TDRSS lightcurve for Trigger=1252695
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Thu 05 Sep 24 18:26:22 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1252695, Seg_Num: 0
GRB_RA: 345.799d {+23h 03m 12s} (J2000),
346.092d {+23h 04m 22s} (current),
345.208d {+23h 00m 50s} (1950)
GRB_DEC: +35.495d {+35d 29' 42"} (J2000),
+35.628d {+35d 37' 42"} (current),
+35.226d {+35d 13' 32"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 2923 [cnts] Image_Peak=104 [image_cnts]
TRIGGER_DUR: 1.024 [sec]
TRIGGER_INDEX: 155 E_range: 50-350 keV
BKG_INTEN: 12856 [cnts]
BKG_TIME: 66349.87 SOD {18:25:49.87} UT
BKG_DUR: 8 [sec]
GRB_DATE: 20558 TJD; 249 DOY; 24/09/05
GRB_TIME: 66363.63 SOD {18:26:03.63} UT
GRB_PHI: 128.75 [deg]
GRB_THETA: 37.68 [deg]
SOLN_STATUS: 0x83
RATE_SIGNIF: 29.37 [sigma]
IMAGE_SIGNIF: 6.52 [sigma]
MERIT_PARAMS: +1 +0 +0 +0 +3 -4 +0 +0 +74 +0
SUN_POSTN: 164.96d {+10h 59m 50s} +6.42d {+06d 25' 06"}
SUN_DIST: 137.94 [deg] Sun_angle= 11.9 [hr] (West of Sun)
MOON_POSTN: 191.69d {+12h 46m 45s} -5.70d {-05d 41' 54"}
MOON_DIST: 141.93 [deg]
MOON_ILLUM: 6 [%]
GAL_COORDS: 99.32,-22.37 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 3.46, 37.75 [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 = 157.14,20.37 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Thu 05 Sep 24 18:42:42 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1252695, Seg_Num: 0
GRB_RA: 345.799d {+23h 03m 12s} (J2000),
346.092d {+23h 04m 22s} (current),
345.208d {+23h 00m 50s} (1950)
GRB_DEC: +35.495d {+35d 29' 42"} (J2000),
+35.628d {+35d 37' 42"} (current),
+35.226d {+35d 13' 32"} (1950)
GRB_DATE: 20558 TJD; 249 DOY; 24/09/05
GRB_TIME: 66363.63 SOD {18:26:03.63} UT
TRIGGER_INDEX: 155
GRB_PHI: 128.75 [deg]
GRB_THETA: 37.68 [deg]
DELTA_TIME: 64.00 [sec]
TRIGGER_DUR: 1.024 [sec]
SOLN_STATUS: 0x83
RATE_SIGNIF: 29.37 [sigma]
IMAGE_SIGNIF: 6.52 [sigma]
LC_URL: sw01252695000msb.lc
GCN template for BAT paragraph
Click here!
At 18:26:03 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 240905 ***A*** (trigger=1252695). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 345.799, +35.495 which is
RA(J2000) = 23h 03m 12s
Dec(J2000) = +35d 29' 42"
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 ~3453 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
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: 91.776 s +/- 4.10399 s
Estimated T50 duration: 59.392 s +/- 2.89772 s
Estimated Peak Interval: MET 747253651.19999993 +/- 0.500000 s
Estimated background rate 1: 3970.201 near MET 747253586.112000 s
Estimated background rate 2: 4061.675 near MET 747253741.312000 s
Estimated total duration: 100.48 s (for data selection)
(from MET 747253597.824000 to MET 747253698.304000)
Estimated total fluence: 16832.511772 count
Created GTI with 10 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 345.799 35.495 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 345.799 35.495
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 9 5 18 23.178643 55.349500
Obj: 2024 9 5 18 189.942715 -14.603431
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2024 9 5 18 317.763729 58.002408
Obj: 2024 9 5 18 161.033740 -19.588235
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2024 9 5 18 311.114758 53.229412
Obj: 2024 9 5 18 156.492661 -16.207950
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2024 9 5 18 272.162168 25.085265
Obj: 2024 9 5 18 131.345059 -6.036756
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2024 9 5 18 281.322823 -29.769187
Obj: 2024 9 5 18 136.411188 3.832998
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2024 9 5 18 232.838147 -32.905088
Obj: 2024 9 5 18 104.160158 56.465592
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2024 9 5 18 86.999254 18.805661
Obj: 2024 9 5 18 230.240682 2.635694
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2024 9 5 18 150.596682 48.988943
Obj: 2024 9 5 18 245.731884 -74.224728
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1252695/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:
Thu Sep 5 14:43:02 EDT 2024