Size (mm)
Star body 2220×2200× 1720
The satellite span is 18096 after the solar wing is deployed.
The satellite height after antenna deployment is 57 13.
Mass (kg)
Separation weight of star and arrow 2266
Launched into geostationary orbit (early life) 1206
Satellite dry weight 946
Reliability of single satellite (after 8 years) 0.66
Long March 3A carrier rocket
Launch from xichang satellite launch center
Communication load
The communication antenna is in a communication device,
2.0m diameter double-grid sensitive counter
Multi-feed shaped beam antenna
Transmit (downlink) gain (db)
① The first service area includes Hainan and Taiwan Province Province.
In offshore and mainland service areas.
Medium power channel ≥27
Other channels ≥26.5
② The second service area includes Dongsha, Zhongsha,
Xisha and other coastal areas.
Antenna gain ≥ 18.5
First service area ≥27
Receive (uplink) gain (dB)
Four receivers, C-band, 500MHz bandwidth
Receiver with 2× 2:1backup.
Number of channels
Number of TWTA channels with final power amplifier of 16W (units) 6
Number of SSPA channels with final power amplifier of 8W 18
Last stage power amplifier backup
16W TWTA adopts 3×2 backup.
8W SSPA has no cold backup. Except for three domestic SSPA.
15∶ 12 backup is used outside the transponder.
Uplink frequency (MHz) 5925~6425
Downlink frequency (MHz) 3700~4200
EIRP
TWTA channel correspondence 16W ≥37
SSPA channel corresponds to 8W ≥33.5.
Polarization mode linear polarization
Follow in the footsteps of
The two repeaters consist of FM receiver and phase modulation.
Demodulation transponder composed of transmitter
telemetering
Modulation system pulse amplitude modulation/pulse coding/phase shift keying
channel capacity
Analog quantity (unit) 423
Number of digits in each format 3072 (bits/second) (*** 17 format)
Carrier frequency (MHz) 4 192, 37 10.
telemetering
Modulation system pulse code modulation/phase shift keying/frequency modulation
channel capacity
Analog quantity (unit) 423
The number of digits in each format (bits per second) is 4 192, 37 10 3072(* * * 17 format).
Carrier frequency (MHz) 4 192, 37 10.
remote control
Modulation Mode Pulse Code Modulation/Phase Shift Keying/Frequency Modulation
Instruction Capacity (Strips) 620
Carrier frequency (MHz) 5926,5941
Attitude and orbit control
Both stable mode transfer and stable orbit are triaxial stable.
Antenna pointing error (3 σ) ()
Spacing -+0. 15
Scroll -+0. 15
Yaw -+0.48
Position retention error (3 σ) (0)
South/North direction -+0. 1
East/west direction -+0. 1
carry forward
Combustion agent methyl hydrazine (MMH)
Oxidant oxidant dinitrogen tetroxide (MON- 1)
Propellant loading (kg) 13 17
Pressurized helium
10N propeller (platform) 14 is divided into two "semi-systems".
490N apogee engine (set) 1
Power?Supply?
The solar cell wing has two wings, and each wing has three plates.
Output power of solar array at the end of 8 years (w) 1688
Ni-Cd battery capacity (Ah) 2×45