Advances in Magnetospheric Physics with GEOS-1 and ISEE

(Opening Address of 13th ESLAB Symposium) With GEOS and ISEE occupying a major part of the ESA scientific programme it was clear several years ago that a 'natural' basis for the 1978 ESLAB Annual Symposium would be the early data from these two spacecraft. During the 1976 meeting of the European Geophysical Society in Amsterdam it became apparent to me that a much wider community was interested and that in particular Working Group 2 of COSPAR was considering a GEOS session during its 1978 meeting here in Innsbruck. This was of course as it ought to be because GEOS had been adopted as the reference spacecraft for the International Magnetospheric Study. After some discussions with COSPAR and with the organizers of the STP Symposium which was held here last week we felt that in the interest of customer relations and following good common sense we should give up some of our independence in 1978 and merge our Symposium with COSPAR. I would gratefully acknowledge the co-operation of COSPAR's Working Group 2 chairman and vice-chairman, the active support of the President of COSPAR and the 'gentleman's agreement' with the STP programme committee which arranged that the new ISEE and GEOS results were routed to this Symposium rather than to the STP. I have talked about how we came to have this joint Symposium. Perhaps I should tell you too how we came close to having no Symposium.

Table of Contents:
The GEOS-1 Mission.- I: GEOS-1 Wave and Field Experiments.- For GEOS S-300 Experimenters/Introduction to the S-300 Wave Experiment Onboard GEOS.- Measurements of Quasi-Static Electric Fields between 3 and 7 Earth Radii on GEOS-1.- ULF Waves Observed with Magnetic and Electric Sensors on GEOS-1.- VLF Electromagnetic Waves Observed Onboard GEOS-1.- GEOS-1 Observations of Electrostatic Waves, and their Relationship with Plasma Parameters.- Banded Electron Cyclotron Harmonic Instability — A First Comparison of Theory and Experiment.- VLF Waves: Conjugated Ground-Satellite Relationships.- ULF Waves: Conjugated Gound-Satellite Relationships.- Reception of the NKL (Jim Creek) Transmitter Onboard GEOS-1.- Observation on GEOS-1 of 10.2 to 13.6 kHz Ground Based Transmitter Signals.- Ground-Based ELF/VLF Observations at High Latitudes during Passes of GEOS-1 and ISEE-1 and -2.- The Uses of Past and Present Magnetospheric Field Models for Mapping Fluxes and Calculating Conjugate Points.- II: GEOS-1 Plasma and Particle Experiments.- Observations of Substorm-Associated Particle-Flux Variationas at 6?L?8 with GEOS-1.- Some Early Results of the keV Plasma Experiment on GEOS-1.- Dynamics of Magnetospheric Ion Composition as Observed by the GEOS Mass Spectrometer.- Thermal/Suprathermal Plasmas Observed by the S-302 Experiment on GEOS-1.- Electron Density and Temperature, as Measured by the Mutual Impedance Experiment on Board GEOS-1.- Plasma Density Measurements from the GEOS-1 Relaxation Sounder.- Small Scale Structure of Magnetospheric Electron Density Through On-Line Tracking of Plasma Resonances.- Multi-Experiment Determination of Plasma Density and Temperature.- Substorm-Associated Injections of Energetic Ions Observed by GEOS-1 and ATS-6 in and near Synchronous Altitude.-Observations of Low-Energy Electrons from AE-C in the South Polar Cusp durnig the Geomagnetic Storm of September 21, 1977.- DMSP-F2 Observations of Cusplike Electron Precipitation Regions during the September 19–21, 1977 Event.- to the ISEE Mission.- III: Magnetopause And Magnetosheath Observations.- Initial ISEE Magnetometer Results: Magnetopause Observations.- ISEE Plasma Observations near the Subsolar Magnetopause.- Three-Dimensional Plasma Measurements within the Earth’s Magnetosphere.- Dual Spacecraft Observations of Energetic Particles in the Vicinity of the Magnetopause, Bow Shock, and the Interplanetary Medium.- Early Results from ISEE-1 Electric Field Measurements.- Electric Field Measurements in the Solar Wind, Bow Shock, Magnetosheath, Magnetopause, and Magnetosphere.- Three-Dimensional Energetic Ion Observations and the Tangential Magnetopause Electric Field.- IV: Solar Wind and Bow Shock Observations.- Initial ISEE Magnetometer Results: Shock Observation.- Early Results from the ISEE Electron Density Experiment.- Preliminary Results from the Solar Wind Experiment on the ISEE-2 Satellite.- High Temporal Resolution Observations of Electron Heating at the Bow Shock.- Initial Observations of Low Energy Charged Particles Near the Earth’s Bow Shock on ISEE-1.- Initial Results from the ISEE-1 and -2 Plasma Wave Investigation.- First Results from the Six-Axis Electron Spectrometer on ISEE-1.