TDRSS lightcurve for Trigger=1104692
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 30 Apr 22 13:57:50 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1104692, Seg_Num: 0
GRB_RA: 97.611d {+06h 30m 27s} (J2000),
97.917d {+06h 31m 40s} (current),
96.924d {+06h 27m 42s} (1950)
GRB_DEC: +9.510d {+09d 30' 36"} (J2000),
+9.493d {+09d 29' 36"} (current),
+9.545d {+09d 32' 43"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 2870 [cnts] Image_Peak=154 [image_cnts]
TRIGGER_DUR: 1.024 [sec]
TRIGGER_INDEX: 155 E_range: 50-350 keV
BKG_INTEN: 14334 [cnts]
BKG_TIME: 49978.94 SOD {13:52:58.94} UT
BKG_DUR: 8 [sec]
GRB_DATE: 19699 TJD; 120 DOY; 22/04/30
GRB_TIME: 49995.96 SOD {13:53:15.96} UT
GRB_PHI: -55.21 [deg]
GRB_THETA: 1.40 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 22.75 [sigma]
IMAGE_SIGNIF: 7.24 [sigma]
MERIT_PARAMS: +1 +0 +0 +0 +3 -3 +0 +1 -51 +0
SUN_POSTN: 37.80d {+02h 31m 12s} +14.88d {+14d 52' 44"}
SUN_DIST: 58.85 [deg] Sun_angle= -4.0 [hr] (East of Sun)
MOON_POSTN: 35.05d {+02h 20m 11s} +12.61d {+12d 36' 21"}
MOON_DIST: 61.65 [deg]
MOON_ILLUM: 0 [%]
GAL_COORDS: 202.08, -0.28 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 97.73,-13.73 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS: SWIFT-BAT GRB Coordinates.
COMMENTS: This Notice was delayed by more than 60 sec past the end of the trigger integration interval;
COMMENTS: probably due to it occurring during a Malindi downlink session.
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 = 13.59,10.18 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 30 Apr 22 14:15:50 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1104692, Seg_Num: 0
GRB_RA: 97.611d {+06h 30m 27s} (J2000),
97.917d {+06h 31m 40s} (current),
96.924d {+06h 27m 42s} (1950)
GRB_DEC: +9.510d {+09d 30' 36"} (J2000),
+9.493d {+09d 29' 36"} (current),
+9.545d {+09d 32' 43"} (1950)
GRB_DATE: 19699 TJD; 120 DOY; 22/04/30
GRB_TIME: 49995.96 SOD {13:53:15.96} UT
TRIGGER_INDEX: 155
GRB_PHI: -55.21 [deg]
GRB_THETA: 1.40 [deg]
DELTA_TIME: 57.00 [sec]
TRIGGER_DUR: 1.024 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 22.75 [sigma]
IMAGE_SIGNIF: 7.24 [sigma]
LC_URL: sw01104692000msb.lc
GCN template for BAT paragraph
Click here!
At 13:53:15 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 220430 ***A*** (trigger=1104692). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 97.611, +9.510 which is
RA(J2000) = 06h 30m 27s
Dec(J2000) = +09d 30' 36"
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 ~35167 counts/sec (15-350 keV), at ~38 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: 39.936 s +/- 2.90196 s
Estimated T50 duration: 9.216 s +/- 2.98545 s
Estimated Peak Interval: MET 673019666.11199999 +/- 0.500000 s
Estimated background rate 1: 4222.957 near MET 673019609.920000 s
Estimated background rate 2: 4276.951 near MET 673019764.416000 s
Estimated total duration: 99.072 s (for data selection)
(from MET 673019618.240000 to MET 673019717.312000)
Estimated total fluence: 674528.127655 count
Created GTI with 41 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 97.611 9.510 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 97.611 9.510
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 30 14 287.194086 42.575540
Obj: 2022 4 30 14 251.958349 -6.795402
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2022 4 30 14 261.856475 15.513809
Obj: 2022 4 30 14 229.005950 -34.344915
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2022 4 30 14 259.217490 10.809981
Obj: 2022 4 30 14 222.416191 -36.794979
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2022 4 30 14 241.353113 -25.992647
Obj: 2022 4 30 14 169.275788 -60.214788
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2022 4 30 14 2.516305 -73.598262
Obj: 2022 4 30 14 82.816239 -29.783997
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2022 4 30 14 158.539047 -38.047982
Obj: 2022 4 30 14 104.947863 -4.823128
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2022 4 30 14 41.997868 72.046847
Obj: 2022 4 30 14 283.404160 41.287891
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2022 4 30 14 226.872181 30.086282
Obj: 2022 4 30 14 267.152577 -14.171775
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1104692/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 Apr 30 10:16:04 EDT 2022