Another proposal was to use technology then under development for a maneuvering re-entry vehicle for ballistic missiles. ROTHR defined a series of resolution cells (each quite large); it could only say whether a bomber was or was not in each cell. Normally a cell would be far too large for a missile's active seeker to search, which was why ROTHR was considered a surveillance tool rather than a fire control sensor. However, a sensor on board a missile approaching the bomber stream from above, ie from space, might view the entire resolution cell. It turned out that a ballistic missile, LORAINE, could be fired from a standard veetical launcher cell, and plans called for equipping its manoevering re-entry vehicle with a millimetre-wave radar. The weapon would dive so fast that the bomber would have little chance of escaping. The space aspect of the system would have been the high-capacity link betwee ROTHR and the firing ship. LORAINE was not ready for tests until 1990, by which time the Cold War, and the Outer Air Battle, were both effectively over.
This is from Seapower and Space, pg 241, by Norman Friedman. Does anyone have more information on this missile? According to the lexicon hosted on FAS.org it was originally known as Ballistic Intercept Missile.