seastar

SeastarTM offers high performance positioning services, primarily to the offshore oil and gas industry. Our products and services are designed specifically to provide position reference for dynamic positioning systems and provide a precise, reliable, high-accuracy differential GNSS correction service optimised for DP safety critical applications requiring 24/7 availability and full redundancy under demanding conditions.

SeastarTM users include offshore support vessels, drilling ships and rigs, floating production units, shuttle tankers, service vessels and offshore loading vessels.

With over 30 years of satellite-based positioning experience and continuous research, we are able to offer market-leading innovations, quality and a wide range of services to the offshore dynamic positioning market.

Our most recent innovation is the SeastarTM G4 service, a combined GPS/GLONASS/BeiDou/Galileo positioning service that utilises PPP technology, calculating orbit and clock corrections individually for all satellites, taking ionospheric and tropospheric errors into account.

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Radio navigation systems depend upon effective receipt of signals, for a satellite-based system this means an unobstructed view of the satellites. However, when operating close to large structures, satellites can easily be obscured leading to reduced performance at critical times.

The ability to use a wide range of satellites gives more choice and therefore higher probability of a good position solution.

A choice of services are available ranging from the SeastarTM Standard L1 sub meter level, GPS only, single frequency service to one of Fugro’s innovative SeastarTM G4 service.

  • SeastarTM G2 - 10cm accuracy phase based service using orbit/clock data valid worldwide, based on GPS and GLONASS L1 and L2 frequencies.
  • SeastarTM G4 - Extension of G2 using the Chinese BeiDou system and ready for the European Galileo system. 
  • SeastarTM XP2 - Accuracy phase based service, using orbit/ clock data valid worldwide, based on GPS and GLONASS L1 and L2 frequencies. Independent of G2/G4. 
  • SeastarTM XP - Accuracy phase based service, using orbit/ clock data valid worldwide, based on GPS L1 and L2 frequencies.
  • SeastarTM SGG - Integrated DGPS/DGLONASS, sub metre level, code based service using orbit/clock data based on GPS and GLONASS L1 and L2 frequencies. 
  • SeastarTM Std. L1 - Sub metre level, code based service based on GPS L1 frequency (GLONASS optional).

SeastarTM DGNSS services are delivered over dual independent delivery paths. Reception is via a small dedicated omni-directional antenna or an existing, compatible Inmarsat system. This connection has no impact on use for normal two-way communications and does not affect equipment approvals.

To complement the standard satellite broadcast delivery channels, we offer our customers an alternative delivery of correction data using the NTRIP protocol as a backup. (Networked Transport of RTCM over Internet Protocol).

We deliver a first class service, safely and on time. Our positioning services are tailored to clients’ specific requirements and budgets. We offer:

  • Worldwide solutions, using a small omni-directional antenna or Inmarsat terminal
  • 24/7 worldwide support
  • Highest levels of signal reliability to ensure continuous signal reception
  • Independent augmentation solutions providing additional redundancy
  • Dual independent links in all Inmarsat ocean regions
  • Sub metre and decimetre level accuracy services
  • Unique purpose made L-band antenna for low elevation satellites
  • Global Navigation Satellite Systems (GNSS) capability using GPS, GLONASS, BeiDou and Galileo
  • Fugro Beams App for IOS and Android
  • Compatible with Kongsberg Seatex DPS/DARPS systems

Additional benefits - Beyond 70 degrees North 

SeastarTM high performance satellite navigation augmentation services can be delivered beyond normal coverage limits. The standard method of correction data delivery is by broadcast over the Fugro network of L-band geostationary communication satellites. This is an extremely reliable and robust system, but geostationary satellites located above the equator have a coverage footprint that is limited to around 70 deg North using standard spot beam antennas.

The combination of our unique purpose-made L-band antennas for low elevation satellites (AD493 receiving corrections up till 75 deg North) and our NTRIP solution delivered over VSAT ensures you get the corrections you need for maintaining reliable and safe operations in the Arctic.

The Fugro NTRIP (Network Transport of RTCM over Internet Protocol) service is available as a back-up method over data delivery for all users.

When you subscribe to SeastarTM services, you can be confident that your vessels or rigs have a reliable, stable, 24/7 supported and safe positioning service.

Contact Seastar

+47 21 50 14 00

Support

Support is provided 24/7, visit the Seastar support site for more information.
+47 21 50 14 20
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Contact Seastar

+47 21 50 14 00