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Kwajalein DZ

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Longitude: 167.70 deg. Latitude: 7.65 deg.

• HETE-2 - . Mass: 130 kg (280 lb). Nation: USA. Agency: NASA Greenbelt. Manufacturer: MIT. Class: Astronomy. Type: X-ray astronomy satellite. Spacecraft: HETE. USAF Sat Cat: 26561 . COSPAR: 2000-061A. Apogee: 641 km (399 mi). Perigee: 598 km (372 mi). Inclination: 1.95 deg. Period: 97.02 min.

  First orbital launch from Kwajalein. Second High Energy Transient Explorer; built by MIT using leftover parts from the first HETE. This failed to operate because of a Pegasus adapter failure during launch in November 1996. MIT operates the satellite, while the program is managed by NASA GSFC as an Explorer mission of opportunity. HETE's main instrument is FREGATE, the French Gamma Telescope, a hard X-ray spectrometer operating in the 6 to 400 keV energy range. This gamma ray burst detector, together with a Wide Field X-ray Monitor hard X-ray coded mask telescope, is used to trigger searches with the two Soft X-ray Imagers which have 33-arcsecond spatial resolution. This will let astronomers get precise locations for gamma-ray bursts, allowing detailed follow-up with optical instruments. The satellite is in a 595 x 636 km x 2.0 deg equatorial orbit, and sends data to a network of small ground terminals spaced around the equator. Air dropped in Kwajalein DZ.

• IBEX - . Mass: 107 kg (235 lb). Nation: USA. Agency: NASA. Manufacturer: OSC. Class: Astronomy. Type: X-ray astronomy satellite. Spacecraft: Microstar. USAF Sat Cat: 33401 . COSPAR: 2008-051A. Apogee: 281,252 km (174,761 mi). Perigee: 69,563 km (43,224 mi). Inclination: 19.23 deg. Period: 12,855.81 min. Interstellar Boundary Explorer. Mission was to map, from its high earth orbit, the boundary of the heliosphere, the point at the limits of the solar system where the solar wind is overcome by the interstellar medium. Air dropped in Kwajalein DZ..

• Nustar - . Payload: Leostar. Mass: 360 kg (790 lb). Nation: USA. Class: Astronomy. Type: X-ray astronomy satellite. Spacecraft: SA-200. USAF Sat Cat: 38358 . COSPAR: 2012-031A. Apogee: 632 km (392 mi). Perigee: 614 km (381 mi). Inclination: 6.00 deg. Period: 97.20 min. Hard X-ray observatory with ten-meter mast. Air dropped in Kwajalein Drop Zone..