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| <HTML> | |
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| <META NAME="GENERATOR" CONTENT="Adobe PageMill 3.0 Win"> | |
| <TITLE>International Program Office - Cluster II Project</TITLE> | |
| </HEAD> | |
| <BODY TEXT="#000099" BGCOLOR="#ffffff" VLINK="#990099"> | |
| <P><CENTER><TABLE WIDTH="555" BORDER="0" CELLSPACING="2" CELLPADDING="0" | |
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| <TD WIDTH="21%" HEIGHT="123"> | |
| <IMG SRC="../../../images/cluster-2.gif" WIDTH="158" HEIGHT="154" | |
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| <TD WIDTH="79%" HEIGHT="123"> | |
| <P><CENTER><B><FONT COLOR="#ff0000" SIZE="+2" FACE="Arial"><IMG | |
| SRC="../../../images/INTL_CLUSTERII_Title_LG.jpg" WIDTH="180" | |
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| <TD COLSPAN="2" HEIGHT="688"> | |
| <P> </P> | |
| <P><FONT COLOR="#000099" SIZE="-1" FACE="Arial">Cluster-II is | |
| a cooperative mission between NASA and ESA. On 3 April 1997 ESA's | |
| Science Programme Committee approved the reflight of the full | |
| mission by mid-2000. Cluster II will comprise the Phoenix spacecraft | |
| (built from the original flight spares) and three identical new | |
| satellites to be built bya European industrial consortium led | |
| by Daimler Benz Aerospace (Dornier). The Cluster II mission is | |
| an in-situ investigation of the Earth's magnetosphere using<BR> | |
| four identical spacecraft simultaneously. It will permit the | |
| accurate determination of three-dimensional and time-varying | |
| phenomena and will make it possible to distinguish between spatial | |
| and temporal variations. The satellites will be launched in two | |
| pairs by two Soyuz launchers (procured through the Starsem consortium) | |
| in mid-2000 from the Baikonur cosmodrome in Kazakhstan.</FONT></P> | |
| <P><FONT COLOR="#000099" SIZE="-1" FACE="Arial">As planned, the | |
| four spacecraft will carry out three-dimensional measurements | |
| in the Earth's magnetosphere, covering both large-scale and small-scale | |
| phenomena in the sunward and tail regions. Once Cluster II has | |
| joined Soho in orbit, the original aims of the combined Solar-Terrestrial | |
| Science Programme, STSP should at last be fulfilled.</FONT></P> | |
| <P><FONT COLOR="#000099" SIZE="-1" FACE="Arial">Eventually the | |
| Cluster II and SOHO measurements will also be coordinated with | |
| an international fleet of spacecraft, through the IACG (Inter-Agency | |
| Consultative Group) to form a unique set of data on the interaction | |
| between the Sun and the Earth.</FONT></P> | |
| <P><B><FONT COLOR="#000099" SIZE="-1" FACE="Arial">Salient Features:</FONT></B></P> | |
| <P><B><FONT COLOR="#000099" SIZE="-1" FACE="Arial">Project Start:</FONT></B><FONT | |
| COLOR="#000099" SIZE="-1" FACE="Arial"> 2nd quarter 1995<BR> | |
| <B>Spacecraft Weight Dry:</B> 525 kg<BR> | |
| <B>Planned Lifetime:</B> 2 years<BR> | |
| <B>Orbit:</B> apogee of 19.6 Earth radii and a perigee of 4 Earth | |
| radii<BR> | |
| <B>Launch:</B> June-July 2000</FONT></P> | |
| <P><B><FONT COLOR="#000099" SIZE="-1" FACE="Arial">Instrument | |
| Complement:</FONT></B></P> | |
| <P><FONT COLOR="#000099" SIZE="-1" FACE="Arial">STAFF, the Spatio-Temporal | |
| Analysis of Field Fluctuations experiment (PI: N. Cornilleau-Wehrlin)<BR> | |
| EFW, the Electrical Field and Wave experiment (PI: G. Gustaffson)<BR> | |
| DWP, the Digital Wave-Processing experiment (PI: H. Alleyne)<BR> | |
| WHISPER, the Waves of High Frequency and Sounder for Probing | |
| of<BR> | |
| Density by Relaxation experiment (PI: P.M. Decreau).<BR> | |
| WBD, the Wideband Data instrument (PI:D.A. Gurnett)<BR> | |
| FGM, the Fluxgate Magnetometer (PI: A.Balogh)<BR> | |
| EDI, the Electron Drift Instrument (PI: G. Paschmann),<BR> | |
| ASPOC, the Active Spacecraft Potential Control experiment (PI: | |
| W. Riedler)<BR> | |
| PEACE, the Plasma Electron and Current Analyser (PI: A. Fazakerley).<BR> | |
| CIS, the Cluster Ion Spectrometry Experiment (PI: H. Reme),<BR> | |
| RAPID, Research with Adaptive Particle Imaging Detectors (PI: | |
| B. Wilken).</FONT></TD> | |
| </TR> | |
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