Archives: Glossary Terms: 691 terms

DSN's DSCC Transmitter assembly.

Ultra-high frequency (around 300MHz).

Ulysses spacecraft.

Electromagnetic radiation at wavelengths shorter than the violet end of visible light. The atmosphere of the Earth effectively blocks the ...

The area of total darkness in the shadow caused by an eclipse.

A device for aiming your telescope that shows the sky as it appears to your unaided eye, without magnification. The ...

Also called Greenwich Mean Time, expressed in the 24-hour system. For example, 2300 UT is 700 p.m. Eastern Daylight Time ...

All of space and time, and everything in it. It's everything ever!

The DSN Uplink Tracking & Command subsystem.

Signal sent to a spacecraft.