GPS Satellites Launched, Stray Off Course

By George Backwell
Monday, August 25, 2014
Galileo GPS Configuration: Image ESA

Following an announcement made by Arianespace on the anomalies of the orbit injection of the Galileo satellites, the teams of industries and agencies involved in the early operations of the satellites are investigating the potential implications on the mission, says the European Space Agency (ESA).

Both satellites have been acquired and are safely controlled and operated from ESOC, ESA’s Operations Centre in Darmstadt, Germany.

Further information on the status of the satellites will be made available after the preliminary analysis of the situation.

Background
On August 22, 2014, at 9:27 am local time in French Guiana, a Soyuz ST rocket lifted off with the first two satellites in the Galileo constellation.

The liftoff and first part of the mission proceeded nominally, leading to release of the satellites according to the planned timetable, and reception of signals from the satellites. It was only a certain time after the separation of the satellites that the ongoing analysis of the data provided by the telemetry stations operated by the European Space Agency (ESA) and the French space agency CNES showed that the satellites were not in the expected orbit.

The targeted orbit was circular, inclined at 55 degrees with a semi major axis of 29,900 kilometers. The satellites are now in an elliptical orbit, with excentricity of 0.23, a semi major axis of 26,200 km and inclined at 49.8 degrees.

Both the Fregat upper stage and the two satellites are in a stable condition and position that entails absolutely no risk for people on the ground. The residual propellants on the Fregat stage have been purged and the stage was depressurized normally.

According to the initial analyses, an anomaly is thought to have occurred during the flight phase involving the Fregat upper stage, causing the satellites to be injected into a non-compliant orbit.

 

Maritime Reporter April 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

5th Floating Accommodation for Lerwick

A further accommodation ship, Ocean Atlantic, is due at Lerwick on Monday 27 April 2015 and is on its way from Portland in Dorset. As with the other floating accommodation at the port,

Double Order for Super Gloria Reachstacker

Kalmar, part of Cargotec, has gained an order for two Super Gloria reachstackers from Tadarsa Logistics S.L. in Aviles, Spain. The largest reachstackers ever built,

BIMCO Welcomes EU Decision on Migrants

BIMCO has stated today that it appreciates the new efforts by EU leaders to reduce increasing reliance on merchant shipping to rescue the growing numbers of

Technology

Goliat FPSO in Norway

The Goliat FPSO was successfully floated off the heavy-lift vessel, Dockwise Vanguard, in the fjord outside Hammerfest, says Eni Norge    The Goliat platform has arrived in Hammerfest,

OSV Technology: Notable Designs & Deliveries

Though the market for Offshore Support Vessels (OSVs) is soft, advances in technology, fit and finish in  the sector is unrivaled in any other maritime niche over the past five years.

Gondan Lays Keef for IMR Oceanographic Vessel

Gondan Shipyard has celebrated at its facilities in Figueras the keel laying ceremony of the new Oceanographic Research Vessel for the Institute of Marine Research (IMR) of Bergen, Norway.

Contracts

Double Order for Super Gloria Reachstacker

Kalmar, part of Cargotec, has gained an order for two Super Gloria reachstackers from Tadarsa Logistics S.L. in Aviles, Spain. The largest reachstackers ever built,

Algoma Central Orders New Great Lakes Ships

Algoma Central Corporation announces $160 million investment in fleet expansion and fleet renewal   Algoma Central Corporation announced that it has acquired

Russia, France Close to Deal on Mistrals

Russia and France are close to reaching an agreement for Paris to cancel a frozen contract on the sale of Mistral helicopter carriers and reimburse Moscow, a Russian

Government Update

Judge Orders Migrant Boat to Remain in Custody

An Italian judge on Friday ordered that the presumed captain of a migrant boat that sank with the loss of more than 700 lives should remain in custody after prosecutors

Iran Moves Ships, Reducing Tensions Near Yemen

A flotilla of nine Iranian military and cargo ships that U.S. officials feared was carrying arms to strife-torn Yemen sailed northeast in the direction of Iran on Friday,

Rescue Ships Head for Libya, as Migrants Die Also in Balkans

British and German warships made ready to sail for waters off Libya as Europe ramped up rescue operations in the Mediterranean after up to 900 desperate migrants

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Naval Architecture Navigation Ship Electronics Ship Repair Ship Simulators Shipbuilding / Vessel Construction Sonar Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1327 sec (8 req/sec)