TDRSS lightcurve for Trigger=519380
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Wed 04 Apr 12 12:51:47 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 519380, Seg_Num: 0
GRB_RA: 235.012d {+15h 40m 03s} (J2000),
235.156d {+15h 40m 37s} (current),
234.423d {+15h 37m 42s} (1950)
GRB_DEC: +12.882d {+12d 52' 54"} (J2000),
+12.843d {+12d 50' 34"} (current),
+13.043d {+13d 02' 33"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 17004 [cnts] Image_Peak=499 [image_cnts]
TRIGGER_DUR: 4.096 [sec]
TRIGGER_INDEX: 298 E_range: 25-100 keV
BKG_INTEN: 147052 [cnts]
BKG_TIME: 46207.93 SOD {12:50:07.93} UT
BKG_DUR: 40 [sec]
GRB_DATE: 16021 TJD; 95 DOY; 12/04/04
GRB_TIME: 46262.39 SOD {12:51:02.39} UT
GRB_PHI: -175.82 [deg]
GRB_THETA: 41.69 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 9.11 [sigma]
IMAGE_SIGNIF: 11.42 [sigma]
MERIT_PARAMS: +1 +0 +0 +2 +2 +1 +0 +0 +70 +0
SUN_POSTN: 13.96d {+00h 55m 49s} +5.97d {+05d 58' 05"}
SUN_DIST: 134.95 [deg] Sun_angle= 9.3 [hr] (West of Sun)
MOON_POSTN: 163.14d {+10h 52m 34s} +1.73d {+01d 43' 42"}
MOON_DIST: 72.08 [deg]
MOON_ILLUM: 93 [%]
GAL_COORDS: 21.60, 48.15 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 229.05, 31.48 [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 = 189.91,-8.91 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Wed 04 Apr 12 13:10:19 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 519380, Seg_Num: 0
GRB_RA: 235.012d {+15h 40m 03s} (J2000),
235.156d {+15h 40m 37s} (current),
234.423d {+15h 37m 42s} (1950)
GRB_DEC: +12.882d {+12d 52' 54"} (J2000),
+12.843d {+12d 50' 34"} (current),
+13.043d {+13d 02' 33"} (1950)
GRB_DATE: 16021 TJD; 95 DOY; 12/04/04
GRB_TIME: 46262.39 SOD {12:51:02.39} UT
TRIGGER_INDEX: 298
GRB_PHI: -175.82 [deg]
GRB_THETA: 41.69 [deg]
DELTA_TIME: -5.00 [sec]
TRIGGER_DUR: 4.096 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 9.11 [sigma]
IMAGE_SIGNIF: 11.42 [sigma]
LC_URL: sw00519380000msb.lc
GCN template for BAT paragraph
Click here!
At 12:51:02 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 120404 ***A*** (trigger=519380). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 235.012, +12.882 which is
RA(J2000) = 15h 40m 03s
Dec(J2000) = +12d 52' 54"
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 ~1546 counts/sec (15-350 keV), at ~5 sec after the trigger.
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: 17.664 s +/- 0.4098 s
Estimated T50 duration: 8.96 s +/- 0.461511 s
Estimated Peak Interval: MET 355236671.55199999 +/- 0.500000 s
Estimated background rate 1: 7584.312 near MET 355236654.400000 s
Estimated background rate 2: 7861.389 near MET 355236807.168000 s
Estimated total duration: 95.616 s (for data selection)
(from MET 355236662.400000 to MET 355236758.016000)
Estimated total fluence: 10265.859439 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 235.012 12.882 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: 2012 4 4 13 282.851598 24.501723
Obj: 2012 4 4 13 91.291327 19.045169
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2012 4 4 13 261.181416 -2.894660
Obj: 2012 4 4 13 73.419632 47.374384
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2012 4 4 13 257.729859 -7.550047
Obj: 2012 4 4 13 66.336956 51.543975
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2012 4 4 13 239.539314 -44.346703
Obj: 2012 4 4 13 338.072939 82.480249
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2012 4 4 13 35.931404 -60.041346
Obj: 2012 4 4 13 241.226100 18.744741
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2012 4 4 13 135.016985 -38.592396
Obj: 2012 4 4 13 267.543140 19.502352
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2012 4 4 13 349.570561 66.880769
Obj: 2012 4 4 13 127.143086 -29.664982
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2012 4 4 13 246.586165 24.326792
Obj: 2012 4 4 13 105.289258 0.564140
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/raid2/prebascript/trigger519380/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:
Wed Apr 4 09:10:48 EDT 2012