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GEO and HEO weather satellites: natural partners. Sixth GOES User’s Conference Madison, WI November 3-5, 2009 Louis Garand (EC) and PCW U&ST. 2-sat constellation in Molniya Orbit = continuous views over one pole. 2 satellites to provide continuous GEO-like imagery 50-90 N 0.5-1 km VIS

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Geo and heo weather satellites natural partners

GEO and HEO weather satellites: natural partners

Sixth GOES User’s Conference

Madison, WI

November 3-5, 2009

Louis Garand (EC) and PCW U&ST


2 sat constellation in molniya orbit continuous views over one pole
2-sat constellation in Molniya Orbit = continuous views over one pole

2 satellites to provide

continuous GEO-like

imagery 50-90 N

0.5-1 km VIS

2 km IR

12-h period

63.4 deg. inclination

Apogee: ~39,500 km

Perigee: ~600 km


Canada s polar communications and weather pcw dual objectives
Canada’s Polar Communications and Weather (PCW): Dual Objectives

  • Reliable communications in the high latitudes (North of 70º) to ensure:

    • Security

    • Sustainable Development

    • Support to Northern Communities

    • Air and Marine Navigation

    • Arctic Science

  • Provide high temporal/spatial resolution meteorological data above 50º N in support of:

    • Numerical Weather Prediction (short to medium range)

    • Environmental monitoring, emergency response

    • Climate monitoring

PCW to have an operational status linked to NRT meteorology

Launch target: 2016


Area of interest
Area of Interest Objectives

Meteorological Coverage Requirement (50ºN)

Meteorological Coverage Goal (45ºN)

Communications Coverage Requirement

Meteo requirement pertains to the entire circumpolar domain



1 PCW satellite, 24-h animation from 11 MTGmm channel (Modis 31) One satellite covers the Arctic domain ~75% of the time.


2 sats, 1 plane 24-h simulation, 15 min intervals, Modis ch 28 (7.3 mm), 10 km. Red area: view angles > 70 deg.



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