TDRSS lightcurve for Trigger=895503
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Wed 27 Mar 19 23:16:37 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 895503, Seg_Num: 0
GRB_RA: 297.816d {+19h 51m 16s} (J2000),
297.986d {+19h 51m 57s} (current),
297.376d {+19h 49m 30s} (1950)
GRB_DEC: +39.070d {+39d 04' 12"} (J2000),
+39.120d {+39d 07' 12"} (current),
+38.941d {+38d 56' 28"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 983 [cnts] Image_Peak=73 [image_cnts]
TRIGGER_DUR: 0.512 [sec]
TRIGGER_INDEX: 190 E_range: 50-350 keV
BKG_INTEN: 13171 [cnts]
BKG_TIME: 83761.35 SOD {23:16:01.35} UT
BKG_DUR: 8 [sec]
GRB_DATE: 18569 TJD; 86 DOY; 19/03/27
GRB_TIME: 83773.90 SOD {23:16:13.90} UT
GRB_PHI: 58.33 [deg]
GRB_THETA: 13.10 [deg]
SOLN_STATUS: 0x83
RATE_SIGNIF: 6.16 [sigma]
IMAGE_SIGNIF: 6.64 [sigma]
MERIT_PARAMS: +1 +0 +0 -1 +3 -4 +0 +1 -31 +0
SUN_POSTN: 6.43d {+00h 25m 42s} +2.78d {+02d 46' 38"}
SUN_DIST: 71.62 [deg] Sun_angle= 4.6 [hr] (West of Sun)
MOON_POSTN: 275.09d {+18h 20m 23s} -21.64d {-21d 38' 30"}
MOON_DIST: 64.43 [deg]
MOON_ILLUM: 52 [%]
GAL_COORDS: 73.94, 6.26 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 313.69, 58.36 [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: Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.
COMMENTS: This trigger occurred at longitude,latitude = 159.36,17.34 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Wed 27 Mar 19 23:34:52 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 895503, Seg_Num: 0
GRB_RA: 297.816d {+19h 51m 16s} (J2000),
297.986d {+19h 51m 57s} (current),
297.376d {+19h 49m 30s} (1950)
GRB_DEC: +39.070d {+39d 04' 12"} (J2000),
+39.120d {+39d 07' 12"} (current),
+38.941d {+38d 56' 28"} (1950)
GRB_DATE: 18569 TJD; 86 DOY; 19/03/27
GRB_TIME: 83773.90 SOD {23:16:13.90} UT
TRIGGER_INDEX: 190
GRB_PHI: 58.33 [deg]
GRB_THETA: 13.10 [deg]
DELTA_TIME: 25.00 [sec]
TRIGGER_DUR: 0.512 [sec]
SOLN_STATUS: 0x83
RATE_SIGNIF: 6.16 [sigma]
IMAGE_SIGNIF: 6.64 [sigma]
LC_URL: sw00895503000msb.lc
GCN template for BAT paragraph
Click here!
At 23:16:13 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 190327 ***A*** (trigger=895503). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 297.816, +39.070 which is
RA(J2000) = 19h 51m 16s
Dec(J2000) = +39d 04' 12"
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 ~1117 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 background rate 1: 4118.985 near MET 575421459.328000 s
Estimated background rate 2: 4185.221 near MET 575421564.288000 s
Estimated total fluence: 0.000000 count
Created GTI with 2 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 297.816 39.070 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 297.816 39.070
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: 2019 3 27 23 89.825395 4.593924
Obj: 2019 3 27 23 160.429537 -8.551727
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2019 3 27 23 70.507996 33.016849
Obj: 2019 3 27 23 138.168123 -0.372253
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2019 3 27 23 64.861310 37.055188
Obj: 2019 3 27 23 135.037321 4.304438
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2019 3 27 23 24.766835 71.343833
Obj: 2019 3 27 23 125.154360 22.853706
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2019 3 27 23 242.187459 33.243281
Obj: 2019 3 27 23 163.355442 16.982095
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2019 3 27 23 282.767493 22.532555
Obj: 2019 3 27 23 146.632444 84.269876
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2019 3 27 23 127.563644 -44.175588
Obj: 2019 3 27 23 206.509012 -15.236502
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2019 3 27 23 91.293795 -3.326936
Obj: 2019 3 27 23 124.195618 -71.879473
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger895503/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:
Wed Mar 27 19:35:04 EDT 2019