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🛰️ SATELLITE · HISTORICAL RECORD

Nozomi

Re-entered 4 Jul 1998

Nozomi (NORAD 25383, COSPAR 1998-041A) was a J satellite that re-entered Earth's atmosphere on 4 Jul 1998, launched on 3 Jul 1998 on the Planet B mission. It is catalogued as PLANET-B. It was operated by ISAS as part of the ISAS Planet programme. The spacecraft was built by NEC on the Planet B bus, with a mass of 540 kg. Like most satellites in low orbits, it was gradually slowed by atmospheric drag until re-entry. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.

1998
launched
1998
re-entered
0
years on orbit
540
kg mass

Lifecycle

Launched3 Jul 1998 · on the Planet B mission
Operational1 Dec 2003 · entered service
Retired1 Dec 2003 · end of operational service
Re-entered4 Jul 1998 · atmospheric re-entry — object destroyed

Specifications

NORAD ID25383
COSPAR1998-041A
TypeSatellite
OperatorISAS
Country / StateJ
ManufacturerNEC
BusPlanet B
Mass540 kg (262 kg dry)
ProgrammeISAS Planet
CategoryPLAN
OrbitBEO (CLO)
Altitude1,421 × 516,130 km
Inclination25.4°

Frequently asked questions

What happened to Nozomi?

Nozomi re-entered Earth's atmosphere on 4 Jul 1998, ending a mission that began with its launch in 1998. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Nozomi re-enter the atmosphere?

Nozomi re-entered on 4 Jul 1998, according to Orbital Radar's historical catalogue records.

Who operated and built Nozomi?

Nozomi was operated by ISAS and built by NEC (J).

Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-10-21.