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    Re: Group Project: USCG student sample problems
    From: Peter Hakel
    Date: 2013 Apr 16, 18:04 -0700
    This site:


    has info about NAVPAC.  This software requires Windows.

    Peter Hakel

    From: William Hawes <williamhawes@rogers.com>
    To: pmh099@yahoo.com
    Sent: Tuesday, April 16, 2013 2:35 PM
    Subject: [NavList] Re: Group Project: USCG student sample problems

    With respect to STELLA, please see attached file by John Bangert, USNO. It's a bit dated but does have some images that indicate that STELLA does celestial site reduction. Link is:
    I tried to obtain STELLA a couple of years ago but found that it was only available to DOD users (i.e. USN, USCG, etc). Has this policicy been changed?
    The RN equivalent software (NAVVPAC) is available for purchase from the UK HO authorized resellers. NAVPAC is featured as the primary site reduction method in the latest Admiralty Manual of Navigation Vol 2 (Astro Navigation, 10th Edition, 2010).

    On 16 Apr 2013 Frank Reed wrote:
    _________-<original message>________________
    Here's a new wrinkle in this:
    "I have used HO 249 personally but we teach sight reduction by STELLA, we only show them 229 and 249. We do not go over the math of those tables and how to use them."
    So they'll be operating under the assumption of a possible GPS outage but with electronics still functioning.
    Does anyone remember the specs on the "STELLA" software package? If it does the sight reduction, I would have thought that it does the almanac work, too. No?

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    Attached File:
    bangert.pdf (no preview available)

    : http://fer3.com/arc/m2.aspx?i=123583

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