China Aerospace Science and Technology CorporationLong March 2D/YZ-3Launch Area 94 (SLS-2 / 603), Jiuquan Satellite Launch Center, People's Republic of China
Hongyan-1 & Yunhai-2 Group 01
Launched
December 29, 2018 · 08:00 UTC
Summary
Hongyan-1 & Yunhai-2 Group 01 launched on a China Aerospace Science and Technology Corporation Long March 2D/YZ-3 from Launch Area 94 (SLS-2 / 603), Jiuquan Satellite Launch Center, People's Republic of China on December 29, 2018 at 08:00 UTC. The launch window ran from 07:53 to 08:24 UTC. It was China Aerospace Science and Technology Corporation's 244th launch, 37th this year and humanity's 5,820th orbital launch attempt. It was the 1st Long March 2D/YZ-3 flight. The payload was bound for low Earth orbit (LEO). Yunhai-2 01 xing, one of 8 catalogued objects, reached a 524 × 532 km orbit inclined 50.0°. 8 objects from this launch are catalogued, 7 of them payloads.
- Booster
- No booster details on record.
- Mission
- Communications · Low Earth Orbit (LEO)
- Milestone
- 1st Long March 2D/YZ-3 flightChina Aerospace Science and Technology Corporation's 244th launch37th this yearhumanity's 5,820th orbital launch attempt114th orbital launch attempt this year
Flight preview
Orbit: as tracked
Yunhai-2 01 xing · NORAD 43909 · 2018-112 · Space-Track · tracking 1 of 8 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 2018-112A
- Epoch
- 2018-12-29 12:42:36 UTC
- Mean motion
- 15.1501587 rev/day
- Eccentricity
- 0.0005674
- Inclination
- 50.0068°
- Ascending node
- 184.4865°
- Arg. of perigee
- 249.8163°
- Mean anomaly
- 223.9397°
- Element set
- 999
- Rev at epoch
- 2
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO. Ascent drawn from padside's representative profile.
Catalogued objects
8 catalogued: 7 payloads, 1 rocket stage; 7 still in orbit
- Yunhai-2 01 xing · NORAD 43909 · in orbit
- Yunhai-2 02 xing · NORAD 43910 · in orbit
- Yunhai-2 03 xing · NORAD 43911 · in orbit
- Yunhai-2 04 xing · NORAD 43912 · in orbit
- Yunhai-2 05 xing · NORAD 43913 · in orbit
- Chongqing · NORAD 43914 · in orbit
- Yunhai-2 06 xing · NORAD 43915 · in orbit
CZ-2D Y35 Stage 2 · re-entered January 1, 2019
Data from J. McDowell, planet4589.org
About this launch
Hongyan-1 is the first demonstration satellite for Hongyan, which is a planned constellation consisting of 320 satellites in low Earth orbit. Yunhai-2 is a constellation of Chinese military meteorological satellites. Reportedly the satellites use Global Navigation Satellite System (GNSS) Radio Occultation (GNSS-RO) to collect atmospheric data for weather prediction and for ionosphere, climate, and gravity research.
Pad

Launch Area 94 (SLS-2 / 603), Jiuquan Satellite Launch Center, People's Republic of China
62nd launch from Launch Area 94 (SLS-2 / 603), 11th this year · 113th from Jiuquan Satellite Launch Center, People's Republic of China
Local pad time at liftoff: Dec 29, 4:00 PM GMT+8, in daylight
138 launches from this pad · 299 from Jiuquan Satellite Launch Center, People's Republic of China
22 days after the previous launch from this pad
All launches from Jiuquan Satellite Launch Center, People's Republic of ChinaOpen in maps
Questions
When did Hongyan-1 & Yunhai-2 Group 01 launch?
Hongyan-1 & Yunhai-2 Group 01 launched on December 29, 2018 at 08:00 UTC. The launch window ran from 07:53 to 08:24 UTC.
Where can I watch Hongyan-1 & Yunhai-2 Group 01?
Coverage: Long March-2D launches Hongyan-1 and six Yunhai-2 satellites. Watch the replay
What rocket launched Hongyan-1 & Yunhai-2 Group 01?
Long March 2D/YZ-3, flown by China Aerospace Science and Technology Corporation. Long March 2D/YZ-3 spec sheet
Where did Hongyan-1 & Yunhai-2 Group 01 launch from?
Launch Area 94 (SLS-2 / 603), Jiuquan Satellite Launch Center, People's Republic of China. Liftoff was Dec 29, 4:00 PM GMT+8 local time at the pad.
What orbit did Hongyan-1 & Yunhai-2 Group 01 reach?
Yunhai-2 01 xing, one of 8 catalogued objects, reached a 524 × 532 km orbit inclined 50.0°.
How many satellites did Hongyan-1 & Yunhai-2 Group 01 launch?
7 payloads from this launch are catalogued, 7 of them still in orbit (Data from J. McDowell, planet4589.org).
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