Advanced Surveying, Volume 2 |
Contents
Urbana Illinois | 1 |
The Probable Error | 3 |
Calculation of the Probable Error | 4 |
Copyright | |
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Common terms and phrases
accuracy accurate adjusted alidade altitude azimuth Azimuth of Polaris benchmark bubble camera celestial equator celestial sphere chorobates circle circuit civil closing error computed contour contour line correction cross-hair determined difference in elevation direction distance drawn elongation Ephemeris equator field fixed float formula gage Geodetic Survey given Greenwich grid hence hour angle instrument interval latitude line of sight located longitude mark means measured method object observed perspective view photograph picture plane plane coordinates plate plotted Polaris pole position probable error procedure projection rating curve respect right ascension scale sextant shown in Fig sidereal stadia star station stream stream bed sun's surface tangent tape telescope templets tion transit Transverse Mercator Projection traverse triangle U. S. Coast U. S. Geological Survey upper culmination velocity vernal equinox vernier vertical angle weir