Archives: Glossary Terms: 691 terms

DSN's high-efficiency 34-m DSS, replaces STD DSSs.

Sun-centered.

The boundary theorized to be roughly circular or teardrop-shaped, marking the edge of the sun's influence, perhaps 100 AU from ...

The space within the boundary of the heliopause containing the Sun and the Solar System.

High-electron-mobility transistor, a low-noise amplifier used in DSN.

High-Gain Antenna onboard a spacecraft.

A plot of the number of pixels in an image at each brightness level. It's a useful tool for determining ...

Interplanetary trajectory using the least amount of propulsive energy. See Chapter 4.

The line marking the apparent junction of Earth and sky.

The horizontal coordinate system, also known as the Alt/Az system, is a method for describing the exact position of objects ...