The main facilities of Usuda Deep Space Center are a 64m-diameter parabolic antenna, an S-band and X-band transceiver system, a hydrogen maser standard frequency clock, a satellite control center, and a station operation control center
64m Parabolic Antenna
Faint radio signals from explorers are collected by the 64m parabolic antenna. The signals are then reflected by the sub-reflector protruding from the main reflector and led via beam transmitter to the antenna room, where they are amplified by a low-noise amplifier. Radio waves carrying command signals to operate explorers and ranging signals to measure the distance to explorers are amplified with the power amplifier and then transmitted from the antenna.
Main Reflector Panels
The main reflector's parabolic surface is composed of 11 types of panels with different curvature, made of aluminum plate 3mm thick, 1.3m wide and 2.8m long. The total number of panels used is 1,152, making an area of 3,350m2.
Elevation Angle (E1) Rotator
In this building, optical signals (converted from spacecraft radio signals) are demodulated to obtain observational and spacecraft-monitoring data and to extract ranging signals for measuring distance to spacecraft. The data are transmitted via communication network to researchers in the control center in Sagamihara.
Command data for spacecraft and operational data for ground equipment at Usuda Deep Space Center are transmitted to this building from the control center at Sagamihara via communication network.