ATHENA

NORAD 46275· COSPAR 2020-061D· Active satellite· Other / Unclassified· SSO

Launch

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

Vega | SSMS PoC →

Live · TLE epoch 2026-10-24 02:56 UTC

Orbit class

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

Operator

United States Government

Country

United States

Manufacturer

—

Launched

Sep 3, 2020

Mass

—

Apogee

415 km

Perigee

413 km

Inclination

97.18°

Period

1.54 h

Altitude history

Apogee and perigee for ATHENA across 59 days of archived orbital elements (60 element sets, one per day).

Trend

Decaying

Change

-4.7 km

Rate

-0.08 km/day

Now

413 × 415 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
NEMO-HD · 46277
GHGSAT-C1 · 46278

Sources & further reading

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