TDRSS lightcurve for Trigger=1227767
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 11 May 24 18:07:21 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1227767, Seg_Num: 0
GRB_RA: 336.664d {+22h 26m 39s} (J2000),
336.969d {+22h 27m 52s} (current),
336.040d {+22h 24m 10s} (1950)
GRB_DEC: +8.514d {+08d 30' 49"} (J2000),
+8.638d {+08d 38' 17"} (current),
+8.258d {+08d 15' 31"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 7538 [cnts] Image_Peak=281 [image_cnts]
TRIGGER_DUR: 2.048 [sec]
TRIGGER_INDEX: 262 E_range: 25-100 keV
BKG_INTEN: 74677 [cnts]
BKG_TIME: 65182.57 SOD {18:06:22.57} UT
BKG_DUR: 24 [sec]
GRB_DATE: 20441 TJD; 132 DOY; 24/05/11
GRB_TIME: 65213.22 SOD {18:06:53.22} UT
GRB_PHI: -173.54 [deg]
GRB_THETA: 28.38 [deg]
SOLN_STATUS: 0x20000003
RATE_SIGNIF: 14.89 [sigma]
IMAGE_SIGNIF: 8.52 [sigma]
MERIT_PARAMS: +1 +0 +0 +1 +2 -1 +0 +0 -33 +0
SUN_POSTN: 49.11d {+03h 16m 26s} +18.14d {+18d 08' 37"}
SUN_DIST: 70.43 [deg] Sun_angle= 4.8 [hr] (West of Sun)
MOON_POSTN: 99.55d {+06h 38m 11s} +28.32d {+28d 18' 54"}
MOON_DIST: 113.42 [deg]
MOON_ILLUM: 16 [%]
GAL_COORDS: 73.25,-40.00 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 341.69, 16.96 [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: This trigger occurred at longitude,latitude = 151.31,-11.14 [deg].
COMMENTS:
COMMENTS: NOTE: This BAT event is temporally(33.0<100sec) coincident with the FERMI_GBM event (trignum=737143585).
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 11 May 24 18:23:31 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1227767, Seg_Num: 0
GRB_RA: 336.664d {+22h 26m 39s} (J2000),
336.969d {+22h 27m 52s} (current),
336.040d {+22h 24m 10s} (1950)
GRB_DEC: +8.514d {+08d 30' 49"} (J2000),
+8.638d {+08d 38' 17"} (current),
+8.258d {+08d 15' 31"} (1950)
GRB_DATE: 20441 TJD; 132 DOY; 24/05/11
GRB_TIME: 65213.22 SOD {18:06:53.22} UT
TRIGGER_INDEX: 262
GRB_PHI: -173.54 [deg]
GRB_THETA: 28.38 [deg]
DELTA_TIME: -24.00 [sec]
TRIGGER_DUR: 2.048 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 14.89 [sigma]
IMAGE_SIGNIF: 8.52 [sigma]
LC_URL: sw01227767000msb.lc
GCN template for BAT paragraph
Click here!
At 18:06:53 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 240511 ***A*** (trigger=1227767). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 336.664, +8.514 which is
RA(J2000) = 22h 26m 39s
Dec(J2000) = +08d 30' 49"
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 ~4411 counts/sec (15-350 keV), at ~20 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: 196.224 s +/- 135.097 s
Estimated T50 duration: 196.224 s +/- 145.467 s
Estimated Peak Interval: MET 737143667.32800007 +/- 0.500000 s
Estimated background rate 1: 5538.542 near MET 737143627.200000 s
Estimated background rate 2: 4453.857 near MET 737143830.272000 s
Estimated total duration: 196.224 s (for data selection)
(from MET 737143632.000000 to MET 737143828.224000)
Estimated total fluence: -20656.068508 count
Created GTI with 24 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 336.664 8.514 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 336.664 8.514
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 5 11 18 33.221915 66.052840
Obj: 2024 5 11 18 94.044953 8.740328
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2024 5 11 18 301.352332 67.081181
Obj: 2024 5 11 18 75.936031 36.889840
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2024 5 11 18 296.110142 61.853196
Obj: 2024 5 11 18 70.228216 41.235556
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2024 5 11 18 259.667755 28.827628
Obj: 2024 5 11 18 32.466874 76.864324
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2024 5 11 18 268.907760 -35.075150
Obj: 2024 5 11 18 237.583966 28.857971
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2024 5 11 18 224.812403 -23.529206
Obj: 2024 5 11 18 277.134205 25.409813
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2024 5 11 18 98.525822 23.544965
Obj: 2024 5 11 18 132.266664 -39.437235
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2024 5 11 18 156.344771 38.001938
Obj: 2024 5 11 18 96.693387 -5.729270
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1227767/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 May 11 14:24:02 EDT 2024