TDRSS lightcurve for Trigger=1064221
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 07 Aug 21 10:20:06 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1064221, Seg_Num: 0
GRB_RA: 76.677d {+05h 06m 43s} (J2000),
77.143d {+05h 08m 34s} (current),
75.601d {+05h 02m 24s} (1950)
GRB_DEC: +58.245d {+58d 14' 43"} (J2000),
+58.272d {+58d 16' 21"} (current),
+58.178d {+58d 10' 43"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 0 [cnts] Image_Peak=2270 [image_cnts]
TRIGGER_DUR: 112.000 [sec]
TRIGGER_INDEX: 20000 E_range: 15-50 keV
BKG_INTEN: 0 [cnts]
BKG_TIME: 0.00 SOD {00:00:00.00} UT
BKG_DUR: 0 [sec]
GRB_DATE: 19433 TJD; 219 DOY; 21/08/07
GRB_TIME: 36220.49 SOD {10:03:40.49} UT
GRB_PHI: 3.83 [deg]
GRB_THETA: 49.34 [deg]
SOLN_STATUS: 0x20000013
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 12.28 [sigma]
MERIT_PARAMS: +1 +0 +0 +7 +1 +2 +0 +0 -48 +0
SUN_POSTN: 137.61d {+09h 10m 26s} +16.29d {+16d 17' 31"}
SUN_DIST: 60.83 [deg] Sun_angle= 4.0 [hr] (West of Sun)
MOON_POSTN: 124.76d {+08h 19m 03s} +23.67d {+23d 40' 08"}
MOON_DIST: 48.23 [deg]
MOON_ILLUM: 1 [%]
GAL_COORDS: 151.63, 10.43 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 81.47, 35.20 [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 an image trigger. (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)
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 = 17.54,15.32 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 07 Aug 21 10:24:28 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1064221, Seg_Num: 0
GRB_RA: 76.677d {+05h 06m 43s} (J2000),
77.143d {+05h 08m 34s} (current),
75.601d {+05h 02m 24s} (1950)
GRB_DEC: +58.245d {+58d 14' 43"} (J2000),
+58.272d {+58d 16' 21"} (current),
+58.178d {+58d 10' 43"} (1950)
GRB_DATE: 19433 TJD; 219 DOY; 21/08/07
GRB_TIME: 36220.49 SOD {10:03:40.49} UT
TRIGGER_INDEX: 20000
GRB_PHI: 3.83 [deg]
GRB_THETA: 49.34 [deg]
DELTA_TIME: 0.00 [sec]
TRIGGER_DUR: 112.000 [sec]
SOLN_STATUS: 0x13
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 12.28 [sigma]
LC_URL: sw01064221000msb.lc
GCN template for BAT paragraph
Click here!
At 10:03:40 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 210807 ***A*** (trigger=1064221). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 76.677, +58.245 which is
RA(J2000) = 05h 06m 43s
Dec(J2000) = +58d 14' 43"
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 ~1599 counts/sec (15-350 keV), at ~65 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
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: 102.4 s +/- 4.096 s
Estimated T50 duration: 69.632 s +/- 4.096 s
Estimated Peak Interval: MET 650023513.08799994 +/- 0.500000 s
Estimated background rate 1: 4881.625 near MET 650023432.000000 s
Estimated background rate 2: 5148.031 near MET 650023627.776000 s
Estimated total duration: 181.632 s (for data selection)
(from MET 650023440.000000 to MET 650023621.632000)
Estimated total fluence: 48359.929735 count
Created GTI with 17 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 76.677 58.245 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 76.677 58.245
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: 2021 8 7 10 245.550592 -3.708359
Obj: 2021 8 7 10 221.704354 53.763049
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2021 8 7 10 222.157814 -30.253213
Obj: 2021 8 7 10 217.184032 30.379151
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2021 8 7 10 215.932395 -32.139135
Obj: 2021 8 7 10 216.820245 28.670535
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2021 8 7 10 168.092899 -53.160052
Obj: 2021 8 7 10 204.851518 -0.538988
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2021 8 7 10 90.845535 -31.344444
Obj: 2021 8 7 10 177.201071 -62.980115
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2021 8 7 10 109.299461 0.775143
Obj: 2021 8 7 10 170.098897 4.000812
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2021 8 7 10 274.038820 42.649042
Obj: 2021 8 7 10 168.955862 59.554543
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2021 8 7 10 261.860236 -19.124970
Obj: 2021 8 7 10 200.896381 -5.475821
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1064221/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 Aug 7 06:25:44 EDT 2021