michael l. kaiser stereo project scientist nasa/goddard space flight center

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Michael L. Kaiser STEREO Project Scientist NASA/Goddard Space Flight Center STEREO June 11, 2008 STEREO at 1.4 years

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STEREO. Michael L. Kaiser STEREO Project Scientist NASA/Goddard Space Flight Center. June 11, 2008 STEREO at 1.4 years. STEREO-B (BEHIND) OBSERVATORY. 1.1m X 2.0 m X 1.2 m 610 kg ≥ 600 W. SECCHI Sun-Centered Imaging Package (SCIP) Assy (COR-1, COR-2, EUVI, GT). PLASTIC Instrument. - PowerPoint PPT Presentation

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Page 1: Michael L. Kaiser STEREO Project Scientist NASA/Goddard Space Flight Center

Michael L. Kaiser

STEREO Project Scientist

NASA/Goddard Space Flight Center

STEREO

June 11, 2008

STEREO at 1.4 years

Page 2: Michael L. Kaiser STEREO Project Scientist NASA/Goddard Space Flight Center

STEREO-B (BEHIND) OBSERVATORY

Deployed SWAVES Electric Field Antenna

(3 places)

DeployedIMPACT Boom

IMPACTSolar Wind Electron Analyzer (SWEA)

IMPACTSuprathermal Electron Detector

(STE)

IMPACTMagnetometer

(MAG)

SECCHI Heliospheric Imager

(HI)

SECCHISun-Centered ImagingPackage (SCIP) Assy

(COR-1, COR-2, EUVI, GT)

PLASTIC Instrument

IMPACT SEP

1.1m X 2.0 m X 1.2 m

610 kg

≥ 600 W

Page 3: Michael L. Kaiser STEREO Project Scientist NASA/Goddard Space Flight Center

STEREO Orbits

Sun SunEarth

Ahead @ +22/year

Behind @ -22/year

Heliocentric Inertial Coordinates(Ecliptic Plane Projection)

Geocentric Solar Ecliptic CoordinatesFixed Earth-Sun Line

(Ecliptic Plane Projection)

Ahead

BehindEarth

1 yr.

2 yr.

3 yr.4 yr.

1yr.

2yr.

3 yr.4 yr.

Page 4: Michael L. Kaiser STEREO Project Scientist NASA/Goddard Space Flight Center

STEREO Space Weather Data Products

Highest resolution data – available 24-48 hrsSECCHI: 2048 X 2048 imagesIMPACT: fluxes (10s sec), moments (few sec) and B (<1 sec)PLASTIC: fluxes and moments 1 min resolutionSWAVES: intensities from all frequencies (~367) every 15 sec

Other data products – available TBDKey parametersCatalogs and event tablesMovies

Research

Beacon (space weather) data – available ‘immediately’SECCHI: ~7 256 X 256 images every hour SECCHI: ~7 256 X 256 images every hour IMPACT: 1 min aves of B, 1 min aves solar wind moments and selected SEP fluxesIMPACT: 1 min aves of B, 1 min aves solar wind moments and selected SEP fluxesPLASTIC: 1 minute resolution selected moments and fluxesPLASTIC: 1 minute resolution selected moments and fluxesSWAVES: 1 minute summaries of alternate frequencies (0.1-16 MHz)SWAVES: 1 minute summaries of alternate frequencies (0.1-16 MHz)

‘Operational’

http://stereo-ssc.nascom.nasa.gov/beacon/

Page 5: Michael L. Kaiser STEREO Project Scientist NASA/Goddard Space Flight Center

Comets Lose Their Tails

Page 6: Michael L. Kaiser STEREO Project Scientist NASA/Goddard Space Flight Center

EUV Wave Structure/Evolution• First EUV wave with

– High cadence (< 2.5 min)– Multi-temperature (4 wavelengths within

minute)– Stereoscopic (EUVI-A, -B, EIT)

• A-B separation = 42 deg

• Cadence = 2.5 min

• Mild wavelet enhancement

Page 7: Michael L. Kaiser STEREO Project Scientist NASA/Goddard Space Flight Center

EUV Wave Structure/Evolution (Implications)

• Loops start to rise @ 04:21:00 UT– 10 min BEFORE wave

• Wave appears @ 04:28:30 UT

– No flare, no CME!

– Connection between wave & rising loops?

• Flare ribbons appear @ 04:31:00 UT

– Wave accelerates?

Page 8: Michael L. Kaiser STEREO Project Scientist NASA/Goddard Space Flight Center

Eruption in the Low Corona• A-B separation = 28 deg• Cadence = 10 min• Mild wavelet enhancement

Page 9: Michael L. Kaiser STEREO Project Scientist NASA/Goddard Space Flight Center

Eruption in the Low Corona (Implications)

•Visibility of prominence top depends on projection

– Gap of several hours between A &B.– Height-time analyses of eruptive

prominences from single viewpoint are unreliable for CME studies!

•The existence of kinked structures is projection-depended

– “kinked” structure seen in B, not A– Footpoints of eruptive prominence seen in

B, not A– Shape, configuration of erupting structures

is very uncertain from single viewpoint.

Kinked structures

Page 10: Michael L. Kaiser STEREO Project Scientist NASA/Goddard Space Flight Center

STEREO Actually ‘sees’ CIRs

Page 11: Michael L. Kaiser STEREO Project Scientist NASA/Goddard Space Flight Center

90° 180°STEREO separation

STEREO into cycle 24

Page 12: Michael L. Kaiser STEREO Project Scientist NASA/Goddard Space Flight Center

Click here to be dazzled

Page 13: Michael L. Kaiser STEREO Project Scientist NASA/Goddard Space Flight Center

http://stereo.gsfc.nasa.govor

http://www.nasa.gov/stereo