OVS 1A
| OVS 1A Zhuhai-1 01A CAS-4A |
|
|---|---|
| Type: |
Earth observation satellite amateur radio satellite |
| Country: |
 People's Republic of China
|
| Operator: | Zhuhai Orbita Control Engineering Ltd. CAMSAT |
| COSPAR-ID : | 2017-034D |
| Mission dates | |
| Dimensions: | approx. 50 kg |
| Size: | 494 mm × 499 mm × 630 mm |
| Begin: | June 15, 2017, 03:15 UTC |
| Starting place: | Jiuquan Cosmodrome |
| Launcher: | Long March 4 |
| Orbit data | |
| Rotation time : | 95.4 minutes |
| Orbit inclination : | 43.0 ° |
| Apogee height : | 554 km |
| Perigee height : | 535 km |
OVS 1A , also known as Zhuhai-1 01A or CAS-4A , is the first satellite in the commercial Chinese earth observation constellation Zhuhai-1 . The operator of the constellation is Zhuhai Orbita Control Engineering Co. Ltd. in the southern Chinese province of Guangdong . The satellite also carries an amateur radio payload .
function
OVS 1A is used to record high resolution videos from orbit. The spatial resolution of the videos is 1.98 m with an average orbit height of 530 km. The coverage covers an area of 8.1 km × 6.1 km.
The CAS-4A amateur radio payload was developed by the Chinese amateur radio satellite group, CAMSAT. CAS stands for Chinese amateur radio satellite. The amateur radio payload consists of a U / V linear transponder , a CW telemetry signal and a digital telemetry channel.
mission
The satellite was launched on June 15, 2017 on a Langer Marsch 4 launcher from the Jiuquan Cosmodrome in China together with HXMT , OVS 1B and ÑuSat 3 . The linear transponder was activated in October 2017.
Frequencies
The frequencies of the main payload are not known. The following frequencies for the amateur radio payload with the callsign BJ1SK have been coordinated by the International Amateur Radio Union :
- 435.210 MHz - 435.230 MHz: Uplink LSB
- 145.880 MHz - 145.860 MHz: Downlink USB (power 20 dBm)
- 145.855 MHz: CW beacon (power 17 dBm)
- 145.835 MHz: digital telemetry 4k8 GMSK
Individual evidence
- ↑ Ciprian Sufitchi: XW-4A. August 11, 2019, accessed on August 11, 2019 .
- ↑ Zhuhai Orbita Aerospace. Accessed August 11, 2019 .