Interplanetary Radio Burst Tracker - NASA · 2014. 7. 3. · STEREO/WAVES! Interplanetary Radio...

STEREO/WAVES Interplanetary Radio Burst Tracker - Stuart D. Bale, Keith Goetz, Milan Maksimovic

Science Working Group Teleconf 13 June 2014

Observatoire de Paris University of Minnesota

University of California - Berkeley Goddard Space Flight Center

University of Colorado - LASP




STEREO/WAVES Science Working Group – 13 June 2014 - Teleconf

S/WAVES 2

Status •  Both A & B instruments continue to function nominally

–  No unexpected resets or anomalies –  No trend changes in HK health and safety parameters

•  S/WAVES operations go well –  Commands go up –  Telemetry comes down – reduced to rate C – recently gappy –  Associated data products are produced and made available –  APL operations team continues to get us our bits – thanks!





S/WAVES 3

Behind the Sun

1

• what is the typical type III beam width near 1 AU for simple type III bursts?, ! - for multiple type III bursts?, ! - for intense, complex type IIIs (SAs), involving CMEs?!

Unique Science Questions:!

Spatial extent of the electron beam !

Radiation characteristic of the electron beam!

Exciter speeds within the beam!

• how are in-situ LWs and local emissions near 1 AU distributed ! longitudinally and radially within the electron beam?!

I Analysis of In-situ signatures of Type III electron beams:!

• do the type III exciters decelerate as they propagate through the IPM to 1 AU?!

• what is the spatial range of the local emissions observed near 1 AU?!

• is there an exciter speed variation across the beam?!

• how do the intensities and durations of LWs and local emissions vary! at different spatial locations within the electron beam?,! - with plasma & magnetic field parameters?! - with exciter speeds?!

• how often are local emissions and LWs observed simultaneously near 1 AU?!

As the angular separation between the STEREO s/c decreases during the 2014 – 2016 time frame!new and unique observations of the electron exciter beam characteristics for solar type III bursts!

and for in-situ type II radiation can be made!

• can we directly measure, by time-of-flight, the exciter speeds near 1 AU!where in-situ plasma waves analyses are generally done and where theories are tested?!

• when both STEREOs observe local emissions, will this radiation in the type III!source region have the same harmonic structure?,!

- will the TDS waveforms exhibit the same harmonic structure?!





S/WAVES 4

Behind the Sun

2

• how are type II source foreshock regions distributed over the shock front near 1 AU?!

II Analysis of In-situ signatures of radiation generated by CME/shocks:!

• how long does a typical type II foreshock region generate radio emissions?!

• how does the local type II radio intensity vary with shock location and !geometry (quasi-perp vs. quasi-parallel)?!

• how often are signatures of locally generated type II emissions near 1 AU observed? !

• why is remote type II radiation sometimes observed only at the !fundamental of the plasma frequency, !

other times only at the harmonic, and sometimes at both?!

• what is the spatial extent of a type II foreshock source region at the shock front near 1 AU?!

• how does the local type II intensity vary with the !plasma and magnetic field parameters?!





S/WAVES 5

Behind the Sun Current Sheet (CS) Observations Between STEREO A and B at 1 AU

Fundamental question: Are small- and large-scale CS fundamentally different? (turbulent-driven vs. flux tubes representative of solar magnetic field origins?)





S/WAVES 6

Type III in-situ on A and B STEREO/WAVES Daily Summary - 02-May-2014 (DOY 122)

Ahea

dBe

hind

0:00 3:00 6:00 9:00 12:00 15:00 18:00 21:00 24:00

0:00 3:00 6:00 9:00 12:00 15:00 18:00 21:00 24:00

LFR A Ch1Ey-Ex...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................Int/Auto125ms/On...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

LFR B DF/Ch1/Ch2DF2/Ey-Ex/-Ez...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................Int/Auto/Cross500/4ms/On/On...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

LFR C DF/Ch1/Ch2DF2/Ey-Ex/-Ez...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................Int/Auto/Cross1000/16ms/On/On...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

HFR 1 DF/Ch1/Ch2DF2/Ex-Ey/+Ez...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................Int/Auto/Cross20ms/On/On...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................St/Step/NSt/NSw0/1/38/1...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

HFR 2 DF/Ch1/Ch2Off/Ex-Ey/+Ez...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................Int/Auto/Cross2.5ms/Off/Off...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................St/Step/NSt/NSw38/1/281/1...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

TDS P1/P2/P3/P4Ex/Ey/Ez/Ex-EyT100...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................Speed/Filter250ks/s/108kHz...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

55

85287Q/19H

TDSmax Ch3 dBs

-1

2APM_Ey Volts

-1

2APM_Ey Volts

55

85222Q/19H

TDSmax Ch1 dBs

TDS P1/P2/P3/P4Ex/Ey/Ez/Ex-EyT100......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................Speed/Filter250ks/s/108kHz......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................

HFR 2 DF/Ch1/Ch2Off/Ex-Ey/+Ez......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................Int/Auto/Cross2.5ms/Off/Off......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................St/Step/NSt/NSw38/1/281/1......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................

HFR 1 DF/Ch1/Ch2DF2/Ex-Ey/+Ez......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................Int/Auto/Cross20ms/On/On......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................St/Step/NSt/NSw0/1/38/1......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................

LFR C DF/Ch1/Ch2DF2/Ey-Ex/-Ez......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................Int/Auto/Cross1000/16ms/On/On......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................

LFR B DF/Ch1/Ch2DF2/Ey-Ex/-Ez......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................Int/Auto/Cross500/4ms/On/On......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................

LFR A Ch1Ey-Ex......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................Int/Auto125ms/On......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................

10MHz

1MHz

100kHz

10kHz

2.5kHz

16MHz

-0.1

-1.0

-10.0

-100.0

^̂

Ahead source file = swaves_ahead_2014_122_1_05.fin (Recovery:99.7% HK, 86% Pkts)

Behind source file = swaves_behind_2014_122_1_05.fin (Recovery: 100.0% HK, 96% Pkts)

Ahead PSE Angle = xxx.x

Behind PSE Angle = xxx.x Time (UTC)

10MHz

1MHz

100kHz

10kHz

2.5kHz -0.1

-1.0

-10.0

-100.0

^̂̂

swaves_summary_20140502_g_s made on 2014-06-01 at 07:27:24 with TMlib V943 and Dynspec V016

DPU up 564.4d, V412d26

DPU up 260.4d, V412d27

1

4

7

10

14

dB

Langmuir waves





S/WAVES 7

Type III in-situ STEREO/WAVES Daily Summary - 02-May-2014 (DOY 122)

Ahea

dBe

hind

0:00 3:00 6:00 9:00 12:00 15:00 18:00 21:00 24:00

0:00 3:00 6:00 9:00 12:00 15:00 18:00 21:00 24:00







55

85287Q/19H

TDSmax Ch3 dBs

-1

2APM_Ey Volts

-1

2APM_Ey Volts

55

85222Q/19H

TDSmax Ch1 dBs

TDS P1/P2/P3/P4Ex/Ey/Ez/Ex-EyT100......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................Speed/Filter250ks/s/108kHz......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................

HFR 2 DF/Ch1/Ch2Off/Ex-Ey/+Ez......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................Int/Auto/Cross2.5ms/Off/Off......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................St/Step/NSt/NSw38/1/281/1......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................

HFR 1 DF/Ch1/Ch2DF2/Ex-Ey/+Ez......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................Int/Auto/Cross20ms/On/On......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................St/Step/NSt/NSw0/1/38/1......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................

LFR C DF/Ch1/Ch2DF2/Ey-Ex/-Ez......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................Int/Auto/Cross1000/16ms/On/On......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................

LFR B DF/Ch1/Ch2DF2/Ey-Ex/-Ez......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................Int/Auto/Cross500/4ms/On/On......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................

LFR A Ch1Ey-Ex......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................Int/Auto125ms/On......................................................................................................................................................................................................................................................................................................................................................... ....................................................................................................................................

10MHz

1MHz

100kHz

10kHz

2.5kHz

16MHz

-0.1

-1.0

-10.0

-100.0

^̂





10MHz

1MHz

100kHz

10kHz

2.5kHz -0.1

-1.0

-10.0

-100.0

^̂̂


DPU up 564.4d, V412d26

DPU up 260.4d, V412d27

1

4

7

10

14

dB

Activity from SWX

Activity from HK





S/WAVES 8

Type III in-situ on A and B – again! STEREO/WAVES Daily Summary - 05-May-2014 (DOY 125)

Ahea

dBe

hind

0:00 3:00 6:00 9:00 12:00 15:00 18:00 21:00 24:00

0:00 3:00 6:00 9:00 12:00 15:00 18:00 21:00 24:00







55

85246Q/20H

TDSmax Ch3 dBs

-1

2APM_Ey Volts

-1

2APM_Ey Volts

55

85260Q/20H

TDSmax Ch1 dBs







10MHz

1MHz

100kHz

10kHz

2.5kHz

16MHz

-0.1

-1.0

-10.0

-100.0





10MHz

1MHz

100kHz

10kHz

2.5kHz -0.1

-1.0

-10.0

-100.0


DPU up 567.4d, V412d26

DPU up 263.4d, V412d27

1

4

7

10

14

dB

Langmuir waves





S/WAVES 9

Space Weather/Beacon/HK data

S/WAVES SWX STA SWAVES HK STA SWAVES TDS STA IMPACT SWX STA

S/WAVES SWX STB SWAVES HK STB SWAVES TDS STB IMPACT SWX STB





S/WAVES 10

Reduced operations •  S/WAVES normally uses 1 packet per second

–  58 packets/minute of science by default (2,104 b/s) •  Reduced as we move away

–  Rate A: 2,104 –  Rate B: 1,897 –  Rate C: 1,674

–  1 packet per minute of HK (36 b/s) –  1 packet per minute of SWX (36 b/s)

•  Reduced science can be done with HK and SWX alone

•  Some science with ~3 hours per day •  Better science with A-B overlap

•  Magnetic field vectors would be good too





S/WAVES 11

Behind the Sun •  S/WAVES could do some good science

–  Luck might give us some great stuff •  We have not done a lot of power-ons in the blind

–  Would likely work perfectly well •  We do not have an internal non-volatile stored command table •  We could build and upload a flight software patch

–  Giving desired behind-the-sun mode and bit-rate by default –  Telecommands – when available – would allow a return to normal mode –  Writing to S/C SSR partition –  FSW development is more or less straight forward but not funded

•  Giving us great recorded far-side science •  IMPACT

–  MAG would be very useful –  STE suprathermal electrons would be very useful

Interplanetary Radio Burst Tracker - NASA · 2014. 7. 3. · STEREO/WAVES! Interplanetary Radio...

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Transcript of Interplanetary Radio Burst Tracker - NASA · 2014. 7. 3. · STEREO/WAVES! Interplanetary Radio...