Shuttle element FAQ

From: Matson, Robert (
Date: Thu Aug 23 2001 - 17:43:25 PDT

  • Next message: Stephen Irons: "Re: When does the orbiter significantly change its orbit?"

    Hi Walter and list,
    > x       for LVLH, is direction of motion
    > z       for LVLH, is toward Earth
    > y       for LVLH, is other dimension (which direction??)
    Given the above definitions of the x- and z-axes in LVLH, the
    +y axis points to starboard (right), the -y to port (left).
    > x       for M50 , is ??          vernal equinox ??
    Yes -- vernal equinox direction.
    > y       for M50 , is ??
    90-degrees counterclockwise from vernal equinox direction, as
    viewed from the north pole.
    > z       for M50 , is ??          North pole of equator ??
    Unsubscribe from SeeSat-L by sending a message with 'unsubscribe'
    in the SUBJECT to

    This archive was generated by hypermail 2b29 : Thu Aug 23 2001 - 17:46:22 PDT