Re: 01022A-Information please

From: Markus Mehring (
Date: Thu Jun 14 2001 - 03:55:07 PDT

  • Next message: Mark Harris: "Iridium sats"

    On Wed, 13 Jun 2001 22:21:33 -0400, you (Jonathan T Wojack
    <>) wrote:
    >I had thought the days of returning film back down to the Earth from
    >recon. satellites was over - that everybody now uses digital imagers in
    >orbit, and just beam the data back down to Earth?
    Nope, the standard method of film-return still has some advantages over
    digital imaging, enough (at least for Russia) to keep using it.
    (Who is "everybody" in this context, BTW?)
    >I would think that the later would be cheaper - such a satellite would
    >have a lifetime of around 10 years.
    Well, if you manage to stuff it with enough propellant...
    Optical spybirds usually tend to be in rather low orbits and need a
    frequent reboost. 10 years is a _bit_ of an optimistic life expectancy
    CU!	Markus
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