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SatelliteIndex

Satellite · NORAD 42684 · COSPAR 2017-021A

TIANZHOU-1

DecayedPayloadLEOUnknown derived
  • Operator People's Republic of China
  • Constellation —
  • Country China

Altitude now

—

object decayed

Velocity

—

Inclination

42.78°

Period

92.4 min

92.4 min

Perigee

388km

Apogee

392km

orbit unavailableNo orbital element set on file — decayed 22 Sept 2017.· Metadata updated 29 h ago

Live position

Live position

Live position unavailable — this object re-entered the atmosphere on 22 Sept 2017 and is no longer tracked.

Mission

Mission & classification

Mission type derived
Unknown
Object type
Payload
SATCAT ops status
Decayed [D]
Radar cross-section
—

CelesTrak groups

Not listed in any CelesTrak group.

Aliases

  • TIANZHOU-1Celestrak Satcat

Ownership

Operator & country

Operator
—
SATCAT owner code
PRC · People's Republic of China
Country
China CN

Launch

Launch

Launch page →
Launch date
20 Apr 2017
COSPAR launch id
2017-021
Launch site
Wenchang Space Launch Site, Hainan

Objects from the same launch · 5

Change log

History

No changes recorded since first ingestion on 11 Sept 2026 18:54 UTC. Status, orbit class, name and ownership changes are logged here as sources are re-ingested.

Regulatory

UN registration

UN Register of Objects Launched into Outer Space (UNOOSA) — connector planned, not yet ingested; registration unavailable

Transparency

Sources & provenance

All sources →

No source is linked to this record yet — the catalogue row exists but no provenance entry has been written for it.

Field provenance

No field-level provenance recorded.

Timeline

Events

All events →

No events detected for this object yet. Launches, decays and orbit changes are generated by the derived-analytics connector.

Reference

Identifiers

NORAD catalogue number
42684
COSPAR / international designator
2017-021A
SatelliteIndex id
sat_01M28X3JTXXCKCTPCR0KH52CNJ
Canonical slug
tianzhou-1-42684

Orbit class, mission type and constellation membership are derived by SatelliteIndex (Unknown) — see the methodology. Positions are propagated estimates, not tracking measurements; never use them for conjunction assessment.