PBERRS, Version 5.0
by Clive Ruggles
This program calculates:
from a set of pairs of H scale readings on both faces. (N.B. In calculating the collimation error it is assumed that cos(alt) =1; thus it is not recommended that pointings more than about 10 degs from the horizontal be included.)
- collimation error
- maximum centring error
- plate bearing of zero centring error
- standard deviation of one observation
It is a batch program. The data must be provided in a file called DATA in the following format:
Vertical circle type on theodolite: v scale reading in degrees corresponding respectively to the following attitudes: horizontal face left; vertically up; horizontal face right; & vertically down.
Values of -90, 0, 90, 180 or 270 are permitted.
Observation details: reference, LH reading, RH reading
The reference is a three-figure number for the user's convenience
where the left and right face readings are expressed in degrees, minutes and seconds
LINE 3 etc
As line 2
A minimum of 4 and a maximum of 300 observations is allowed.
The TERMINATOR line must begin "000".
The output will be written into a file called RES, and will consist of
- collimation error, in arc seconds
- maximum centring error, in arc seconds
- PB of zero CE on H circle, in degrees, minutes & seconds
- SD of one observation, in arc seconds
Click here to download the program.
Click here to return to "DECPAK programs".
Author: Clive Ruggles