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GPS Base Station Data

Tuesday, 10 August 2010 15:46 administrator
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GPS, DGPS and real-time DGPS

SOPAC is currently maintaining two GPS base stations in Suva, Fiji.

Real-time DGPS

The first base station is located at Tamavua and broadcasts a correction signal for GPS receivers with radio modem to allow real-time Differential GPS for the whole Suva peninsula. This station is set up on a ad-hoc basis.

Signal:

  • RTCM
  • UHF 467.5 MHz
  • 9600 bps, 8bits, no parity.

Base Station:

  • Fiji Geodetic 1986 coordinates and Fiji Map Grid (FMG) coordinates
  • Longitude: 178 26' 25.6109" E
  • Latitude: 18 06' 04.8570" S
  • Easting: 1967240.42
  • Northing: 3878098.62
  • Height: 148.966m above Mean Sea Level (MSL)
  • Del Norte 1009+

24/7 Base Station

The second base station is located on the roof of the Mineral Resources Department in Mead Road, Nabua. The coordinates of this base station (Trimble DSM212L) is based on WGS84 Datum.

SOPAC Base Station:

  • Longitude: 178 27' 11.90483 E
  • Latitude: 18 06' 54.86103" S
  • Height: 57.786m above Mean Sea Level (MSL)
  • Ellipsoid Height: 111.937m

However this station logs corrections files in ssf and rinex format together with the almanac and log of the base station. You can freely download the files to do DGPS post processing for most of the Fiji Islands.

We try to keep this station running 24/7 and we post scheduled downtime information on the mailing list GIS-Pacnet.

Notice: This service is experimental and has no warranty what so ever. If you run a ship on to the reef do not come to complain. The service can be interrupted and terminated at any time, for short or long periods. We are using spare survey equipment which is idle most of the year. However we are interested in your feedback to know if we should make it permanent. If you also plan a survey and need to ensure that the equipment is switched on, please contact us to avoid disappointments. We accept donations to maintain this service permanently.
Last Updated on Thursday, 27 January 2011 08:06  

Newsflash

A recent initiative could have a major influence on how Pacific Island countries deal with natural disasters. Pacific Disaster Risk Assessment is an ambitious 20-month-long project that has included the Pacific island countries of Fiji, the Cook Islands, Papua New Guinea, Samoa, Solomon Islands, Tonga, Tuvalu, Vanuatu, Niue, Nauru, the Federated States of Micronesia, Marshall Islands, Palau, Kiribati and Timor Leste.

It also involved a team of 15 researchers who began last February to gather information on the precise number of natural disasters that have taken place in each of the participating countries, based on records collected since 1830.

Earthquakes, tropical cyclones, tsunami, severe local storms, floods, storm surges, and landslides, totaling 448 natural disasters, all feature in the inventory. The research team also used the countries’ most recent census figures, key for estimating human casualties and displacement.