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Indian regional satnav defined
30/09/2014

The Indian Regional Navigation Satellite System (IRNSS) is an independent regional navigation satellite system.

World Maritime Day
25/09/2014

Today, 25 September, is World Maritime Day 2014 - this year concentrating on 'IMO conventions: effective implementation'.

The autumnal equinox
23/09/2014

The Sun crossed the celestial equator passing south at 0229 UTC today, 23 September - the autumnal equinox for the N hemisphere.

Lockheed lose over GPS III delay
20/09/2014

Lockheed Martin has been paid only 62% of its eligible award due to a 2-year delay in delivering the first satellites.

Vulcan commemorative flight
19/09/2014

On 25 September, the last remaining V-bomber will fly over each of the 10 RAF stations where the V-Force was based.

GSA and Eurocontrol cooperation
17/09/2014

The European GNSS Agency (GSA) and Eurocontrol plan to enhance aviation safety and management through EGNOS and Galileo.

Indian regional satnav defined

ISRO2.jpg

The Indian Regional Navigation Satellite System (IRNSS) is an independent regional navigation satellite system.

It is designed to provide accurate position information service to users in India as well as the region extending up to 1,500 km from its boundary.

IRNSS will provide 2 types of services:
- Standard Positioning Service (SPS)
- Restricted Service (RS)
and is expected to provide a position accuracy of better than 20 m in the primary service area.

The system ultimately will comprise 7 satellites. Two have been launched to date - 1A on 1 July 2013 and 1B on 4 April 2014.

The IRNSS Signal-in-Space Interface Control Document (ICD) for the SPS has been released by the Indian Space Resource Organisation (ISRO) to provide essential information on the signal-in-space. It can be downloaded from the link below.

IRNSS is completely separate from India's Satellite Based Augmentation System (SBAS) - GPS-Aided GEO Augmented Navigation (GAGAN).

Details from ISRO below . .


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