Space Radiation Climatology-2: Radiation Belts

• Data Status– O’Brien – Weigel (ViRBO)

• Models ready for DA– Shprits

• Science updates– Vassiliadis– Sigsbee– Shi– Rigler

Paul O’Brien, paul.obrien@aero.org

FG9 Wiki: http://virbo.org/wiki/index.php/GEM2007

Overview of Existing Data SetsData Set Orbit/Duration Channels Status

HEO-1 Molniya, L>2, high altitude, little coverage L<4, 1994-

PRO: >80, >160, >320 keV, >20, >40, >55, >66 MeV

ELE: >130, >230 keV, >1.5, >4, >6.5, >8.5 MeV

Not very quantitative

HEO-3 Molniya, L>2, high altitude, 1997-

PRO: >80, >160, >320 keV, >5, 8.5-35, 16-40, 27-45 MeV

ELE: >130, >230, >450, >630 keV, >1.5, >3.0 MeV

Not very quantitative

ICO 45o, circular, L>2.5, high altitude, 2001-

PRO:>15, >24, >33, >44, >54 MeVELE: >1.2, >2.2, >4, >6, >8 MeV

Not very quantitative,Release in Limbo

SAMPEX LEO (500 km)1992.5 onward

PRO: up to 400 MeVELE: >0.5, >1, 1-6, 3-16, 10-20 MeV

In pretty good shape

OV3-3 MEO (362x4488,81o)8/’66-9/’67

PRO: >105 MeV prots (c/s only)ELE: 0.3-2.3 MeV, 9 channels

In pretty good shape

S3-3 MEO (236x8048,97.5o)1976-1979

PRO: 80 keV-15.5 MeV (5 ch), >60 MeV (c/s only)

ELE: 12 keV-1.6 MeV (12 ch)

In pretty good shapePitch-angle problem

OV1-19 MEO (250x3111,104.8o)3/’69-3/’70

PRO: >9 to >130 MeV (7 omni ch)0.2-5 MeV (4 dE/dx ch, 13 LEPS ch)

ELE: 0.05-5 MeV (24 ch)

MagES level 2All others level 1

Overview of Existing Data Sets (cont.)Data Set Orbit/Duration Channels Status

Polar Polar, 1996- Electron and proton science instruments: HIST, IES, IPS, MICS, HYDRA

In pretty good shape

CRRES GTO, <2 yrs Electron and proton science instruments: PROTEL, HEEF, MEA, (LEPA)

In pretty good shapeContamination in the inner zone

TSX-5 LEO, 400 x 1700 km, 67 deg incl.June 2000- Jul 2006

CEASE (dosimeter & telescope)Protons: 20 – 100 MeV, 4 integral

channelElectrons: 0.06 – 4 MeV, 5 integral

channels

Developing inversion techniques to maximize spectral information

APEX LEO, 362x2500 km, 70o ’94-’96

DosimeterElectrons: >0.25, >1.0, >2.0, >5.0 MeVProtons: > 5, >20, >35, >35 MeV

Broad channels with cross contamination

GPS MEO, decades Dosimeter type channels, electrons only Flux conversion TBR

LANL GEO GEO, decades Electrons, protons eV – MeV, many channels

In pretty good shape

GOES GEO, decades Few electron channels, many proton channels (until GOES 13)

In pretty good shape

DSP-21 GEOAug 2001 onward

CEASE (dosimeter & telescope)Protons: 20 – 100 MeV, 4 integral chansElectrons: 0.06 – 4 MeV, 5 integral chans

Developing inversion techniques to maximize spectral information