TDRSS lightcurve for Trigger=1218399
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 02 Mar 24 21:36:03 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1218399, Seg_Num: 0
GRB_RA: 298.521d {+19h 54m 05s} (J2000),
298.746d {+19h 54m 59s} (current),
298.056d {+19h 52m 13s} (1950)
GRB_DEC: +35.698d {+35d 41' 52"} (J2000),
+35.762d {+35d 45' 45"} (current),
+35.566d {+35d 33' 57"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 0 [cnts] Image_Peak=3562 [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: 20371 TJD; 62 DOY; 24/03/02
GRB_TIME: 77294.98 SOD {21:28:14.98} UT
GRB_PHI: 87.91 [deg]
GRB_THETA: 0.12 [deg]
SOLN_STATUS: 0x1000041D
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 15.32 [sigma]
MERIT_PARAMS: +0 +0 +100 +6 +1 +4 +0 +1 -49 +0
SUN_POSTN: 344.15d {+22h 56m 35s} -6.75d {-06d 45' 10"}
SUN_DIST: 60.19 [deg] Sun_angle= 3.0 [hr] (West of Sun)
MOON_POSTN: 241.06d {+16h 04m 14s} -24.82d {-24d 48' 58"}
MOON_DIST: 81.47 [deg]
MOON_ILLUM: 58 [%]
GAL_COORDS: 71.31, 4.07 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 312.54, 55.00 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS: SWIFT-BAT GRB Coordinates.
COMMENTS: This Notice was delayed by more than 60 sec past the end of the trigger integration interval;
COMMENTS: probably due to it occurring during a Malindi downlink session.
COMMENTS: This is an image trigger. (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)
COMMENTS: A point_source was found.
COMMENTS: This matches a source in the on-board catalog: Num=28398=(null) (probably an AT_Slot).
COMMENTS: This does not match any source in the ground catalog.
COMMENTS: This is not a GRB.
COMMENTS: This is an interesting source.
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 02 Mar 24 21:41:01 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 8781854, Seg_Num: 0
GRB_RA: 298.521d {+19h 54m 05s} (J2000),
298.746d {+19h 54m 59s} (current),
298.056d {+19h 52m 13s} (1950)
GRB_DEC: +35.698d {+35d 41' 52"} (J2000),
+35.762d {+35d 45' 45"} (current),
+35.566d {+35d 33' 57"} (1950)
GRB_DATE: 20371 TJD; 62 DOY; 24/03/02
GRB_TIME: 77294.98 SOD {21:28:14.98} UT
TRIGGER_INDEX: 20000
GRB_PHI: 87.91 [deg]
GRB_THETA: 0.12 [deg]
DELTA_TIME: 9849.00 [sec]
TRIGGER_DUR: 64.000 [sec]
SOLN_STATUS: 0x41D
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 0.00 [sigma]
LC_URL: sw01218399000msb.lc
GCN template for BAT paragraph
Click here!
At 21:28:14 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 240302 ***A*** (trigger=1218399). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 298.521, +35.698 which is
RA(J2000) = 19h 54m 05s
Dec(J2000) = +35d 41' 52"
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 ~914 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
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 background rate 1: 4016.125 near MET 731107720.000000 s
Estimated background rate 2: 4016.125 near MET 731107720.000000 s
Estimated total fluence: 0.000000 count
Created GTI with 1 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 298.521 35.698 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 298.521 35.698
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 2 21 60.763227 21.839777
Obj: 2024 3 2 21 124.197289 14.923907
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2024 3 2 21 30.742281 46.774436
Obj: 2024 3 2 21 113.610259 35.960030
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2024 3 2 21 21.841910 47.518015
Obj: 2024 3 2 21 110.678736 41.262429
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2024 3 2 21 316.086875 54.441646
Obj: 2024 3 2 21 134.701935 65.327788
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2024 3 2 21 270.347310 12.497909
Obj: 2024 3 2 21 208.152379 15.698890
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2024 3 2 21 272.213997 -8.816992
Obj: 2024 3 2 21 253.028600 48.976976
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2024 3 2 21 95.541048 -23.965085
Obj: 2024 3 2 21 161.665331 -22.559305
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2024 3 2 21 99.526872 28.724454
Obj: 2024 3 2 21 116.672969 -29.191584
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1218399/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:
Sat Mar 2 16:41:43 EST 2024