TDRSS lightcurve for Trigger=1218645
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Mon 04 Mar 24 18:28:11 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1218645, Seg_Num: 0
GRB_RA: 229.720d {+15h 18m 53s} (J2000),
230.191d {+15h 20m 46s} (current),
228.751d {+15h 15m 00s} (1950)
GRB_DEC: -57.363d {-57d 21' 47"} (J2000),
-57.450d {-57d 26' 59"} (current),
-57.182d {-57d 10' 52"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 0 [cnts] Image_Peak=1870 [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: 20373 TJD; 64 DOY; 24/03/04
GRB_TIME: 66414.97 SOD {18:26:54.97} UT
GRB_PHI: -156.85 [deg]
GRB_THETA: 29.30 [deg]
SOLN_STATUS: 0x10000013
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 8.18 [sigma]
MERIT_PARAMS: +1 +0 +0 +6 +1 -2 +0 +1 +14 +0
SUN_POSTN: 345.89d {+23h 03m 33s} -6.03d {-06d 01' 58"}
SUN_DIST: 98.25 [deg] Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN: 268.18d {+17h 52m 43s} -28.45d {-28d 27' 02"}
MOON_DIST: 39.25 [deg]
MOON_ILLUM: 38 [%]
GAL_COORDS: 321.81, 0.00 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 243.92,-37.51 [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 = 50.97,-19.87 [deg].
COMMENTS:
COMMENTS: NOTE: This BAT event is spatially(0.00<0.1deg) coincident with the SWIFT_BAT event (trignum=1218604).
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Mon 04 Mar 24 18:43:46 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 7842322, Seg_Num: 194
GRB_RA: 229.720d {+15h 18m 53s} (J2000),
230.191d {+15h 20m 46s} (current),
228.751d {+15h 15m 00s} (1950)
GRB_DEC: -57.363d {-57d 21' 47"} (J2000),
-57.450d {-57d 26' 59"} (current),
-57.182d {-57d 10' 52"} (1950)
GRB_DATE: 20373 TJD; 64 DOY; 24/03/04
GRB_TIME: 66414.97 SOD {18:26:54.97} UT
TRIGGER_INDEX: 20000
GRB_PHI: -156.85 [deg]
GRB_THETA: 29.30 [deg]
DELTA_TIME: 28845.00 [sec]
TRIGGER_DUR: 64.000 [sec]
SOLN_STATUS: 0x13
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 0.00 [sigma]
LC_URL: sw01218645000msb.lc
GCN template for BAT paragraph
Click here!
At 18:26:54 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 240304 ***A*** (trigger=1218645). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 229.720, -57.363 which is
RA(J2000) = 15h 18m 53s
Dec(J2000) = -57d 21' 47"
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 ~1125 counts/sec (15-350 keV), at ~5 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 background rate 1: 4654.875 near MET 731269628.000000 s
Estimated background rate 2: 4499.708 near MET 731269644.000000 s
Estimated total fluence: 0.000000 count
Created GTI with 2 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 229.720 -57.363 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 229.720 -57.363
Swift J1518-5721 34167 229.7358 -57.3617 0.008617181703294317
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 4 18 13.532967 44.036284
Obj: 2024 3 4 18 43.702554 -50.631943
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2024 3 4 18 324.156766 45.714611
Obj: 2024 3 4 18 37.136253 -27.039952
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2024 3 4 18 318.195540 41.250560
Obj: 2024 3 4 18 36.394197 -25.353304
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2024 3 4 18 283.387781 17.533217
Obj: 2024 3 4 18 23.151587 3.415224
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2024 3 4 18 294.888159 -25.148659
Obj: 2024 3 4 18 349.696602 63.151696
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2024 3 4 18 240.859822 -44.172095
Obj: 2024 3 4 18 346.695542 -4.322336
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2024 3 4 18 73.999613 15.366423
Obj: 2024 3 4 18 355.072114 -61.153903
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2024 3 4 18 145.698595 61.585638
Obj: 2024 3 4 18 24.015536 6.805486
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1218645/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:
Mon Mar 4 13:44:42 EST 2024