"The citizen science team wanted to execute burns to drop the craft back in its 1978 orbit, but the spacecraft disagreed. The original hope was to execute burns to blaze past the moon and drop the spacecraft puttering about in a L-1 halo orbit. Alas, although ISEE-3 had enough juice to do a power-up spin to reach its optimal rotation rate, the nitrogen propellant has bled away. The aging craft is willing, but after 30 billion miles, it just doesn't have enough gas to change its trajectory. Instead, it'll do a lunar flyby, and resume its heliocentric orbit, this time blazing a trail ahead of us instead of stalking the Earth. But here's the thing: this time, it'll be doing science."
ISEE-3 spacecraft presentation in Guildford Saturday, Southgate ARC
"Achim Vollhardt DH2VA and Mario Lorenz DL5MLO from AMSAT-DL Bochum will be giving a presentation on ISEE-3 (ICE) to the AMSAT-UK International Space Colloquium at the Holiday Inn, Guildford, GU2 7XZ. The event is open to all ."