TDRSS lightcurve for Trigger=1244778
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Thu 25 Jul 24 02:37:56 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1244778, Seg_Num: 0
GRB_RA: 299.054d {+19h 56m 13s} (J2000),
299.620d {+19h 58m 29s} (current),
297.895d {+19h 51m 35s} (1950)
GRB_DEC: -64.667d {-64d 40' 00"} (J2000),
-64.600d {-64d 35' 58"} (current),
-64.799d {-64d 47' 57"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 114 [cnts] Image_Peak=25 [image_cnts]
TRIGGER_DUR: 0.032 [sec]
TRIGGER_INDEX: 10315 E_range: 15-50 keV
BKG_INTEN: 22500 [cnts]
BKG_TIME: 9446.13 SOD {02:37:26.13} UT
BKG_DUR: 8 [sec]
GRB_DATE: 20516 TJD; 207 DOY; 24/07/25
GRB_TIME: 9456.69 SOD {02:37:36.69} UT
GRB_PHI: 153.53 [deg]
GRB_THETA: 21.74 [deg]
SOLN_STATUS: 0x83
RATE_SIGNIF: 6.70 [sigma]
IMAGE_SIGNIF: 6.73 [sigma]
MERIT_PARAMS: +1 +0 +0 -5 +1 -3 +0 +0 +70 +0
SUN_POSTN: 124.94d {+08h 19m 46s} +19.56d {+19d 33' 42"}
SUN_DIST: 134.82 [deg] Sun_angle= -11.6 [hr] (East of Sun)
MOON_POSTN: 353.73d {+23h 34m 56s} -4.39d {-04d 23' 26"}
MOON_DIST: 71.35 [deg]
MOON_ILLUM: 82 [%]
GAL_COORDS: 331.65,-31.22 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 286.47,-42.88 [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 does not match any source in the ground catalog.
COMMENTS: This is a GRB.
COMMENTS: Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.
COMMENTS: This trigger occurred at longitude,latitude = 236.69,-15.85 [deg].
COMMENTS: This AT will self-cancel at the end of the first orbit (ie I_signif<7.0 && Trig_dur<65msec).
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Thu 25 Jul 24 02:46:57 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1244778, Seg_Num: 0
GRB_RA: 299.054d {+19h 56m 13s} (J2000),
299.620d {+19h 58m 29s} (current),
297.895d {+19h 51m 35s} (1950)
GRB_DEC: -64.667d {-64d 40' 00"} (J2000),
-64.600d {-64d 35' 58"} (current),
-64.799d {-64d 47' 57"} (1950)
GRB_DATE: 20516 TJD; 207 DOY; 24/07/25
GRB_TIME: 9456.97 SOD {02:37:36.97} UT
TRIGGER_INDEX: 10315
GRB_PHI: 153.53 [deg]
GRB_THETA: 21.74 [deg]
DELTA_TIME: 36.00 [sec]
TRIGGER_DUR: 0.032 [sec]
SOLN_STATUS: 0x83
RATE_SIGNIF: 6.70 [sigma]
IMAGE_SIGNIF: 6.73 [sigma]
LC_URL: sw01244778000msb.lc
GCN template for BAT paragraph
Click here!
At 02:37:36 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 240725 ***A*** (trigger=1244778). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 299.054, -64.667 which is
RA(J2000) = 19h 56m 13s
Dec(J2000) = -64d 40' 00"
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 ~1039 counts/sec (15-350 keV), at ~2 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
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: 20.48 s +/- 7.81534 s
Estimated T50 duration: 20.48 s +/- 11.5058 s
Estimated Peak Interval: MET 743567929.66399992 +/- 0.500000 s
Estimated background rate 1: 4620.774 near MET 743567898.432000 s
Estimated background rate 2: 4349.011 near MET 743568013.632000 s
Estimated total duration: 20.48 s (for data selection)
(from MET 743567929.664000 to MET 743567950.144000)
Estimated total fluence: -1082.013668 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 299.054 -64.667 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 299.054 -64.667
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 7 25 2 132.385556 -15.657441
Obj: 2024 7 25 2 341.713994 -19.158613
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2024 7 25 2 110.259720 4.470733
Obj: 2024 7 25 2 332.831085 -23.415173
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2024 7 25 2 107.045199 9.783459
Obj: 2024 7 25 2 331.352193 -27.248499
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2024 7 25 2 99.136758 40.856563
Obj: 2024 7 25 2 334.842808 -31.506771
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2024 7 25 2 183.729005 39.025827
Obj: 2024 7 25 2 359.037974 5.865976
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2024 7 25 2 305.305268 67.094040
Obj: 2024 7 25 2 11.789397 -58.581160
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2024 7 25 2 192.438765 -40.749482
Obj: 2024 7 25 2 6.508029 -4.152686
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2024 7 25 2 84.837223 -49.731624
Obj: 2024 7 25 2 336.625186 48.453266
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1244778/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:
Wed Jul 24 22:47:42 EDT 2024