Section 4

This report is only the beginning of what will eventually be needed in order to have a detailed campaign plan. It gives the science goals, the justification for these goals, and an implementation scheme that outlines in a general way the measurements and spacecraft configurations that will be required.

It will be necessary to fill out this implementation scheme in detail by preparing a timeline and operating plan. This is best done after the launches of the key prime IACG spacecraft have occurred, when the exact orbits of the spacecraft are known. However, it is important to determine as soon as possible the procedures for obtaining such a detailed timeline and operating plan.

At the IACG Working Group-1 (Science) meeting at Airlie House on June 4, 1992, the Work-ing Group identified one person from each agency as the Campaign Coordinator for that agency. These persons are:

ISAS: Dr. A. Nishida
ESA: Dr. R. Schmidt
NASA: Dr. M. Acuña
IKI: Dr. L. Zelenyi

It is the responsibility of these Coordinators, working together with the Chairmen of IACG Working Groups-1, -2, and -3, to determine the procedures for obtaining the detailed time-lines and operating plans for the campaign. In view of the "Lessons Learned from Previous Campaigns" (Section 3.1), the following recommendations are made:

The Coordinators should identify a central entity to serve as the planning focus for the campaign. They should also define formal procedures for making decisions on the campaign operating plan and for communicating this plan to all concerned parties.
The Coordinators should review the rules for data handling and exchange that have been suggested, or are in place for each agency, and develop a common set of "rules of the road" under which campaign data will be exchanged and used.
The Coordinators should develop a plan for the coordinated analysis of campaign data. They should make recommendations on the kinds of data analysis facilities, procedures, and meetings that in their view could best produce a successful follow-up to the campaign in terms of science results and publications.

It is anticipated that as these issues are considered, and as the detailed time-line and operating plan is developed, supplements to this report will be issued.

The expected schedule of activities is:

1992 July GEOTAIL Launch.

October IACG Heads of Delegation Meeting, October 29-30. Formal submission of Workshop Report. Working Group Meetings.

November Distribution of Workshop Report to IACG PI and Co-I community.

1993 April Graz, Austria, Workshop on Second IACG Campaign:

Boundaries in Collisionless Plasma. Working Group Meetings.

September Publication of Graz Workshop Report.

October INTERBALL-TAIL Launch.

October Publication of First IACG Campaign Operating Plan.

November IACG Heads of Delegation Meeting, Russia. Working Group Meetings.

December INTERBALL-AURORAL Launch.

December WIND Launch.

Late in year First IACG Campaign: Magnetotail Energy Flow and the Role of Non-Linear Dynamics.

1994 TBD Workshop on the Third Campaign: Solar Events and their Manifestations in Geospace.

May POLAR Launch.

1994 August Workshop on the Results of the First IACG Campaign.

November IACG Heads of Delegation Meeting, Europe Working Group meetings.

1995 July Solar & Heliospheric Observatory (SOHO) Launch.

November IACG Heads of Delegation Meeting, Japan. Working Group Meetings.

December CLUSTER Launch.

1996 TBD Publication of the Operating Plans for the Second and Third IACG Campaigns.

Second and Third IACG Campaigns.

November IACG Heads of Delegation Meeting, USA. Working Group Meetings.

Table 4.1: The IACG Mission Set

                                            Number of
Mission                                     Spacecraft      Agency          Launch	

Part I. Core Missions

Geotail                                     1               ISAS/NASA       July 1992
Wind                                        1               NASA            Dec. 1993
Interball-Tail Probe                        2               Intercosmos     Oct.1993
Interball-Auroral Probe                     2               Intercosmos     Dec. 1993
Polar                                       1               NASA            May 1994
Solar & Heliospheric Observatory (SOHO)     1               ESA/NASA        July 1995
Cluster                                     4               ESA/NASA        Dec. 1995

Part II. Complementary Missions

Interplanetary Monitoring Platform (IMP-8)  1               NASA            Oct. 1973
Geostationary Operational                   2                               1981 (5)   
Environmental Satellites (GOES) -5 & -6                     NOAA            1986 (6) 
Akebono (formerly EXOS-D)                   1               ISAS            Feb. 1989
Active                                      2               Intercosmos     Sept. 1989
Apex                                        2               Intercosmos     Dec. 1991
Relict-2                                    1               Intercosmos     1994
Yohkoh (formerly Solar-A)                   1               ISAS            Aug. 1991
Upper Atmosphere Research Satellite (UARS)  1               NASA            Sept. 1991
Solar, Anamolous, and Magnetospheric 		
   Explorer (Sampex)                        1               NASA            June 1992
Coronas-I                                   1               Intercosmos     1993
Fast Auroral Snapshot Explorer (Fast)       1               NASA            Sept. 1994
Coronas-F                                   1               Intercosmos     1994
Advanced Composition Explorer (ACE)         1               NASA            1997
LANL Geosynchronous Spacecraft              3               DOE             1989, 1990, 1991
	
Part III.  Spacecraft in Heliocentric Orbits

International Cometary Explorer (ICE)       1               NASA            Aug. 1978
Sakigake                                    1               ISAS            Jan. 1985
Galileo                                     1               NASA/FRG        Oct. 1989
Ulysses                                     1               ESA/NASA        Oct. 1990	
Mars-94                                     1               Intercosmos     Oct. 1994