LowEarth

Z-SAT

NORAD 49399· COSPAR 2021-102E· Active satellite· Other / Unclassified· SSO
Launch
Launched on Nov 9, 2021 from Mu Center, Japan aboard a Epsilon.
Epsilon | RAISE-2 & others
Live · TLE epoch 2026-09-08 14:53 UTC
Orbit class
SSO — Sun-Synchronous (LEO at 96–102° inclination)
Operator
JAXA
Country
Japan
Manufacturer
Launched
Nov 9, 2021
Mass
Apogee
524 km
Perigee
503 km
Inclination
97.33°
Period
1.58 h

Altitude history

Apogee and perigee for Z-SAT across 14 days of archived orbital elements (15 element sets, one per day).

Trend
Stable
Change
-0.3 km
Rate
-0.02 km/day
Now
503 × 524 km
514525502Aug 26Sep 9
Apogee Perigee

Derived from our own archive of CelesTrak orbital elements, sampled every 3 hours. Short windows show drag and station-keeping; they are not a reentry prediction.

Launched with

5 other catalogued objects still in orbit from launch 2021-102 (Epsilon | RAISE-2 & others).

Sources & further reading

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