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    Re: Sunset TOV Daytime Venus LOP by Camera
    From: Greg Rudzinski
    Date: 2012 Jun 6, 10:38 -0700

    The sunset TOV upper limb Sun measured to 1085 pixels = 1* 45.8' and reduced to an intercept of 1.1' away.

    [NavList] Sunset TOV Daytime Venus LOP by Camera
    From: Greg Rudzinski
    Date: 6 Jun 2012 08:13
    Obtaining a line of position using daytime Venus silhouetted by the Sun during a sunset TOV event became a possibility after looking at some of the TOV sunset images. The horizon to Venus pixel measurement required measuring on different exposure settings. Exposure was increased to show the horizon then decreased to show the Venus silhouette (see side by side images attached).

    Pixels : 919
    MOA/Pixel for 200 mm lens at small angles .0975'
    Hs = .0975(919) = 1* 29.6'
    UT 02:55:22 6/6/2012
    Lat. 34* 10.4' N
    Lon. 119* 14.1' W
    Height of eye 12 ft.

    Azimuth 297.1*
    Intercept 1.5' away

    This unique one of a kind celestial line of position was a very nice way to finish a special day :)

    Greg Rudzinski
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