COLA Y2K bug

From: Matson, Robert (
Date: Thu May 25 2000 - 11:35:00 PDT

  • Next message: Alan Pickup: "Decay watch: 2000 May 25"

    Hi Wayne,
    > I've been trying to use Rob Matson's collision avoidance prediction
    > program cola.exe and cannot get past the last entry, which is "duration
    > of search (days)" - any number I put in give me the message "start date
    > is ****** past the epoch of the target satellite. ...
    There was a Y2K bug in that version as you surmised.  (Ted
    Molczan discovered this bug back in January, and Bjoern
    Gimle discovered a similar bug in ALLCOLA in March).  COLA
    was updated on 1/24 and sent to a few people, including Ed
    Cannon who I believe posted it on his site.  I'll be sending
    it and ALLCOLA to Mike McCants within the hour, so anyone
    running COLA with a creation date prior to 1/24/2000 or
    ALLCOLA with a creation date prior to 3/28/2000 needs to
    Sorry for the inconvenience,
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    This archive was generated by hypermail 2b29 : Thu May 25 2000 - 11:35:18 PDT