TDRSS lightcurve for Trigger=641698
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Wed 27 May 15 06:49:10 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 641698, Seg_Num: 0
GRB_RA: 288.958d {+19h 15m 50s} (J2000),
289.149d {+19h 16m 36s} (current),
288.336d {+19h 13m 21s} (1950)
GRB_DEC: +4.194d {+04d 11' 38"} (J2000),
+4.222d {+04d 13' 19"} (current),
+4.105d {+04d 06' 18"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 2763 [cnts] Image_Peak=175 [image_cnts]
TRIGGER_DUR: 0.512 [sec]
TRIGGER_INDEX: 124 E_range: 25-100 keV
BKG_INTEN: 31560 [cnts]
BKG_TIME: 24522.36 SOD {06:48:42.36} UT
BKG_DUR: 8 [sec]
GRB_DATE: 17169 TJD; 147 DOY; 15/05/27
GRB_TIME: 24535.80 SOD {06:48:55.80} UT
GRB_PHI: -91.77 [deg]
GRB_THETA: 10.26 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 16.03 [sigma]
IMAGE_SIGNIF: 9.07 [sigma]
MERIT_PARAMS: +1 +0 +0 -1 +2 +0 +0 +1 +62 +0
SUN_POSTN: 63.79d {+04h 15m 09s} +21.25d {+21d 15' 08"}
SUN_DIST: 128.78 [deg] Sun_angle= 9.0 [hr] (West of Sun)
MOON_POSTN: 172.71d {+11h 30m 51s} +1.58d {+01d 34' 59"}
MOON_DIST: 116.22 [deg]
MOON_ILLUM: 65 [%]
GAL_COORDS: 39.46, -3.49 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 291.18, 26.25 [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 = 355.32,-1.13 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Wed 27 May 15 07:05:41 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 641698, Seg_Num: 0
GRB_RA: 288.958d {+19h 15m 50s} (J2000),
289.149d {+19h 16m 36s} (current),
288.336d {+19h 13m 21s} (1950)
GRB_DEC: +4.194d {+04d 11' 38"} (J2000),
+4.222d {+04d 13' 19"} (current),
+4.105d {+04d 06' 18"} (1950)
GRB_DATE: 17169 TJD; 147 DOY; 15/05/27
GRB_TIME: 24535.80 SOD {06:48:55.80} UT
TRIGGER_INDEX: 124
GRB_PHI: -91.77 [deg]
GRB_THETA: 10.26 [deg]
DELTA_TIME: -63.00 [sec]
TRIGGER_DUR: 0.512 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 16.03 [sigma]
IMAGE_SIGNIF: 9.07 [sigma]
LC_URL: sw00641698000msb.lc
GCN template for BAT paragraph
Click here!
At 06:48:55 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 150527 ***A*** (trigger=641698). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 288.958, +4.194 which is
RA(J2000) = 19h 15m 50s
Dec(J2000) = +04d 11' 38"
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 ~4302 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: 99.52 s +/- 51.8421 s
Estimated T50 duration: 99.52 s +/- 64.7331 s
Estimated Peak Interval: MET 454402136.80000001 +/- 0.500000 s
Estimated background rate 1: 7153.625 near MET 454402128.800000 s
Estimated background rate 2: 5976.787 near MET 454402283.520000 s
Estimated total duration: 99.52 s (for data selection)
(from MET 454402132.800000 to MET 454402232.320000)
Estimated total fluence: -26989.138768 count
Created GTI with 17 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 288.958 4.194 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: 2015 5 27 7 209.005925 -24.184459
Obj: 2015 5 27 7 331.759846 51.925815
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2015 5 27 7 173.416571 -36.803548
Obj: 2015 5 27 7 289.007040 34.907466
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2015 5 27 7 166.850450 -34.297183
Obj: 2015 5 27 7 285.837427 29.593812
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2015 5 27 7 127.180498 -25.986005
Obj: 2015 5 27 7 264.121010 -3.841430
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2015 5 27 7 116.172684 1.525110
Obj: 2015 5 27 7 308.959427 -51.653675
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2015 5 27 7 91.285981 37.997355
Obj: 2015 5 27 7 199.208024 -49.688316
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2015 5 27 7 250.007043 7.814658
Obj: 2015 5 27 7 66.366335 43.225189
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2015 5 27 7 278.256950 -58.019608
Obj: 2015 5 27 7 199.000064 53.824624
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger641698/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 May 27 03:06:03 EDT 2015