FW: iridium 77?

MALEY, PAUL D. (paul.d.maley1@jsc.nasa.gov)
Mon, 22 Jun 1998 06:52:19 -0500

> BTW, in adding up the Iridiums, looking at the Iridium.tle, the lowest
> number
> is #4.  There is no #1, #2, or #3.  I don't remember ever reading an
> explanation
> for this, but I'm sure someone knows....(?).
> 
> -- Jake Rees
>    
>>>>The answer is: As for IR 1 through IR 3, those were never flown, as they
were ground
prototype and qualification test vehicles.  I don't believe there is
presently
any plan to re-use those tail numbers, so they will forever be absent from
the
on-orbit constellation.

Paul D. Maley
United Space Alliance
DO5/Cargo Operations
NASA Johnson Space Center
Houston TX 77058 USA

tel. 281-244-0208; fax: 281-244-1140
email: paul.d.maley1@jsc.nasa.gov
latitude 29.6049 north, longitude 95.1086 west, elev 6m