Spectra Precision Survey Pro v4.5 Ranger Reference Manual - Manual (Page 165)

Survey Menu – Conventional Mode
R-157
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-54).
Lat. / Long.: is the latitude 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