TDRSS lightcurve for Trigger=791922
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Thu 23 Nov 17 14:15:19 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 791922, Seg_Num: 0
GRB_RA: 186.190d {+12h 24m 46s} (J2000),
186.413d {+12h 25m 39s} (current),
185.568d {+12h 22m 16s} (1950)
GRB_DEC: +32.531d {+32d 31' 51"} (J2000),
+32.432d {+32d 25' 55"} (current),
+32.808d {+32d 48' 28"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 5559 [cnts] Image_Peak=215 [image_cnts]
TRIGGER_DUR: 2.048 [sec]
TRIGGER_INDEX: 473 E_range: 25-100 keV
BKG_INTEN: 55854 [cnts]
BKG_TIME: 51251.95 SOD {14:14:11.95} UT
BKG_DUR: 24 [sec]
GRB_DATE: 18080 TJD; 327 DOY; 17/11/23
GRB_TIME: 51287.60 SOD {14:14:47.60} UT
GRB_PHI: -143.01 [deg]
GRB_THETA: 22.19 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 10.58 [sigma]
IMAGE_SIGNIF: 7.65 [sigma]
MERIT_PARAMS: +1 +0 +0 +1 +2 -2 +0 +0 -28 +0
SUN_POSTN: 239.36d {+15h 57m 27s} -20.45d {-20d 27' 16"}
SUN_DIST: 73.20 [deg] Sun_angle= 3.5 [hr] (West of Sun)
MOON_POSTN: 298.83d {+19h 55m 20s} -19.01d {-19d 00' 33"}
MOON_DIST: 118.62 [deg]
MOON_ILLUM: 22 [%]
GAL_COORDS: 168.27, 82.09 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 171.15, 31.97 [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 = 195.93,4.68 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Thu 23 Nov 17 14:47:15 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 791922, Seg_Num: 0
GRB_RA: 186.190d {+12h 24m 46s} (J2000),
186.413d {+12h 25m 39s} (current),
185.568d {+12h 22m 16s} (1950)
GRB_DEC: +32.531d {+32d 31' 51"} (J2000),
+32.432d {+32d 25' 55"} (current),
+32.808d {+32d 48' 28"} (1950)
GRB_DATE: 18080 TJD; 327 DOY; 17/11/23
GRB_TIME: 51287.60 SOD {14:14:47.60} UT
TRIGGER_INDEX: 473
GRB_PHI: -143.01 [deg]
GRB_THETA: 22.19 [deg]
DELTA_TIME: -43.00 [sec]
TRIGGER_DUR: 2.048 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 10.58 [sigma]
IMAGE_SIGNIF: 7.65 [sigma]
LC_URL: sw00791922000msb.lc
GCN template for BAT paragraph
Click here!
At 14:14:47 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 171123 ***A*** (trigger=791922). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 186.190, +32.531 which is
RA(J2000) = 12h 24m 46s
Dec(J2000) = +32d 31' 51"
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 ~1429 counts/sec (15-350 keV), at ~2 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
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: 49.024 s +/- 3.35985 s
Estimated T50 duration: 49.024 s +/- 22.3302 s
Estimated Peak Interval: MET 533139308.48000002 +/- 0.500000 s
Estimated background rate 1: 4770.625 near MET 533139284.800000 s
Estimated background rate 2: 4435.420 near MET 533139414.272000 s
Estimated total duration: 49.024 s (for data selection)
(from MET 533139286.400000 to MET 533139335.424000)
Estimated total fluence: -6537.435290 count
Created GTI with 5 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 186.190 32.531 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 11 23 14 316.915046 17.647036
Obj: 2017 11 23 14 50.552954 80.208984
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2017 11 23 14 293.570035 -1.059313
Obj: 2017 11 23 14 261.294401 68.788241
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2017 11 23 14 290.373063 -6.360422
Obj: 2017 11 23 14 263.398486 64.001576
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2017 11 23 14 281.293002 -36.415009
Obj: 2017 11 23 14 242.905361 27.240397
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2017 11 23 14 357.672745 -38.246535
Obj: 2017 11 23 14 253.369595 -43.918609
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2017 11 23 14 133.319880 -70.983939
Obj: 2017 11 23 14 212.623066 -14.138120
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2017 11 23 14 18.103627 38.670669
Obj: 2017 11 23 14 112.104756 32.369298
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2017 11 23 14 263.030286 54.359951
Obj: 2017 11 23 14 166.117221 25.642789
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger791922/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:
Thu Nov 23 09:48:03 EST 2017