Wind 1

Launch data:

Spacecraft data:

Mission details:

• Launched under the MELVS contract
  Wind is a spacecraft in the International Solar-Terrestrial Program (ISTP). It carried instruments to measure the solar wind plasma and magnetic field, besides several instruments to measure very energetic particles and gamma rays.
• Operates together with Polar
  After several orbits extending to close proximity of the Moon (at about 60 Earth-radii) and involving several thrust-firings during that phase, the spacecraft will eventually reach the first Lagrangian point (L-1) located at about 275 Earth-radii in the Sun-ward direction and orbit around that point. Orbital parameters are very variable even during the first two years.
• Provide complete plasma, energetic particle, and magnetic field input for magnetospheric and ionospheric studies.
• Telemetry: 2275.5 MHz (realtime: 5.56 kbps, playback: 32 or 64 kbps)
  Command: 2094.9 MHz (realtime: 250 kbps)