TDRSS lightcurve for Trigger=1215687
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Fri 16 Feb 24 17:26:51 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1215687, Seg_Num: 0
GRB_RA: 263.270d {+17h 33m 05s} (J2000),
263.668d {+17h 34m 40s} (current),
262.445d {+17h 29m 47s} (1950)
GRB_DEC: -33.708d {-33d 42' 27"} (J2000),
-33.723d {-33d 43' 22"} (current),
-33.673d {-33d 40' 22"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 1867 [cnts] Image_Peak=130 [image_cnts]
TRIGGER_DUR: 1.024 [sec]
TRIGGER_INDEX: 398 E_range: 15-25 keV
BKG_INTEN: 11591 [cnts]
BKG_TIME: 62775.07 SOD {17:26:15.07} UT
BKG_DUR: 8 [sec]
GRB_DATE: 20356 TJD; 47 DOY; 24/02/16
GRB_TIME: 62791.01 SOD {17:26:31.01} UT
GRB_PHI: 52.05 [deg]
GRB_THETA: 9.76 [deg]
SOLN_STATUS: 0x503
RATE_SIGNIF: 9.59 [sigma]
IMAGE_SIGNIF: 8.09 [sigma]
MERIT_PARAMS: +1 +0 +0 +0 +0 -2 +0 +1 -44 +0
SUN_POSTN: 329.72d {+21h 58m 54s} -12.33d {-12d 19' 40"}
SUN_DIST: 63.36 [deg] Sun_angle= 4.4 [hr] (West of Sun)
MOON_POSTN: 55.71d {+03h 42m 51s} +23.16d {+23d 09' 39"}
MOON_DIST: 153.36 [deg]
MOON_ILLUM: 51 [%]
GAL_COORDS: 354.54, -0.28 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 264.31,-10.40 [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 matches a source in the ground catalog: GX_354-0, delta=0.257 [deg].
COMMENTS: This is not a GRB.
COMMENTS: This trigger occurred at longitude,latitude = 218.90,-18.21 [deg].
COMMENTS:
COMMENTS: This trigger occured while the StarTracker had lost lock, so it is possibly bogus.
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Fri 16 Feb 24 17:31:02 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1215687, Seg_Num: 0
GRB_RA: 263.270d {+17h 33m 05s} (J2000),
263.668d {+17h 34m 40s} (current),
262.445d {+17h 29m 47s} (1950)
GRB_DEC: -33.708d {-33d 42' 27"} (J2000),
-33.723d {-33d 43' 22"} (current),
-33.673d {-33d 40' 22"} (1950)
GRB_DATE: 20356 TJD; 47 DOY; 24/02/16
GRB_TIME: 62791.01 SOD {17:26:31.01} UT
TRIGGER_INDEX: 398
GRB_PHI: 52.05 [deg]
GRB_THETA: 9.76 [deg]
DELTA_TIME: 7.00 [sec]
TRIGGER_DUR: 1.024 [sec]
SOLN_STATUS: 0x503
RATE_SIGNIF: 9.59 [sigma]
IMAGE_SIGNIF: 8.09 [sigma]
LC_URL: sw01215687000msb.lc
GCN template for BAT paragraph
Click here!
At 17:26:31 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 240216 ***A*** (trigger=1215687). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 263.270, -33.708 which is
RA(J2000) = 17h 33m 05s
Dec(J2000) = -33d 42' 27"
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 ~1070 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
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: 3.712 s +/- 0.128 s
Estimated T50 duration: 2.176 s +/- 0.181019 s
Estimated Peak Interval: MET 729797223.10400009 +/- 0.500000 s
Estimated background rate 1: 4290.651 near MET 729797211.328000 s
Estimated background rate 2: 4304.099 near MET 729797318.208000 s
Estimated total duration: 3.84 s (for data selection)
(from MET 729797222.656000 to MET 729797226.496000)
Estimated total fluence: 1463.049071 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 263.270 -33.708 0.083
No match
Search for this GRB position to the source locations in BAT transient monitor (search radius within 12 arcmin)
python compare_catalog.py 263.270 -33.708
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: 2024 2 16 17 352.644137 38.336685
Obj: 2024 2 16 17 46.189253 -1.621809
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2024 2 16 17 312.564749 31.672253
Obj: 2024 2 16 17 22.972214 20.068670
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2024 2 16 17 308.224531 26.748896
Obj: 2024 2 16 17 17.798293 20.265389
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2024 2 16 17 283.467550 0.872978
Obj: 2024 2 16 17 341.582967 33.600280
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2024 2 16 17 312.246434 -31.907195
Obj: 2024 2 16 17 293.934539 29.005079
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2024 2 16 17 229.644542 -59.364664
Obj: 2024 2 16 17 298.618298 -18.692875
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2024 2 16 17 58.997661 24.261535
Obj: 2024 2 16 17 68.109819 -38.505213
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2024 2 16 17 179.993925 71.989612
Obj: 2024 2 16 17 67.902164 34.849911
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1215687/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 Feb 16 12:32:02 EST 2024