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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Anomalous dip. was: [NAV-L] Testing pocket sextant.
From: Bill B
Date: 2006 Jun 16, 14:57 -0400
From: Bill B
Date: 2006 Jun 16, 14:57 -0400
Alex wrote: >> Sorry, I missed the fine print on upper- and lower-limb observation, as >> well as exactly what standard you were using to determine a negative result. >> (I still don't have an answer.) Bill replied: > I don't understand. What do you mean by a "standard"? Alex My question was, what are the negative numbers relative to? Does it mean that your Ho's are smaller than your Hc's, (Ho < than Hc, plot away from body). Or if subtracting Ho FROM Hc, that the Ho's are larger than the Hc's? Example: 30d (Ho) - 29d (Hc) = +1d 29d (Hc) - 30d (Ho) = -1d So without some reference or "standard," it was difficult for me to determine fit the observed angles were smaller or larger than the calculated angle. Sorry for the confusion, Bill
