TDRSS lightcurve for Trigger=1040345
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 03 Apr 21 08:27:32 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1040345, Seg_Num: 0
GRB_RA: 2.767d {+00h 11m 04s} (J2000),
3.035d {+00h 12m 08s} (current),
2.134d {+00h 08m 32s} (1950)
GRB_DEC: -32.999d {-32d 59' 56"} (J2000),
-32.881d {-32d 52' 51"} (current),
-33.277d {-33d 16' 37"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 3507 [cnts] Image_Peak=173 [image_cnts]
TRIGGER_DUR: 1.024 [sec]
TRIGGER_INDEX: 137 E_range: 15-50 keV
BKG_INTEN: 22667 [cnts]
BKG_TIME: 30421.22 SOD {08:27:01.22} UT
BKG_DUR: 8 [sec]
GRB_DATE: 19307 TJD; 93 DOY; 21/04/03
GRB_TIME: 30433.95 SOD {08:27:13.95} UT
GRB_PHI: -113.49 [deg]
GRB_THETA: 20.16 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 10.58 [sigma]
IMAGE_SIGNIF: 7.52 [sigma]
MERIT_PARAMS: +1 +0 +0 +0 +1 -2 -100 +0 -77 +0
SUN_POSTN: 12.71d {+00h 50m 51s} +5.45d {+05d 26' 53"}
SUN_DIST: 39.41 [deg] Sun_angle= 0.6 [hr] (West of Sun)
MOON_POSTN: 270.03d {+18h 00m 07s} -24.85d {-24d 50' 59"}
MOON_DIST: 79.15 [deg]
MOON_ILLUM: 62 [%]
GAL_COORDS: 356.57,-79.48 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 347.91,-31.05 [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 = 53.22,-12.86 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 03 Apr 21 08:44:27 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1040345, Seg_Num: 0
GRB_RA: 2.767d {+00h 11m 04s} (J2000),
3.035d {+00h 12m 08s} (current),
2.134d {+00h 08m 32s} (1950)
GRB_DEC: -32.999d {-32d 59' 56"} (J2000),
-32.881d {-32d 52' 51"} (current),
-33.277d {-33d 16' 37"} (1950)
GRB_DATE: 19307 TJD; 93 DOY; 21/04/03
GRB_TIME: 30433.95 SOD {08:27:13.95} UT
TRIGGER_INDEX: 137
GRB_PHI: -113.49 [deg]
GRB_THETA: 20.16 [deg]
DELTA_TIME: 6.00 [sec]
TRIGGER_DUR: 1.024 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 10.58 [sigma]
IMAGE_SIGNIF: 7.52 [sigma]
LC_URL: sw01040345000msb.lc
GCN template for BAT paragraph
Click here!
At 08:27:13 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 210403 ***A*** (trigger=1040345). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 2.767, -32.999 which is
RA(J2000) = 00h 11m 04s
Dec(J2000) = -32d 59' 56"
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 ~1726 counts/sec (15-350 keV), at ~0 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: 131.84 s +/- 2.89772 s
Estimated T50 duration: 101.12 s +/- 2.90196 s
Estimated Peak Interval: MET 639131342.27199996 +/- 0.500000 s
Estimated background rate 1: 5098.750 near MET 639131239.200000 s
Estimated background rate 2: 5031.250 near MET 639131422.144000 s
Estimated total duration: 155.968 s (for data selection)
(from MET 639131241.600000 to MET 639131397.568000)
Estimated total fluence: 18825.961338 count
Created GTI with 16 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 2.767 -32.999 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 2.767 -32.999
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 4 3 8 230.821090 -31.158533
Obj: 2021 4 3 8 278.024455 -48.463694
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2021 4 3 8 192.719359 -52.151916
Obj: 2021 4 3 8 279.279629 -75.212966
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2021 4 3 8 182.889810 -51.185577
Obj: 2021 4 3 8 270.341714 -80.382998
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2021 4 3 8 121.118866 -45.899983
Obj: 2021 4 3 8 56.119315 -62.558427
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2021 4 3 8 95.818819 -0.949645
Obj: 2021 4 3 8 58.007307 10.876884
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2021 4 3 8 83.727311 18.578584
Obj: 2021 4 3 8 57.712753 -11.335255
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2021 4 3 8 270.383990 12.042072
Obj: 2021 4 3 8 308.112122 -0.250212
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2021 4 3 8 289.202518 -38.794099
Obj: 2021 4 3 8 314.595682 -6.736885
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1040345/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 3 04:46:04 EDT 2021