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.
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.
We introduced Kalman filter (Strang and Borre, 1997) in the final phase of data processing for dynamic recursive estimation of set of unknown parameters--site coordinates, correction to initial ambiguities and actual receiver clock correction.
Besides the static site coordinates are computed also the real-valued corrections to initial ambiguities, troposphere zenith delays for selected time intervals (usually 1 or 2 hours) and receiver clock corrections.
The object of the activity is to design develop and validate/verified a GNSS space receiver capable to perform on board precise orbit determination (P2OD) in real time using precise GNSS orbit and clock corrections provided either by Geostationary satellites (thus allowing on board autonomy w.
Clock corrections are given as offsets to the Broadcast Ephemeris satellite clock corrections (http://igs.
Furthermore Hadas and Bosy (2014) stated that estimation of GLONASS clock corrections require further development.
Satellite antenna phase center offsets were not corrected because the applied orbit and clock corrections are referred to the satellite's antenna phase center.
The StarFire system uses a network of more than 50 GPS reference stations around the world to compute GPS-satellite orbit and clock corrections.
The examples are: single-station, single-epoch, single-satellite GNSS observations; single-epoch, single-satellite GNSS navigation message; single-epoch, single-satellite orbit and clock corrections etc.
Station coordinates and receiver clock corrections were designed as stochastic processes driven by white noise.
01 for GNSS observations and broadcast ephemerides, the CLK-RINEX format for precise clock corrections and the SP3 format for precise orbit products are supported as input for the post-processing.