China Aerospace Science and Technology CorporationLong March 3C/YZ-1Launch Complex 2 (LC-2), Xichang Satellite Launch Center, People's Republic of China
BDS I1-S
Launched
March 30, 2015
Image: 我们的太空
Summary
BeiDou-3 I1-S launched on a China Aerospace Science and Technology Corporation Long March 3C/YZ-1 from Launch Complex 2 (LC-2), Xichang Satellite Launch Center, People's Republic of China on March 30, 2015. It was China Aerospace Science and Technology Corporation's 150th launch, 1st this year and humanity's 5,462nd orbital launch attempt. It was the 1st Long March 3C/YZ-1 flight. The payload was bound for Geosynchronous Orbit (GSO). The tracked orbit of Beidou DW 17, one of 3 catalogued objects, from April 2, 2015, was 35,804 × 36,788 km inclined 55.0°. 3 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Booster
- No booster details on record.
- Mission
- Navigation · Geosynchronous Orbit (GSO)
- Milestone
- 1st Long March 3C/YZ-1 flightChina Aerospace Science and Technology Corporation's 150th launch1st this yearhumanity's 5,462nd orbital launch attempt20th orbital launch attempt this year
Flight preview
Orbit: as tracked
Beidou DW 17 · NORAD 40549 · 2015-019 · Space-Track · tracking 1 of 3 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 2015-019A
- Epoch
- 2015-04-02 08:03:11 UTC
- Mean motion
- 0.98505784 rev/day
- Eccentricity
- 0.0115321
- Inclination
- 54.9786°
- Ascending node
- 342.9515°
- Arg. of perigee
- 172.4304°
- Mean anomaly
- 352.297°
- Element set
- 999
- Rev at epoch
- 3
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: GSO.
Catalogued objects
3 catalogued: 1 payload, 2 rocket stages; 1 still in orbit
- Beidou DW 17 · NORAD 40549 · in orbit
CZ-3C Y11 Stage 3 · re-entered March 23, 2016
Yuanzheng-1 Y1 · left Earth orbit April 1, 2015
Data from J. McDowell, planet4589.org
About this launch
BeiDou I1-S was the first experimental satellite of China's third-generation BeiDou navigation system, an inclined-geosynchronous spacecraft placed directly into its operational orbit by the debut of the Yuanzheng-1 upper stage.
Pad

Launch Complex 2 (LC-2), Xichang Satellite Launch Center, People's Republic of China
58th launch from Launch Complex 2 (LC-2), 1st this year · 85th from Xichang Satellite Launch Center, People's Republic of China
126 launches from this pad · 242 from Xichang Satellite Launch Center, People's Republic of China
89 days after the previous launch from this pad
All launches from Xichang Satellite Launch Center, People's Republic of ChinaOpen in maps
Questions
When did BeiDou-3 I1-S launch?
BeiDou-3 I1-S launched on March 30, 2015. The time is known to the hour, not the minute.
Where can I watch BeiDou-3 I1-S?
No webcast is on record for this launch.
What rocket launched BeiDou-3 I1-S?
Long March 3C/YZ-1, flown by China Aerospace Science and Technology Corporation. Long March 3C/YZ-1 spec sheet
Where did BeiDou-3 I1-S launch from?
Launch Complex 2 (LC-2), Xichang Satellite Launch Center, People's Republic of China.
What orbit did BeiDou-3 I1-S reach?
The tracked orbit of Beidou DW 17, one of 3 catalogued objects, from April 2, 2015, was 35,804 × 36,788 km inclined 55.0°.
How many satellites did BeiDou-3 I1-S launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).
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