STAR*NET V6 - Circe

Appendix D Error and Warning Messages
Non-Determinant Solution - Check Network Design.
Degrees of Freedom are Less than Zero
There are not enough observations in your data to properly define the geometry of the
network or to perform an adjustment. The degrees of freedom (or number of redundant
observations) must be zero or greater. See Chapter 8, “Analysis of Adjustment Output”,
for a discussion of degrees of freedom.
Preanalysis Run has been Terminated
Coordinates for all stations must be entered prior to observation data
Coordinates were missing for station xxx
When running Preanalysis, all stations used in the observations must have coordinates
(fixed or approximate) supplied in the data file prior to the observation data.
Reassignment of Coordinate Values
You have entered “fixed” coordinates for a particular station more than once, and the
coordinate values are not the same causing a conflict.
Slope Distance Not Allowed in 2D Adj Using 3D Mode
A single observation “D” line defining a 3D slope distance has been entered into a 2D
adjustment. This kind of slope distance cannot be reduced to 2D because there is not a
zenith angle directly associated with it. This data line must be either removed from the
data, or the slope distance must be combined with a data line that includes a zenith angle.
Station Incorrectly Connected to Network: xxx
An adjustable station does not have enough observations taken to it to correctly connect
it to the network. In a 2D adjustment a station needs be connected by two horizontal
observations. In a 3D adjustment a station needs to be connected by two horizontal
observations plus a vertical observation. If the elevation is fixed on the 3D station, it then
needs only the horizontal observations. Likewise, if its horizontal coordinates are fixed,
only a vertical observation is required to correctly “connect” the station.
Two Fixed Stations Have the Same 2D Coordinates: xxx yyy
An observation is found having its two ends defined by two fixed stations having the
very same coordinate values. Coordinate values for each end of an observation must be
different, even if by a small amount. Check your data and make necessary corrections.
Also check to see why you have an observation between two fixed stations anyway.
Entering observations between fixed coordinates can cause problems!
Vertical Observations Not Allowed in 2D Data Mode
Single observation “V” data lines are not allowed within 2D data.
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