Satellite · NORAD 20478 · COSPAR 1990-013A
MOMO-1B (MOS-1B)
- Operator Japan
- Constellation —
- Country Japan
Altitude now
—
no element set
Velocity
—
Inclination
99.21°
Period
103.2 min
103.2 min
Perigee
904km
Apogee
911km
orbit unavailableNo orbital element set on file.· Metadata updated 13 h ago
Live position
Live position
Live position unavailable — no public orbital element set exists for this object (it may be classified, untracked or too small to catalogue).
Mission
Mission & classification
- Mission type derived
- Unknown
- Object type
- Payload
- SATCAT ops status
- Non-operational [-]
- Radar cross-section
- 3.0 m²
CelesTrak groups
Not listed in any CelesTrak group.
Aliases
- MOMO-1B (MOS-1B)Celestrak Satcat
Ownership
Operator & country
- Operator
- —
- SATCAT owner code
- JPN · Japan
- Country
- Japan JP
Launch
Launch
- Launch date
- 07 Feb 1990
- COSPAR launch id
- 1990-013
- Launch site
- Tanegashima Space Center
Objects from the same launch · 3
- ORIZURU (DEBUT)20479PayloadUnknown
- JAS-1B (FO-20)20480PayloadUnknown
- H-1 R/B20491Rocket bodyInactive
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
Transparency
Sources & provenance
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
No events detected for this object yet. Launches, decays and orbit changes are generated by the derived-analytics connector.
Reference
Identifiers
- NORAD catalogue number
- 20478
- COSPAR / international designator
- 1990-013A
- SatelliteIndex id
- sat_01M28X3JPDAP3BK987B7WYXRN1
- Canonical slug
- momo-1b-mos-1b-20478
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.