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Class: Earth. Type: Magnetosphere. Nation: Canada. Agency: CRC.

Ionospheric measurements; data correlated with measurements from Alouette 1.

Typical orbit: 963 x 2446 km, 88.2 deg inclinaton. Mass: 253 kg (557 lb). Associated Launch Vehicle: Delta E.

Isis Chronology

1969 January 30 - Isis 1 - Launch Site: Vandenberg. Launch Vehicle: Delta. Mass: 241 kg (531 lb). Perigee: 578 km (359 mi). Apogee: 3,458 km (2,148 mi). Inclination: 88.40 deg. Period: 127.60 min.
Ionospheric measurements; data correlated with measurements from Alouette 1. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

1971 April 1 - Isis 2 - Launch Site: Vandenberg. Launch Vehicle: Delta. Mass: 264 kg (582 lb). Perigee: 1,358 km (843 mi). Apogee: 1,424 km (884 mi). Inclination: 88.20 deg. Period: 113.60 min.
Ionospheric research. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

Bibliography:

McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: http://www.planet4589.org/jsr.html.
JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. Web Address when accessed: http://msl.jpl.nasa.gov/home.html.
McDowell, Jonathan, Launch Log, October 1998. Web Address when accessed: http://hea-www.harvard.edu/~jcm/space/log/launch.html.
NASA Report, Alouette-ISIS program summary, Web Address when accessed: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19880006813_1988006813.pdf.

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