David.Smith@CMU-CS-A (12/28/82)
From: David.Smith at CMU-CS-A (C410DS30) Before rushing off to build an L4 probe, could someone tell us what was learned by ISEE-3 (I think that's the name. It's the probe that is being diverted to intercept comet Giacobini-Zinner), which was in orbit around L1 for three or four years? David Smith