TDRSS lightcurve for Trigger=1219874
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Tue 12 Mar 24 20:51:12 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1219874, Seg_Num: 0
GRB_RA: 85.474d {+05h 41m 54s} (J2000),
85.836d {+05h 43m 21s} (current),
84.727d {+05h 38m 54s} (1950)
GRB_DEC: +21.024d {+21d 01' 25"} (J2000),
+21.034d {+21d 02' 02"} (current),
+21.000d {+20d 59' 60"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 0 [cnts] Image_Peak=1764 [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: 20381 TJD; 72 DOY; 24/03/12
GRB_TIME: 74998.92 SOD {20:49:58.92} UT
GRB_PHI: 96.72 [deg]
GRB_THETA: 30.18 [deg]
SOLN_STATUS: 0x413
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 9.13 [sigma]
MERIT_PARAMS: +1 +0 +0 +6 +1 +0 +0 +1 +5 +0
SUN_POSTN: 353.36d {+23h 33m 27s} -2.87d {-02d 52' 01"}
SUN_DIST: 93.33 [deg] Sun_angle= -6.2 [hr] (East of Sun)
MOON_POSTN: 25.47d {+01h 41m 52s} +11.63d {+11d 37' 41"}
MOON_DIST: 58.38 [deg]
MOON_ILLUM: 9 [%]
GAL_COORDS: 186.31, -4.86 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 85.77, -2.35 [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 does not match any source in the ground catalog.
COMMENTS: This is a GRB.
COMMENTS: This trigger occurred at longitude,latitude = 343.99,-13.86 [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: Tue 12 Mar 24 21:06:45 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1219874, Seg_Num: 0
GRB_RA: 85.474d {+05h 41m 54s} (J2000),
85.836d {+05h 43m 21s} (current),
84.727d {+05h 38m 54s} (1950)
GRB_DEC: +21.024d {+21d 01' 25"} (J2000),
+21.034d {+21d 02' 02"} (current),
+21.000d {+20d 59' 60"} (1950)
GRB_DATE: 20381 TJD; 72 DOY; 24/03/12
GRB_TIME: 74998.92 SOD {20:49:58.92} UT
TRIGGER_INDEX: 20000
GRB_PHI: 96.72 [deg]
GRB_THETA: 30.18 [deg]
DELTA_TIME: 0.00 [sec]
TRIGGER_DUR: 64.000 [sec]
SOLN_STATUS: 0x413
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 9.13 [sigma]
LC_URL: sw01219874000msb.lc
GCN template for BAT paragraph
Click here!
At 20:49:58 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 240312 ***A*** (trigger=1219874). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 85.474, +21.024 which is
RA(J2000) = 05h 41m 54s
Dec(J2000) = +21d 01' 25"
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 ~3121 counts/sec (15-350 keV), at ~-23 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: 178.048 s +/- 38.1415 s
Estimated T50 duration: 178.048 s +/- 88.1337 s
Estimated Peak Interval: MET 731969411.19999993 +/- 0.500000 s
Estimated background rate 1: 8629.375 near MET 731969409.600000 s
Estimated background rate 2: 5587.577 near MET 731969603.584000 s
Estimated total duration: 178.048 s (for data selection)
(from MET 731969411.200000 to MET 731969589.248000)
Estimated total fluence: -171180.768740 count
Created GTI with 12 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 85.474 21.024 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 85.474 21.024
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 3 12 21 64.172009 24.236977
Obj: 2024 3 12 21 288.499326 53.445498
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2024 3 12 21 34.250613 49.962955
Obj: 2024 3 12 21 260.519935 26.344210
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2024 3 12 21 24.701407 50.998574
Obj: 2024 3 12 21 258.443209 21.685967
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2024 3 12 21 312.148188 57.724032
Obj: 2024 3 12 21 240.498209 -15.125073
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2024 3 12 21 266.612269 11.011348
Obj: 2024 3 12 21 320.570451 -77.114302
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2024 3 12 21 269.301093 -6.127407
Obj: 2024 3 12 21 171.111420 -34.088106
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2024 3 12 21 99.566483 -22.587892
Obj: 2024 3 12 21 73.553920 68.815767
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2024 3 12 21 102.900589 26.150853
Obj: 2024 3 12 21 214.249510 30.427480
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1219874/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:
Tue Mar 12 17:07:03 EDT 2024