Veripos Standard GLONASS service is an extension of the Veripos Standard service and provides users in the positioning and navigation market access to GLONASS differential corrections. Through the utilisation of two GNSS constellations (GPS and GLONASS), the user can expect more robust positioning during periods of local masking, scintillation or poor GPS geometry.
Description
GLONASS is an independent GNSS system that offers a significant increase in redundant GNSS observations available to the user. This can provide more robust positioning when used in conjunction with other GNSS systems such as GPS. The design constellation for GLONASS is 24 satellites which are configured into three orbital planes inclined at 64.8 degrees to the equator. At present, GLONASS is not operating at the full design constellation but does have enough available satellites to operate as an augmentation the GPS constellation.
The Veripos Standard GLONASS service is designed to be used as an augmentation that is used in conjunction with the VERIPOS Standard service. When using both GPS and GLONASS, the Standard service provides metre level position accuracy, although accuracy will vary depending upon the users’ distance from the reference stations and also how many stations are being used in the position solution.
Correction Message Format
Corrections for the Veripos Standard GLONASS service are transmitted in the standard RTCM SC-104 format (version 2.3) to ensure compatibility with user hardware and software. The messages types transmitted are Type 31 (differential GLONASS corrections) and Type 32 (reference station coordinates).
