Welcome to the NavList Message Boards.

NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    or...
       
    Reply
    Re: GNSS is not immortal
    From: Steve Dunlop
    Date: 2018 Sep 25, 07:39 -0700

    Thanks for the fact check (and splitting my opening post).

    It is unclear to me why middle (or, for that matter, geosychronous) orbits would be immune to the effects of collisions resulting in a debris cloud. I would agree that it is farfetched to think that a LEO collision would result in enough pieces with sufficient energy to pose a risk to higher orbits.  But a collision could occur in a middle or geosynchronous orbit, leading to these orbits becoming unusable.

    In any case, there are other plausible threats to the GNSS constellations, as you point out.

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.
    Email:

    Email Settings

    Posting Code:

    Custom Index

    Subject:
    Author:
    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site