Spectra-precision Survey Pro v4.6 Recon and Nomad User Manual Manuel d'utilisateur Page 165

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Other Tutorials
155
Performing a Sun Shot
1. Setup over a point with known or assumed coordinates and aim
the total station at the backsight point to which you will
determine the azimuth.
2. From the Main Menu
, select .Survey , Solar Observation .
3. A dialog will open asking you to select an observation
method and tap
. For this example we will select
the Find Azimuth Using Ephemeris Data option since it
contains a couple additional steps.
4. Enter the latitude and longitude for your occupy
point in the Lat. and Long. fields, respectively.
Note: Your latitude and longitude should have enough
accuracy if it is scaled from a topographic map or
measured using a handheld GPS unit.
5. In the Aim field, select the area of the celestial body
where you plan to take your measurements. For sun
shots, the trailing edge is usually used. (The left edge
when in the northern hemisphere.)
6. Tap the Corrections… button if the correction
settings displayed to the right of the button need to
be changed.
If performing a sun shot, check the Non-Linear Declination
Correction checkbox. (Leave it unchecked for star shots.)
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