One nm is one minute of arc in latitude. In longitude it is minutes * cos latitude. The time error in astro-navigation shows up in the definition of the body's sub-point on the earth.
John Weller 01380 723235 07976 393631 > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Andy Davies > Sent: 11 April 2007 11:38 > To: [EMAIL PROTECTED] > Subject: Re: [NF] Dimension 4 > > > > what would be the error in distance if the time is off > > by 1 second ? > > well iirc one nautical mile is 1 minute of arc, so 1/60th nautical mile > <types 1 nautical mile as yards into Firefox> - say 33.7562 yards > > Andrew Davies MBCS CITP > - AndyD 8-)# > > > ********************************************************************** > > This email and any files transmitted with it are confidential and > intended solely for the use of the individual or entity to whom > they are addressed. If you have received this email in error > please notify the system manager. > > This footnote also confirms that this email message has been > swept by MIMEsweeper for the presence of computer viruses. > > Please contact [EMAIL PROTECTED] with any queries. > > ********************************************************************** > > > [excessive quoting removed by server] _______________________________________________ Post Messages to: ProFox@leafe.com Subscription Maintenance: http://leafe.com/mailman/listinfo/profox OT-free version of this list: http://leafe.com/mailman/listinfo/profoxtech Searchable Archive: http://leafe.com/archives/search/profox This message: http://leafe.com/archives/byMID/profox/[EMAIL PROTECTED] ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.
