Skip to content
79,433 pages · 13,741 images · since 1994 Browse A–Z Today in space history
Encyclopedia Astronautica The full story of spaceflight
Encyclopedia entry

Eagle

Spacecraft · USA

Original archive entry. The text, images and links below are kept as they were written.

STEP 1
STEP 1
Credit: Manufacturer Image

American military strategic defense satellite. Technology satellite built by Orbital Sciences Corporation (OSC) => Orbital ATK for AFRL, USA. Used Eagle-Bus ESPA (ESPAStar).

More at: Eagle.

Country
USA
Spacecraft
STEP
Agency
USAF
Bibliography
2, 4, 5, 6, 12290, 12291, 12292

Chronology

3 events

1994 May 19

17:03 GMT - . Launch Site: Point Arguello. Launch Complex: Point Arguello WADZ. Launch Pad: Aircraft from Edwards.. Launch Platform: NB-52 008. LV Family: Pegasus. Launch Vehicle: Pegasus/HAPS.
  • STEP 2 (SIDEX) - . Payload: STEP M2 / P 91-A. Mass: 180 kg (390 lb). Nation: USA. Agency: USAF STP. Program: STEP. Class: Military. Type: Strategic defense satellite. Spacecraft: Eagle. USAF Sat Cat: 23105 . COSPAR: 1994-029A. Apogee: 813 km (505 mi). Perigee: 597 km (370 mi). Inclination: 82.00 deg. Period: 98.90 min. Did not achieve planned orbit, though still useful. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). Air dropped in Point Arguello WADZ..

1994 June 27

21:15 GMT - . Launch Site: Point Arguello. Launch Complex: Point Arguello WADZ. Launch Pad: Aircraft from Vandenberg.. Launch Platform: L-1011. LV Family: Pegasus. Launch Vehicle: Pegasus XL. FAILURE: Destroyed on launch . Failed Stage: 1.
  • STEP 1 - . Payload: STEP M1 / P90-1. Mass: 180 kg (390 lb). Nation: USA. Agency: OSC. Program: STEP. Class: Military. Type: Strategic defense satellite. Spacecraft: Eagle. Apogee: 38 km (23 mi). Destroyed on launch Air dropped in Point Arguello WADZ..

1997 October 22

13:13 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island DZ. Launch Pad: RW04/22. Launch Platform: L-1011. LV Family: Pegasus. Launch Vehicle: Pegasus XL.
  • STEP-4 - . Payload: STEP M4. Mass: 180 kg (390 lb). Nation: USA. Agency: USAF STP. Program: STEP. Class: Military. Type: Strategic defense satellite. Spacecraft: Eagle. Decay Date: 2001-03-31 . USAF Sat Cat: 25013 . COSPAR: 1997-063A. Apogee: 500 km (310 mi). Perigee: 432 km (268 mi). Inclination: 45.00 deg. Period: 93.80 min. Air dropped in Wallops Island DZ..