1. Turntable structure: adopts a "T" - shaped structure. The pitch axis adopts a "U" - shaped ring frame structure

2. Rotation range:

Orientation: Mechanical: ≥ -280o~+280 ° (from the center reference point)

Electric limit travel: ≥ -275o~+275 °

Height: Mechanical: ≥ -5 °~95o, Electrical Limit: ≥ -3 °~92o

3. Code disk zero point: has an absolute code disk zero point

4. Pointing accuracy (static): 10 "(24 sided measurement)

5. Repeatability: 3 inches

6. Horizontal and vertical axis angle shaking: ≤ 5 "

7. Angular position measurement resolution: 0.0001 °

8. Angular position measurement accuracy: ≤ 2 inches

9. Total weight of turntable: ≤ 330kg

10. Load bearing size: diameter>800mm, length>1514m (individual)

11. Load weight: ≥ 100kg

12. Limit: With dual protection of mechanical limit and electronic limit

13. Locking: a locking mechanism with azimuth and elevation

14. Maximum and minimum movement speeds in azimuth: ≥ 10 °/s, ≤ 1 ″/s

15. Maximum and minimum pitch motion speeds: ≥ 5 °/s, ≤ 1 ″/s

16. Maximum precision tracking speed in azimuth: ≥ 6 °/s

17. Maximum pitch accuracy tracking speed: ≥ 2 °/s

18. Maximum azimuth precision tracking acceleration: ≥ 1o/s2

19. Maximum pitch accuracy tracking acceleration: ≥ 1o/s2

20. Open loop guidance tracking error (RMS) for space targets:

Stars: Error<0.2 ″ within 10 seconds, Error<1.0 ″ within 10 minutes

Designated satellite orbit (full orbit): ＜ 3 ″

21. Within the range of precision tracking speed and acceleration, sinusoidal guidance (RMS): single axis ＜ 3 ″

22. Deviation correction:

Correct the tracking deviation and stabilize it within 2 ", with a time delay of less than 100ms (when the initial deviation is 100");

23. Control box size: 4U standard chassis

24. Appearance and Three Defense Requirements:

The overall color is black, and the surface should be continuous, uniform, and wear-resistant without paint peeling, corrosion-resistant, salt spray resistant, and moisture resistant

25. Thread hole:

The turntable needs to have threading holes (not less than 40mm in diameter) to ensure that all cables on the turntable cannot have external attachments;

26. Turntable outlet protection:

The holes at the pitch support arm and outlet of the turntable are protected by rubber

27. Zero mark:

Mark the zero position mark at the installation seat at the bottom of the turntable

28. Environmental adaptability:

Working temperature: -20 ° C to+40 ° C

Storage environment temperature: -30 ° C to+50 ° C

Other environmental requirements: corrosion resistance, salt spray resistance, moisture resistance, etc