Requirements & Guidelines:

• Only RINEX (RINEX2, RINEX3, RINEX4, Compact RINEX) observables are supported
• Consider using RTools service for converting UBLOX UBX logs to RINEX
• Rover data file could be both static and/or kinematic
• It is recommended to provide at least 60 minutes of observations
• At least 30 min of static is required before kinematic part begins
• Data file must contain at least dual frequency pseudorange and carrier phase observations
• PENTAP finds the best available precise SP3 product automatically
• Accuracy of SP3 (receiver positions accuracy in turn) strongly depends on product type (FINAL, RAPID or ULTRA-RAPID)
• The best accuracy is achieved if FINAL SP3 product is used. It is available w/ delay about 1 week
• Somehow fine accuracy may be get w/ RAPID orbits & clocks product (delay about 1 day)
• The worst case is ULTRA-RAPID product available w/ delay of few hours (worst accuracy)
• Running PENTAP on data collected 'now' may lead to accuracy degradation or even unability to compute positions if even ULTRA-RAPID product is not yet available
• Data collected 'today' better to be processed 'tomorrow' when at least RAPID orbits & clocks are available