RE: SuitSat 3 Feb 2006

From: Jos Heyman (josheyman@hotmail.com)
Date: Fri Jan 27 2006 - 03:43:25 EST

  • Next message: satcom: "Re: SuitSat 3 Feb 2006"

    Does anybody know if the suit that is going to be ejected was worn on an 
    EVA, and if so, by whom and when?
    
    Jos Heyman
    
    
    >From: "Ted Molczan" <seesat@rogers.com>
    >To: <SeeSat-L@satobs.org>
    >Subject: RE: SuitSat 3 Feb 2006
    >Date: Thu, 26 Jan 2006 19:47:26 -0500
    >
    >Dale Ireland wrote:
    >
    > > I would assume that the suit will have a lot of drag and not
    > > stay near the ISS long unless they are tethered. Any
    > > estimates of the drag or decay rate?
    >
    >In his excellent satellite catalogue, Jonathan McDowell lists a couple of
    >Russian Orlan DMA spacesuits, discarded from Mir in 1990 and 1991:
    >                                            Decay              Comment
    >20407   1986-017BY   Orlan-DM  No. 7?   1990-Jun-27   large piece (5 sq m 
    >RCS)
    >21603   1986-017EV   Orlan-DMA No. 10   1991-Oct-05
    >
    >86017BY decayed after about 166 d; 86017EV about 74 d. The latter initially
    >decayed at about four times the rate of Mir, ad took 42 h to move 100 km 
    >ahead
    >of Mir, about 14 s at orbital velocity.
    >
    >
    > > Any estimates of the magnitude?
    >
    >I estimate mag 4 to 6, under the most favourable circumstances, while suit 
    >at
    >ISS altitude.
    >
    >Ted Molczan
    >
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