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Eng ID Term Definition
1701
error: polarization
ERROR in a RADIO BEARING or the COURSE indicated by a RADIOBEACON, due to horizontally-polarized components of the electric field under cert... more
ERROR in a RADIO BEARING or the COURSE indicated by a RADIOBEACON, due to horizontally-polarized components of the electric field under certain transmission conditions. The terms night error or night effect have become obsolete.
1702
error: probable
An ERROR (or deviation from the mean) of such magnitude that the likelihood of its being exceeded in a set of OBSERVATIONS is equal to the l... more
An ERROR (or deviation from the mean) of such magnitude that the likelihood of its being exceeded in a set of OBSERVATIONS is equal to the likelihood of its not being exceeded; its value is that of the STANDARD ERROR multiplied by 0.6745. The use of STANDARD ERROR is sometimes preferred in statistical studies.
1703
error: random
See ERROR: ACCIDENTAL.
1704
error: regular
See ERROR: SYSTEMATIC.
1705
error: residual
The difference between any value of a quantity in a series of OBSERVATIONS, corrected for known SYSTEMATIC ERRORS, and the value of the quan... more
The difference between any value of a quantity in a series of OBSERVATIONS, corrected for known SYSTEMATIC ERRORS, and the value of the quantity obtained from the ADJUSTMENT of that series. Sometimes termed as residual.
1706
error: root mean square
See ERROR: STANDARD.
1707
error: sextant
The ERROR in the reading of a SEXTANT, due either to lack of proper ADJUSTMENT or to imperfection of manufacture.
1708
error: standard
The square root of the arithmetic mean of squared deviations from the mean. Also calledstandard deviation,when the deviations do not represe... more
The square root of the arithmetic mean of squared deviations from the mean. Also calledstandard deviation,when the deviations do not represent ERRORS, or root mean square error.
1709
error: station
See DEFLECTION OF THE VERTICAL.
1710
error: swirl
The additional ERROR in the reading of a MAGNETIC COMPASS during a turn, due to friction in the compass liquid.
1711
error: systematic
Component of measurement ERROR that remains constant or varies in a predictable manner. Also called regular error.
1712
error: theoretical
A SYSTEMATIC ERROR arising from natural physical conditions, beyond the control of the observer. Also called external error.
1713
error equation
See EQUATION.
1714
error of closure
The amount by which a quantity obtained by a series of related measurements differs from the true or fixed value of the same quantity. Also ... more
The amount by which a quantity obtained by a series of related measurements differs from the true or fixed value of the same quantity. Also called closing error.
1715
error of closure of horizon
The amount by which the sum of a series of adjacent measured horizontal angels around a point fails to equal exactly 360°.
1716
error of closure of triangle
The amount by which the sum of the three observed angles of a triangle fails to equal exactly 180° plus the SPHERICAL EXCESS of the triangl... more
The amount by which the sum of the three observed angles of a triangle fails to equal exactly 180° plus the SPHERICAL EXCESS of the triangle. Also referred to as closure of triangle.
1717
error of collimation
The angle between the LINE OF COLLIMATION (LINE OF SIGHT) of a TELESCOPE and its COLLIMATION AXIS; i.e., the angle by which the LINE OF SIGH... more
The angle between the LINE OF COLLIMATION (LINE OF SIGHT) of a TELESCOPE and its COLLIMATION AXIS; i.e., the angle by which the LINE OF SIGHT of an optical instrument differs from what it should be. Also called collimation error.
1718
error of graduation
Inaccuracy in the GRADUATIONS of the SCALE of an instrument. Also called graduation error.
1719
error of magnetic compass
The angle by which a compass direction differs from the true direction; the algebraic sum of VARIATION and DEVIATION.
1720
error of run (micrometer)
The difference in SECONDS of arc, between the intended value of one turn of the MICROMETER SCREW and its actual value as determined by measu... more
The difference in SECONDS of arc, between the intended value of one turn of the MICROMETER SCREW and its actual value as determined by measuring the space between two adjacent graduation marks of the CIRCLE with the MICROMETER. Also called run of micrometer.