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Services
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Services & Subscriptions
Fugro Seastar AS provides several levels of service that are available by subscription.
Seastar G2:
Decimeter level phase based service, using orbit/clock data valid world wide, based on GPS and the Russian GLONASS.
Both the L1 and L2 frequencies in both systems are used to compensate for ionospheric delay.
The orbit/clock concept utilizes reference stations with a worldwide spread to calculate the orbit and the clock value of
each GPS nd GLONASS satellite more accurately than the broadcast ephemeris.
Orbit and clock corrections to the broadcast ephemeris are then transmitted to user.
These corrections are valid worldwide and the distance from the nearest reference stations to the user does not affect
performance.
More information
Seastar HP:
Decimeter level phase based service based on GPS L1 and L2 frequencies.
Seastar HP is a high accuracy service introduced in 2001. The service uses GPS phase measurement
to get an accuracy of 10 cm (95% Horizontal) and 15 cm (95% Vertical). It also produces very
accurate speed (cm/s).
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Seastar XP:
Decimeter level phase based service, using orbit/clock data valid world wide, based on GPS L1 and L2 frequencies.
This concept utilizes reference stations with a worldwide spread to calculate the orbit and the clock value of each GPS
satellite more accurately than the broadcast GPS ephemeris. Orbit and clock corrections to the broadcast ephemeris are
then transmitted to user. These corrections are valid worldwide and the distance from the nearest reference stations to
the user does not affect performance.
More information
Seastar DGNSS:
Meter level code based service based on GPS and GLONASS L1 frequency.
Differential GLONASS is used together with DGPS to increase the
number of available satellites in the navigation solution.
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Seastar L1:
Meter level code based service based on GPS L1 frequency.
Seastar L1 provides users with accurate positioning with a correction message further enhanced for their location.
This multiple reference station solution can provide accuracy to within one metre.
Seastar L1 provides consistent accuracy over wide areas.
More information
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