Re: HP-41 Navigation PAC question



#2

Hi Dave,

no need to check the algorithms, you are totally right of course. The difference is just some tenths of an arc second. Which is what I originaly wanted to type but somehow I screwed it up.

I've just checked the values again using todays position of SIRIUS. Here is the result:

Position of SIRIUS for February 27th 2012 at 00:00:00.

NavPack Result:
GHA 258.5747° = 258° 34.48'
Dec -16.7372° = 16° 44.23' S

Almanach Result:
GHA 258° 34.5'
Dec 16° 44,0' S

So all well to within a quarter of an arcsecond...

Sorry for causing the confusion. Regards,
Timo


Possibly Related Threads...
Thread Author Replies Views Last Post
  Reasonable price for a 41C, Quad Mem, Time, Navigation and Card reader module? Eelco Rouw 10 696 12-12-2013, 01:52 AM
Last Post: Eelco Rouw
  HP-41(CL): The easiest way to transfer FOCAL programs from a Linux PC to the HP-41 Geir Isene 13 837 12-05-2013, 02:40 AM
Last Post: Hans Brueggemann
  HP67/97 M.E. Pac cover Ignacio Sánchez 2 239 11-22-2013, 04:04 AM
Last Post: Ignacio Sánchez Reig
  Converting Great Circle Navigation from 41C to 42S Bill Triplett 11 586 11-13-2013, 07:24 AM
Last Post: Kimberly Thompson
  request M.E. pac for HP-67/97 wallet cover scan Ignacio Sánchez 0 177 11-06-2013, 09:36 AM
Last Post: Ignacio Sánchez Reig
  Non-Prime question alert: Hp-41 and synthetic instructions Marcel Samek 11 598 11-04-2013, 09:31 PM
Last Post: sjthomas
  HP-67/97 Mechanical engineering PAC cover Ignacio Sánchez 0 169 10-30-2013, 04:35 AM
Last Post: Ignacio Sánchez Reig
  HP41 Navigation Pac Perpetual Alminac Dan Pfeiffer 2 220 09-03-2013, 07:39 PM
Last Post: Dan Pfeiffer
  For sale: HP 25C and Stat Pac 2 for HP 65 Michae Altmann 1 202 04-21-2013, 01:24 PM
Last Post: Raymond Del Tondo
  HP 41CX Survey Pac Keith Burr 7 411 03-29-2013, 10:09 AM
Last Post: Keith Burr

Forum Jump: