Re: Satellite designations in orbit

Jonathan McDowell (
Thu, 22 Aug 1996 11:30:59 -0400

I'm afraid both Philip and Igor are wrong this time -
PVO and PVP are sometimes known as Pioneer 12 and Pioneer 13.
However, I'm not sure this was ever an official NASA designation -
I haven't seen it in any primary source materials.
 Mariner 11 and 12 also never happened - those probes were renamed
Voyager 1 and 2 before launch.
   Jonathan McDowell