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Philippe.Escoubet@esa.int

The Cluster mission

C. P. Escoubet

1 ESA/ESTEC, Noordwijk, The Netherlands

¥ What is Cluster?

¥ Scientists involved

¥ Science highlights

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Philippe.Escoubet@esa.int

What is Cluster?

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Philippe.Escoubet@esa.int

1 ASPOC, K. Torkar, A2 CIS, H. Reme, F3 EDI, G. Paschmann, D4 FGM, A. Balogh, UK5 PEACE, A. Fazakerley, UK6 RAPID, P. Daly, D

7 DWP, H. Alleyne, UK8 EFW, M. Andre, S9 STAFF, N. Cornilleau, F10 WBD, D. Gurnett, USA11 WHISPER, P. Decreau, F

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Philippe.Escoubet@esa.int

250 scientists involved in 73 labs

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Number

# 24

# 12# 2.4

North America = 73 PI/CoIs

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Number of PIs/CoIs

# 40

# 20# 4

Europe = 170 PIs/CoIs

Data centerChina: 4India: 2Japan: 3

Asia:

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Philippe.Escoubet@esa.int

ClusterSpeed: 145 km/sSize = 500 km

C1C3

C2

C4

Cluster in magnetosphere Out of magnetosphere

EFW data, M. Andre, S

Waves on the magnetopause

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Philippe.Escoubet@esa.int

Why do we need four spacecraft?

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Philippe.Escoubet@esa.int

C1/Rumba

C3/Samba

C2/Salsa

C4/Tango

Mid-altitude polar cusp

Universal Time on 30 Aug. 2001

Cluster 4/Tango

15 16 17 18

Ion

Ene

rgy

(KeV

)

10.10.01

10 cusp

Equator Pole

CIS data, H. Reme, F

cusp

Ion

Ene

rgy

(KeV

)

10.10.01

10 Cluster 1/Rumba

Ion

Ene

rgy

(KeV

)

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10 Cluster 3/Samba cuspcusp

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Philippe.Escoubet@esa.int

The aurora

(Photo J. Curtis, Fairbanks, Alasaka)

Black auroraG. Marklund

(Polar data L. Frank, Iowa, USA)

Auroral KilometricRadiationR. Mutel