Mission record
Queqiao
Also known as Magpie Bridge
Peoples Republic of China · Launched
Explore trajectoryActive · Active
A Chinese relay satellite placed in a halo orbit beyond the Moon so that a lander on the far side could keep in contact with Earth.
- Destinations
- Launch vehicle
- Long March 4C
- Launch site
- Xichang Satellite Launch Center
- Countries
- Peoples Republic of China
- Mission types
- Other
Chronology
Mission timeline
Launch
Queqiao launched, with Longjiang 1 and Longjiang 2 as secondary payloads
Xinhua reports 05:28 Beijing Time on May 21; converting from UTC+08:00 gives May 20 at 21:28 UTC. CNSA confirms Longjiang-1 and Longjiang-2 shared Queqiao's launch. Their individual deployment times remain separate and unresolved.
EarthOrbit insertion
Queqiao entered its operational Earth–Moon L2 halo orbit
Milestone
The NCLE team reported that its three antennas had partially deployed
Announcement date; the exact deployment times were not stated. Later motor-angle measurements give unequal antenna lengths of 4.13, 2.17 and 2.85 m.
Mission architecture
Vehicles
Queqiao · Spacecraft
Destinations: Moon
Trajectory record
Time-dependent navigation trajectory
Source states place the model at the selected time. Reconstructed flight, estimates, predictions and historical mission plans are identified by interval; gaps remain visible.
Source records and sampling assumptions are retained with the repository data. Model attitude and surface appearance are illustrative.
- Queqiao relay spacecraft: Project Pluto optical-fit Queqiao outbound transfer, 22 May 2018; lunar flyby and later L2 orbit uncovered. · May 22, 2018 to May 22, 2018
Provenance
Sources
Each source is listed once and labeled with the mission, event, trajectory, or destination/body context it supports.
Data verified through October 11, 2026
- Chang'e 4 - NASA NSSDCA Master Catalog — NSSDCAMission page · Supports: mission claims · event claims
- Longjiang 2 - NASA NSSDCA Master Catalog — NSSDCAMission page · Supports: mission claims · event claims
- Relay satellite for Chang'e-4 lunar probe enters planned orbit - CNSA — CNSAMission page · Supports: mission claims
- Zhang: Queqiao flight, communications and spacecraft design — OTHERTechnical document · Supports: mission claims · event claims
- Radboud Radio Lab: actual NCLE antenna deployment lengths, slide 9 — OTHERTechnical document · Supports: mission claims · event claims
- Karapakula et al.: NCLE antenna structure and spacecraft placement — OTHERTechnical document · Supports: mission claims
- NOVA and the NCLE team: actual partial antenna deployment announcement, 26 November 2019 — OTHERTechnical document · Supports: mission claims · event claims
- Queqiao Project Pluto outbound optical orbit fit — OTHERArchive · Supports: mission claims
- China launches relay satellite to explore Moon's far side - Xinhua — OTHEROther · Supports: mission claims · event claims
- China launches relay satellite to explore Moon's far side - CNSA — OTHERMission page · Supports: mission claims · event claims
- DE421 lunar mean-Earth and principal-axes frame specification — NAIFTechnical document · Supports: destination/body context
- DE440 lunar mean-Earth and principal-axes frame specification — NAIFSpice · Supports: destination/body context
- IAU rotational elements and body radii (PCK 00011) — NAIFSpice · Supports: destination/body context
- LOLA global lunar height maps, LDEM_4 V3 original PDS source label — NASATechnical document · Supports: destination/body context
- LOLA 2023 south-polar elevation, uncertainty and effective-resolution maps — NASATechnical document · Supports: destination/body context
- Blue Ghost Lunar Lander Seen From Above: LROC site and terrain context — NASATechnical document · Supports: destination/body context
- Moon Facts — NASAOther · Supports: destination/body context
- SLDEM2015 Blue Ghost region: original PDS elevation-grid label — NASATechnical document · Supports: destination/body context
- JPL Solar System Dynamics Astrodynamic Parameters — JPLOther · Supports: destination/body context
- Planet Sizes and Locations in Our Solar System — NASAOther · Supports: destination/body context