TDRSS lightcurve for Trigger=1058804
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Fri 02 Jul 21 19:20:38 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1058804, Seg_Num: 0
GRB_RA: 168.570d {+11h 14m 17s} (J2000),
168.828d {+11h 15m 19s} (current),
167.971d {+11h 11m 53s} (1950)
GRB_DEC: -36.741d {-36d 44' 28"} (J2000),
-36.859d {-36d 51' 31"} (current),
-36.469d {-36d 28' 07"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 9607 [cnts] Image_Peak=128 [image_cnts]
TRIGGER_DUR: 1.024 [sec]
TRIGGER_INDEX: 155 E_range: 50-350 keV
BKG_INTEN: 27845 [cnts]
BKG_TIME: 68820.69 SOD {19:07:00.69} UT
BKG_DUR: 8 [sec]
GRB_DATE: 19397 TJD; 183 DOY; 21/07/02
GRB_TIME: 68833.69 SOD {19:07:13.69} UT
GRB_PHI: -157.89 [deg]
GRB_THETA: 60.28 [deg]
SOLN_STATUS: 0x20000083
RATE_SIGNIF: 95.06 [sigma]
IMAGE_SIGNIF: 6.99 [sigma]
MERIT_PARAMS: +1 +0 +0 +0 +3 -3 +0 +0 -6 +0
SUN_POSTN: 102.09d {+06h 48m 23s} +22.97d {+22d 58' 12"}
SUN_DIST: 86.74 [deg] Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN: 21.42d {+01h 25m 41s} +4.69d {+04d 41' 30"}
MOON_DIST: 136.13 [deg]
MOON_ILLUM: 41 [%]
GAL_COORDS: 282.08, 22.17 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 186.70,-37.74 [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: Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Fri 02 Jul 21 19:29:47 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1058804, Seg_Num: 0
GRB_RA: 168.570d {+11h 14m 17s} (J2000),
168.828d {+11h 15m 19s} (current),
167.971d {+11h 11m 53s} (1950)
GRB_DEC: -36.741d {-36d 44' 28"} (J2000),
-36.859d {-36d 51' 31"} (current),
-36.469d {-36d 28' 07"} (1950)
GRB_DATE: 19397 TJD; 183 DOY; 21/07/02
GRB_TIME: 68833.69 SOD {19:07:13.69} UT
TRIGGER_INDEX: 155
GRB_PHI: -157.89 [deg]
GRB_THETA: 60.28 [deg]
DELTA_TIME: -18.00 [sec]
TRIGGER_DUR: 1.024 [sec]
SOLN_STATUS: 0x83
RATE_SIGNIF: 95.06 [sigma]
IMAGE_SIGNIF: 6.99 [sigma]
LC_URL: sw01058804000msb.lc
GCN template for BAT paragraph
Click here!
At 19:07:13 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 210702 ***A*** (trigger=1058804). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 168.570, -36.741 which is
RA(J2000) = 11h 14m 17s
Dec(J2000) = -36d 44' 28"
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 ~10255 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
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: 115.072 s +/- 4.10848 s
Estimated T50 duration: 58.112 s +/- 2.89772 s
Estimated Peak Interval: MET 646945659.42400002 +/- 0.500000 s
Estimated background rate 1: 6072.229 near MET 646945645.280000 s
Estimated background rate 2: 6021.484 near MET 646945834.432000 s
Estimated total duration: 168.384 s (for data selection)
(from MET 646945653.760000 to MET 646945822.144000)
Estimated total fluence: 135939.841849 count
Created GTI with 25 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 168.570 -36.741 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 168.570 -36.741
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 7 2 19 62.451734 62.306032
Obj: 2021 7 2 19 328.763245 5.565998
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2021 7 2 19 321.063435 79.076331
Obj: 2021 7 2 19 309.078212 -7.466741
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2021 7 2 19 307.903434 74.288846
Obj: 2021 7 2 19 306.167886 -12.478701
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2021 7 2 19 256.442341 41.694545
Obj: 2021 7 2 19 301.724653 -34.471690
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2021 7 2 19 257.788329 -26.075555
Obj: 2021 7 2 19 355.024763 -21.674643
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2021 7 2 19 231.166684 -11.877937
Obj: 2021 7 2 19 71.303318 -80.869856
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2021 7 2 19 108.553990 14.448950
Obj: 2021 7 2 19 16.180042 22.013604
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2021 7 2 19 145.870711 28.207817
Obj: 2021 7 2 19 292.187345 60.868670
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1058804/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:
Fri Jul 2 15:32:44 EDT 2021