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Dodecapole 1, 2 (Porcupine 1, 2)

Dodecapole 1 (booms not extended)

Dodecapole 1 (booms extended)

The Dodecapole satellites, also known as Dodecahedron or Porcupine, were small passive radar calibration satellites built by the Naval Research Laboratory (NRL) for the need for a large target satellite for Space Surveillance System calibration.

Each object is a 26 cm sphere with 12 telescoping hollow rods erected in orbit normal to the faces of an equivalent regular dodecahedron. Each rod is 1.27 cm in diameter and 7.62 m long.

Nation: USA
Type / Application: Calibration
Operator: Naval Research Laboratory (NRL)
Contractors: Naval Research Laboratory (NRL)
Propulsion: None
Orbit: 906 km × 940 km, 70.07 (#1); 1085 km × 1190 km, 90.03 (#2)
Satellite COSPAR Date LS Launch Vehicle Remarks
Dodecapole 1 (Porcupine 1) 1965-016H 09.03.1965 Va 75-1-2 Thor-DM21 Agena-D with Poppy 6A (Solrad 7B), Poppy 6B, Poppy 6C (GGSE 2), Poppy 6D (GGSE 3), SECOR 3, Surcal 4, OSCAR 3
Dodecapole 2 (Porcupine 2) 1965-065C 13.08.1965 Va 75-1-1 Thor-DSV2A Able-Star with Transit-O 5, Long Rod, Tempsat 1, Calsphere 2, Surcal 5