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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



Geo and heo weather satellites natural partners
1 PCW satellite, 24-h animation from 11 MTGmm channel (Modis 31) One satellite covers the Arctic domain ~75% of the time.


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