(meteorobs) Correction to previous Trig.calculation.

[stange34 at sbcglobal.net]

Yes, thankyou Thomas.

The degree compression at low horizons of mirrors is only estimated for now.
Actual triangulation may show a need to build a semi-log scale. Meanwhile, a 
method of calibration is being pursued by me using planet/star positions in 
mirror vision style for those kinds of systems.

Larry

----- Original Message ----- 
From: "Thomas Dorman" <drygulch_99 at yahoo.com>
To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
Sent: 2007/09/18 20:31
Subject: Re: (meteorobs) Correction to previous Trig.calculation.


> Hi.
> One other issue is the image you are using was taken
> from a mirror camera system,I know this camera system
> and the image is not linear but non-linear.Basically
> the image is compressed as you move from the center of
> the image to the horizon.This make it hard to figure
> elevation from the image.That is if you have not taken
> this issue with this system in to account.
> Regards
> Thomas Dorman
> Horizon City,Texas
> --- stange34 at sbcglobal.net wrote:
>
>> Camera vision design of New Mexico system has West
>> to the Left & East to the Right.
>>
>> Path of meteor has been corrected to reflect that on
>> prior posted URL.
>>
>> YCSentinel
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