OPS 3811 (DSP 2)

NORAD 5204 · Payload · In orbit since 1971

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Launched: 1971-05-05 · Cape Canaveral / Kennedy, USA
Country / operator: US (United States)
Object type: Payload
Purpose: Early warning
Mass: 903 kg
Size: 6.9 × 2.8 m · 7.4 m deployed
Orbit class: GEO (geosynchronous)
Perigee × Apogee: 36,301 × 36,476 km
Inclination: 0.4°
Period: 1466.6 min
Eccentricity: 0.0020
Orbit data: Reconstructed from catalog orbit

Mass, size and purpose from GCAT (J. McDowell, CC BY 4.0).