d {+13h 50m 24s} (J2000),
207.800d {+13h 51m 12s} (current),
207.069d {+13h 48m 16s} (1950)
GRB_DEC: +40.179d {+40d 10' 43"} (J2000),
+40.086d {+40d 05' 10"} (current),
+40.426d {+40d 25' 34"} (1950)
GRB_DATE: 18404 TJD; 286 DOY; 18/10/13
GRB_TIME: 9569.67 SOD {02:39:29.67} UT
TRIGGER_INDEX: 473
GRB_PHI: -140.27 [deg]
GRB_THETA: 25.01 [deg]
DELTA_TIME: 58.00 [sec]
TRIGGER_DUR:
GCN template for BAT paragraph
Click here!
At 02:39:29 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 181013 ***A*** (trigger=866783). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 207.601, +40.179 which is
RA(J2000) = 13h 50m 24s
Dec(J2000) = +40d 10' 43"
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 ~1218 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
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: 2.048 s +/- 0.128 s
Estimated T50 duration: 1.152 s +/- 0.286217 s
Estimated Peak Interval: MET 561091192.63999999 +/- 0.500000 s
Estimated background rate 1: 3909.986 near MET 561091179.776000 s
Estimated background rate 2: 3931.478 near MET 561091196.928000 s
Estimated total duration: 2.304 s (for data selection)
(from MET 561091191.552000 to MET 561091193.856000)
Estimated total fluence: 826.322638 count
Created GTI with 3 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 207.601 40.179 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 13 3 132.599357 -49.340199
Obj: 2018 10 13 3 151.471538 -3.460725
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2018 10 13 3 97.886444 -27.025411
Obj: 2018 10 13 3 132.487859 8.183318
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2018 10 13 3 95.158045 -21.825342
Obj: 2018 10 13 3 129.657021 13.081529
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2018 10 13 3 76.446357 13.581146
Obj: 2018 10 13 3 125.593388 33.108316
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2018 10 13 3 142.502267 61.584884
Obj: 2018 10 13 3 174.038969 18.263259
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2018 10 13 3 0.547086 47.848662
Obj: 2018 10 13 3 229.500500 80.725180
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2018 10 13 3 239.271359 -54.778587
Obj: 2018 10 13 3 196.384179 -18.618583
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2018 10 13 3 33.956322 -45.999474
Obj: 2018 10 13 3 119.172659 -61.809885
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger866783/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:
Fri Oct 12 23:06:23 EDT 2018