TDRSS lightcurve for Trigger=1216079
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sun 18 Feb 24 21:37:20 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1216079, Seg_Num: 0
GRB_RA: 245.225d {+16h 20m 54s} (J2000),
245.569d {+16h 22m 17s} (current),
244.515d {+16h 18m 04s} (1950)
GRB_DEC: -15.614d {-15d 36' 51"} (J2000),
-15.670d {-15d 40' 13"} (current),
-15.496d {-15d 29' 46"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 0 [cnts] Image_Peak=2804 [image_cnts]
TRIGGER_DUR: 64.000 [sec]
TRIGGER_INDEX: 20000 E_range: 15-50 keV
BKG_INTEN: 0 [cnts]
BKG_TIME: 0.00 SOD {00:00:00.00} UT
BKG_DUR: 0 [sec]
GRB_DATE: 20358 TJD; 49 DOY; 24/02/18
GRB_TIME: 77767.06 SOD {21:36:07.06} UT
GRB_PHI: 108.20 [deg]
GRB_THETA: 26.11 [deg]
SOLN_STATUS: 0x513
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 13.34 [sigma]
MERIT_PARAMS: +1 +0 +0 +6 +1 +2 +0 +0 -10 +0
SUN_POSTN: 331.83d {+22h 07m 18s} -11.57d {-11d 33' 58"}
SUN_DIST: 83.35 [deg] Sun_angle= 5.8 [hr] (West of Sun)
MOON_POSTN: 86.49d {+05h 45m 57s} +28.25d {+28d 15' 04"}
MOON_DIST: 156.94 [deg]
MOON_ILLUM: 73 [%]
GAL_COORDS: 359.28, 23.62 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 246.07, 5.79 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS: SWIFT-BAT GRB Coordinates.
COMMENTS: This is an image trigger. (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)
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: Sco_X-1, delta=0.238 [deg].
COMMENTS: This is not a GRB.
COMMENTS: This trigger occurred at longitude,latitude = 149.76,-16.06 [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: Sun 18 Feb 24 21:49:09 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1216079, Seg_Num: 0
GRB_RA: 135.720d {+09h 02m 53s} (J2000),
135.949d {+09h 03m 48s} (current),
135.247d {+09h 00m 59s} (1950)
GRB_DEC: -40.708d {-40d 42' 27"} (J2000),
-40.804d {-40d 48' 14"} (current),
-40.509d {-40d 30' 32"} (1950)
GRB_DATE: 20358 TJD; 49 DOY; 24/02/18
GRB_TIME: 77767.06 SOD {21:36:07.06} UT
TRIGGER_INDEX: 20000
GRB_PHI: -18.46 [deg]
GRB_THETA: 30.57 [deg]
DELTA_TIME: 0.00 [sec]
TRIGGER_DUR: 64.000 [sec]
SOLN_STATUS: 0x513
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 13.34 [sigma]
LC_URL: sw01216079000msb.lc
GCN template for BAT paragraph
Click here!
At 21:36:07 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 240218 ***A*** (trigger=1216079). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 135.720, -40.708 which is
RA(J2000) = 09h 02m 53s
Dec(J2000) = -40d 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 ~0 counts/sec (15-350 keV), at ~ 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
T50 and T90 calculation
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 135.720 -40.708 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 135.720 -40.708
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 18 21 56.922366 18.607169
Obj: 2024 2 18 21 295.867855 -37.795908
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2024 2 18 21 27.287850 42.600215
Obj: 2024 2 18 21 297.782031 -59.826082
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2024 2 18 21 19.153042 43.060019
Obj: 2024 2 18 21 296.099058 -65.075321
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2024 2 18 21 320.481429 50.406102
Obj: 2024 2 18 21 17.387187 -67.803332
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2024 2 18 21 274.881647 14.496155
Obj: 2024 2 18 21 42.976780 3.190291
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2024 2 18 21 276.022594 -11.880413
Obj: 2024 2 18 21 57.830581 -28.100319
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2024 2 18 21 90.587882 -25.759152
Obj: 2024 2 18 21 323.742745 5.892463
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2024 2 18 21 94.974344 31.543060
Obj: 2024 2 18 21 311.831763 9.804850
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1216079/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:
Sun Feb 18 16:49:42 EST 2024