Clock Correction

Clock Correction

 

the difference between the exact time at any moment and the clock reading at that moment. A clock correction indicates the number of hours, minutes, seconds, and fractions of a second it is necessary to algebraically add to a clock reading in order to obtain the exact time. Clock correction can be found by reference to sidereal or mean solar time, either local, standard (zone), or universal. Calculation of clock correction is one of the basic problems of practical astronomy, and time services conduct routine astronomical observations to determine such corrections. The clock correction changes over the course of time; this change in the course of a single 24-hour period is called the diurnal clock rate.

References in periodicals archive ?
If the receiver board does not allow access to the raw ephemeris data, a less accurate clock correction is computed with a first order polynomial using time parameters obtained from the GPS almanac.
The high-accuracy HP solution uses more sophisticated data from these reference sites and XP uses satellite orbit and clock correction data which is independent of reference site location.
Customers who attend this intermediate level course will gain insight into utilizing the features of the RocketIO transceiver blocks, such as CRC, 8b/10b encoding, channel bonding, clock correction, and comma detection.