RE: Japanese First Military Sat

From: Barker, Jefferson (JBARKER) (JBARKER@arinc.com)
Date: Fri Mar 28 2003 - 17:30:47 EST

  • Next message: Björn Gimle: "KH"

    I have also seen the term "Revisit Time" and "Temporal Resolution"
    
    Jeff Barker
    
    -----Original Message-----
    From: Ted Molczan [mailto:molczan@rogers.com]
    Sent: Friday, March 28, 2003 6:54 AM
    To: SeeSat-L
    Subject: RE: Japansese First Military Sat
    
    
    Willie Koorts asked:
    
    > If I may ask a stupid question, I assume "sub-recurrent" 
    > refers to "return 
    > to the same point every 4 days".  Correct?  If not, can 
    > someone please explain a sub-recurrent orbit to me.
    
    Correct. 
    
    This was my first encounter with the term "sub-recurrent". The results of a
    google search suggest that the term is used almost exclusively by Japan to
    denote a ground track that repeats after some number of days. I am more
    familiar with the term resonant ground track.
    
    I found the following explanation of "sub-recurrent":
    
    http://www.eoc.nasda.go.jp/experience/rm_kiso/satellit_type_orbit_e.html
    
    Ted Molczan
    
    
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