HARDWARE / PRODUCTUpdated 24 Jul 2026

Two-degree-of-freedom Device for Antenna Pointing. Type 3

Glavkosmos
Two-degree-of-freedom Device for Antenna Pointing. Type 3

An electromechanical two-degree-of-freedom device designed for precise pointing of spacecraft antennas towards both mobile and immobile users.

Key figurescomparable across the catalogue

Mass
13 kg
Largest dimension
565 mm
Design life
5 years
Lead time
6 months
TRL
9

Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.

As published by the supplier

Purpose
Spacecraft antennas pointing to mobile and immobile users.
Year of release
1988
Design life
5 years
Lead time
6 months
Flight qualification of the product
Yes
Rotation angle for each axis
± 11.5 °
Slew rate
0.00016 – 0.083 °/min
Measurement error of the rotation angle for each axis
90 arcsec, not exceeding
Developed torque for each axis
50 N·m, not less than
Operating temperature range
± 50 °C
Active lifetime
5 years
Overall dimensions
565 × 500 × 210 mm, not exceeding
Mass
13 kg

About

The Two-degree-of-freedom Device for Antenna Pointing, Type 3, is an electromechanical system engineered for the precise orientation of antennas on spacecraft. Its primary purpose is to enable spacecraft antennas to accurately track and point towards various targets, including both mobile and immobile users. The device was released in 1988 and boasts a guaranteed service life of 5 years. It is flight qualified, ensuring its reliability and performance in the harsh space environment. Key features include a rotation angle of ±11.5° for each axis, a slew rate ranging from 0.00016 to 0.083 °/min, and a measurement error of the rotation angle not exceeding 90 arcsec. It can develop a torque of at least 50 N·m for each axis and operates within a temperature range of ±50 °С. The active lifetime is specified as 5 years, with overall dimensions not exceeding 565 x 500 x 210 mm and a mass of 13 kg.

Documentation

No public datasheet yet — request the datasheet / ICD from the supplier.

Source: trade.glavkosmos.com ↗

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