BLOG.NAVIGATION-SPREADSHEETS.COM: Recent Comments

Comment on Summer solstice 2011 (northern hemisphere)

gisela - from supercuts — Wed, 22 Jun 2011 14:34:58 GMT

hello - that explains how they pin down the exact time of day!

Comment on Lunar occultation of Aldebaran

P H — Mon, 23 May 2011 03:27:28 GMT

More detailed and accurate detective work regarding this "puzzle" is presented in this posting by "FER" on NavList, an excellent discussion platform for all things pertaining to celestial navigation:

http://www.fer3.com/arc/m2.aspx?i=116397

Comment on Sight reduction of a Moon observation

P H — Fri, 31 Dec 2010 20:02:40 GMT

The Moon spreadsheet is a free download; the intercept one is available as part of the entire suite for a small fee at:
http://www.payloadz.com/go/sip?id=600846
You can also get to this link via the main site:
http://www.navigation-spreadsheets.com/

Comment on Sight reduction of a Moon observation

Steve — Fri, 31 Dec 2010 05:07:09 GMT

Thanks! I see the link for moon.xls, but I can't find intercept.xls Am I missing it?

Comment on Sight reduction of a Moon observation

P H — Thu, 30 Dec 2010 06:42:10 GMT

Yes, you can use the spreadsheets moon.xls and intercept.xls for that purpose. The former will give you Moon's GP for a given time, the latter the azimuth and elevation for your chosen AP (assumed position). The azimuth is in cell F6, don't worry about the Ho input in E2. The computed altitude Hc in cells A6-C6 may be good enough depending on the application. For higher accuracy you would correct it for parallax and refraction. This would require a spreadsheet inverse to alt_corr.xls which already exists and will be included in the next set to be added to the suite very soon.

Comment on Sight reduction of a Moon observation

Steve — Wed, 29 Dec 2010 18:46:25 GMT

Hi, Cool spreadsheets. Is there a way to get the azimuth and elevation of the moon for the day/time entered? I know you'd need the observer's lat/lon...
Thanks!

Comment on Customizing the suite

P H — Mon, 10 May 2010 05:53:08 GMT

In the demos I used Mariner Calc on an iTouch but now I use Quicksheet (member of Quickoffice) on an iPhone.

Comment on Customizing the suite

Steve — Sun, 09 May 2010 18:52:29 GMT

I am aiming to run the spreadsheets in my iPod Touch as per the YouTube video. What spreadsheet App would you suggest? Thx