Spectra-precision Survey Pro v4.6 Ranger Reference Manual Manuel d'utilisateur Page 169

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Survey Menu – Conventional Mode
R-161
Solar Observation
Survey Solar Observation.
The Solar Observation screen is used to compute the azimuth to an
arbitrary backsight based on the position of a celestial body; typically
the sun.
WARNING! Direct viewing of the sun without a proper
filter will cause serious eye damage. Pointing a total station
directly toward the sun without a solar filter can also damage the
EDM components.
Find Azimuth Using Ephemeris Data: select
this method if you plan to enter data from an
ephemeris.
Find Azimuth Using Date and Time: select
this method if you do not plan to use an
ephemeris.
Note: The fields within the Solar Observations
screen will vary depending on the method
selected above. All of the fields from each
method are described below.
: is a shortcut to the Date/Time Settings
screen (Page R-57).
Lat. / Long.: is the latit
ude and longitude of the
total station. These values can be scaled from a
map, such as a U.S.G.S. 7.5-minute quadrangle
sheet or collected with a handheld GPS unit.
Aim: selects the portion of the celestial body
that where you intend to aim. You can select
Left Edge of Center, Center, or Right Edge of
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