Pujiang-1, also known as PJ-1, is a Chinese technology demonstration satellite[1] designed to promote the construction of smart cities in China.[4] PJ-1 also monitors weather, traffic and population density of a city. It is the first Chinese satellite that uses 3D printing for the titanium structure of its antenna.[5] It also features a Wi-Fi router providing a communication network between satellites.[3]
| Mission type | Technology Experiment |
|---|---|
| Operator | SAST[1] |
| COSPAR ID | 2015-051A  |
| SATCAT no. | 40925[2] |
| Spacecraft properties | |
| Spacecraft | PJ-1 |
| Manufacturer | China |
| Start of mission | |
| Launch date | 25 September 2015, 01:41 (UTC) |
| Rocket | Chang Zheng 11 |
| Launch site | JSLC |
| Orbital parameters | |
| Semi-major axis | 6855 km |
| Periapsis altitude | 474.9 km |
| Apoapsis altitude | 493.6 km |
| Inclination | 97.3 degrees |
| Period | 94.1 minutes[3] |
PJ-1 was launched on 25 September 2015 at 1:41 UTC from the Jiuquan Satellite Launch Center (JSLC) in China.
The launch rocket Chang Zheng 11 (Long March 11) delivered PJ-1 satellite into a Sun-synchronous orbit (SSO) at an altitude of about 299 miles (481 km), inclined 97.3 degrees.
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