TDRSS lightcurve for Trigger=1101133
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Mon 04 Apr 22 11:55:23 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1101133, Seg_Num: 0
GRB_RA: 50.448d {+03h 21m 47s} (J2000),
50.750d {+03h 23m 00s} (current),
49.770d {+03h 19m 05s} (1950)
GRB_DEC: +10.005d {+10d 00' 16"} (J2000),
+10.083d {+10d 04' 59"} (current),
+9.826d {+09d 49' 33"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 12995 [cnts] Image_Peak=277 [image_cnts]
TRIGGER_DUR: 4.096 [sec]
TRIGGER_INDEX: 450 E_range: 15-50 keV
BKG_INTEN: 118212 [cnts]
BKG_TIME: 42811.09 SOD {11:53:31.09} UT
BKG_DUR: 40 [sec]
GRB_DATE: 19673 TJD; 94 DOY; 22/04/04
GRB_TIME: 42870.42 SOD {11:54:30.42} UT
GRB_PHI: -44.79 [deg]
GRB_THETA: 36.00 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 10.58 [sigma]
IMAGE_SIGNIF: 7.50 [sigma]
MERIT_PARAMS: +1 +0 +0 +2 +1 -2 -105 +0 -79 +0
SUN_POSTN: 13.54d {+00h 54m 08s} +5.79d {+05d 47' 32"}
SUN_DIST: 37.09 [deg] Sun_angle= -2.5 [hr] (East of Sun)
MOON_POSTN: 49.89d {+03h 19m 34s} +18.39d {+18d 23' 34"}
MOON_DIST: 8.35 [deg]
MOON_ILLUM: 10 [%]
GAL_COORDS: 172.58,-37.97 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 50.69, -8.20 [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 = 38.05,-17.96 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Mon 04 Apr 22 12:11:20 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1101133, Seg_Num: 0
GRB_RA: 50.448d {+03h 21m 47s} (J2000),
50.750d {+03h 23m 00s} (current),
49.770d {+03h 19m 05s} (1950)
GRB_DEC: +10.005d {+10d 00' 16"} (J2000),
+10.083d {+10d 04' 59"} (current),
+9.826d {+09d 49' 33"} (1950)
GRB_DATE: 19673 TJD; 94 DOY; 22/04/04
GRB_TIME: 42870.42 SOD {11:54:30.42} UT
TRIGGER_INDEX: 450
GRB_PHI: -44.79 [deg]
GRB_THETA: 36.00 [deg]
DELTA_TIME: -11.00 [sec]
TRIGGER_DUR: 4.096 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 10.58 [sigma]
IMAGE_SIGNIF: 7.50 [sigma]
LC_URL: sw01101133000msb.lc
GCN template for BAT paragraph
Click here!
At 11:54:30 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 220404 ***A*** (trigger=1101133). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 50.448, +10.005 which is
RA(J2000) = 03h 21m 47s
Dec(J2000) = +10d 00' 16"
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 ~1488 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
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: 29.44 s +/- 27.4883 s
Estimated T50 duration: 21.504 s +/- 22.24 s
Estimated Peak Interval: MET 670766101.24799991 +/- 0.500000 s
Estimated background rate 1: 5652.140 near MET 670766087.488000 s
Estimated background rate 2: 5430.723 near MET 670766225.728000 s
Estimated total duration: 66.56 s (for data selection)
(from MET 670766099.776000 to MET 670766166.336000)
Estimated total fluence: 1931.022391 count
Created GTI with 4 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 50.448 10.005 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 50.448 10.005
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: 2022 4 4 12 272.956423 12.827664
Obj: 2022 4 4 12 245.728219 -12.583024
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2022 4 4 12 252.939045 -15.451761
Obj: 2022 4 4 12 220.214123 -38.982545
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2022 4 4 12 248.699221 -19.669890
Obj: 2022 4 4 12 212.789309 -40.646511
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2022 4 4 12 224.152744 -55.642900
Obj: 2022 4 4 12 154.151524 -57.109763
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2022 4 4 12 56.481348 -50.563791
Obj: 2022 4 4 12 88.112820 -22.808732
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2022 4 4 12 121.218852 -28.955797
Obj: 2022 4 4 12 100.566559 2.389863
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2022 4 4 12 318.115918 60.750914
Obj: 2022 4 4 12 277.577379 34.209599
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2022 4 4 12 255.752629 12.147443
Obj: 2022 4 4 12 270.887249 -21.825006
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1101133/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 Apr 4 08:11:50 EDT 2022