NEMO-HD

NORAD 46277· COSPAR 2020-061F· Active satellite· Earth Observation· SSO

Launch

Launched on Sep 3, 2020 from Ariane Launch Area 1 (ELV), French Guiana aboard a Vega.

Vega | SSMS PoC →

Live · TLE epoch 2026-09-08 14:16 UTC

Orbit class

SSO — Sun-Synchronous (LEO at 96–102° inclination)

Operator

—

Country

SVN

Manufacturer

—

Launched

Sep 3, 2020

Mass

—

Apogee

434 km

Perigee

430 km

Inclination

97.18°

Period

1.55 h

Altitude history

Apogee and perigee for NEMO-HD across 103 days of archived orbital elements (104 element sets, one per day).

Trend

Decaying

Change

-5.7 km

Rate

-0.06 km/day

Now

430 × 434 km

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

3 other catalogued objects still in orbit from launch 2020-061 (Vega | SSMS PoC).

NAPA-1 · 46320
ATHENA · 46275
GHGSAT-C1 · 46278

Sources & further reading

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