delta II

The Iridium satellite constellation is a large group of satellites providing voice and data coverage to satellite phones, pagers and integrated transceivers over Earth's entire surface. Iridium Communications Inc. owns and operates the constellation and sells equipment and access to its services. It was originally developed in 1992, and subsequently implemented in October of 1999.

The Rossi X-ray Timing Explorer (RXTE) is a satellite that observes the time structure of astronomical X-ray sources, named after Bruno Rossi. The RXTE has three instruments—the Proportional Counter Array, the High-Energy X-ray Timing Experiment (HEXTE), and the All Sky Monitor. The RXTE observes X-rays from black holes, neutron stars, X-ray pulsars and X-ray bursts. It was funded as part of the Explorer program, and is sometimes also called Explorer 69.
RXTE was launched from Cape Canaveral on 30 December 1995 on a Delta rocket, has an International Designator of 1995-074A and a mass of 3200 kg.

 GeoLITE is an advanced technology demonstration satellite with a laser communications experiment and an operational UHF communications mission. The GeoLITE program also employs streamlined acquisition and design-to-cost methodologies to complete the satellite development, integration and launch. The satellite is based on a modular bus design with multi-mission capabilities.
The satellite was designed and built in 3 1/2 years using streamlined program methodologies by TRW Space & Electronics, Redondo Beach, a subsidiary of TRW, Inc. for the National Reconnaissance Office (NRO).
2001 May 18

A payload on the Aqua vehicle. 
Aqua (EOS PM-1) is a multi-national NASA scientific research satellite in orbit around the Earth, studying the precipitation, evaporation, and cycling of water. It is the second major component of the Earth Observing System (EOS) preceded by Terra (launched 1999) and followed by Aura (launched 2004).

The Wilkinson Microwave Anisotropy Probe (WMAP) – also known as the Microwave Anisotropy Probe (MAP), and Explorer 80 – is a spacecraft which measures differences in the temperature of the Big Bang's remnant radiant heat – the Cosmic Microwave Background Radiation – across the full sky.  Headed by Professor Charles L. Bennett, Johns Hopkins University, the mission was developed in a joint partnership between the NASA Goddard Space Flight Center and Princeton University.

The Advanced Research and Global Observation Satellite is part of the Air Force Space Test Program which develops future key technologies with space programs supporting the Air Force, Army, Navy, Ballistic Missile Defense Organization, NASA and various international space agencies.

Launch team for FUSE
The Far Ultraviolet Spectroscopic Explorer (FUSE) is a space-based telescope operated by the Johns Hopkins University Applied Physics Laboratory. FUSE was launched on a Delta II rocket on June 24, 1999, as a part of NASA's Origins program. FUSE detected light in the far ultraviolet portion of the electromagnetic spectrum, between 90.5-119.5 nanometres, which is mostly unobservable by other telescopes. Its primary mission was to characterize universal deuterium in an effort to learn about the stellar processing times of deuterium left over from the Big Bang. FUSE resides in a low Earth orbit, approximately 760 km (410 nmi) in altitude, with an inclination of 25 degrees and just less than a 100 minute orbital period. Its Explorer designation is Explorer 77.

ARGOS is a testbed and demonstration program for advanced remote sensing technologies for the US Air Force?s Space Test Program (STP). ARGOS's primary objective is to fly and operate advanced payloads that include two technology demonstrations and seven experiment payloads for global and celestial observation. http://www.pxi.com/Programs_Projects/ARGOS.html