Home›Maneuver Tracker›Close Approaches›YAOGAN 16A ⟷ SHIYAN 27E
medium · PROXIMITY
8.69 kmmiss distance
Closest approach (TCA)
2026-10-15 06:29 UTC
Relative speed
7.06 km/s
Altitude
Current separation
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On 2026-10-15 06:29 UTC, CN YAOGAN 16A and CN SHIYAN 27E reached a closest approach (TCA) of 8.69 km, with a relative velocity of 7.06 km/s. Miss distance and time of closest approach are computed by propagating the latest published orbital elements for both objects, and values update as new element sets are published. See the Satellite Maneuver Tracker for the live picture and space situational awareness for context.

Why it mattersBoth objects are catalogued as payloads. Screening continues as new element sets arrive; operators act on their own conjunction data.

The Two Objects

Dossiers from the satellite directory
YAOGAN 16APayload
NORAD 39011
CountryPRC
Launched2012-11-25
COSPAR2012-066A
Maneuver capableUnknown
SHIYAN 27EPayload
NORAD 63603
CountryPRC
Launched2025-04-18
COSPAR2025-078E
Maneuver capableUnknown

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 1052 KMISS 420Starlink 550

At 1052 km this pass sits in low Earth orbit. Objects here stay up for decades: there is too little atmospheric drag to clean the band naturally. Why crowded bands matter →

History Between This Pair

1 recorded pass under 10 km
Pair history · YAOGAN 16A ⟷ SHIYAN 27E
Now8.69 km7.06 km/s1,052 kmThis page

Repeat encounters are common for objects in near-intersecting orbital planes; each pass is re-screened as fresh element sets arrive.

These Objects Elsewhere

Other screened approaches · 7 days
3.73 km10-19 19:58 UTC
SHIYAN 27ETHORAD AGENA D DEB
4.09 km10-12 04:51 UTC
SHIYAN 27ETHORAD AGENA D DEB
5.16 km10-14 13:53 UTC
SHIYAN 27ECOSMOS 1375 DEB

How These Numbers Are Computed

Miss distance and TCA come from propagating the latest published orbital elements for both objects and searching for the minimum separation over the screening window. Element sets carry kilometre-scale uncertainty, so figures here describe a close pass, not a collision prediction; a change in either object's published elements re-computes the pass automatically. What is a conjunction? → How conjunction assessment works →

Cite this encounter: Orbital Radar — “YAOGAN 16A ⟷ SHIYAN 27E: 8.69 km close approach”, https://orbitalradar.com/conjunction/39011-63603 (accessed 2026-10-18).