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APPS offers 4 data processing modes, which are a combination of two data processing approaches:
Static and Kinematic, and two latency options: Near Real Time a
nd Most Accurate.
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Static data processing approach assumes that the GPS measurements were taken at a static si
te,
and will estimate a single set of coordinates for that site.
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Kinematic data processing approach assumes that the receiver (actually the antenna) could h
ave
been in motion on the ground or in the air, without any constraints about its speed or acceleration.
A time series of (antenna) coordinates is estimated at a rate equal to the measurement rate (default)
or at a slower rate (optional).
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Near Real Time processing will result in the quickest response from APPS, using the best GP
S orbit and
clock products available at the time of measurement upload:
- If the measurements are less than 1 day old, they will be processed using the real-time GPS orbit a
nd clock
products of the GDGPS System. These products have a
typical
User Range Error (URE) better than 8cm RMS.
- If the measurements are more than 1 day old, but are less than 1 week old, they will be processed w
ith JPL's
Rapid GPS orbit and clock products. These daily products have a typical URE of better than 5cm RMS.
- If the measurements are more than 1 week old, they will be processed with JPL's Final GPS orbit and
clock
products. These weekly and most accurate products have a typical URE of better than 3cm RMS.
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Most Accurate processing will wait up to one week in order to ensure processing with JPL's
most accurate
GPS orbit and clock products, which are produced weekly.
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