SMDC ONE 2.3

NORAD 39474· COSPAR 2013-072N· Active satellite· Other / Unclassified· LEO

Launch

Launched on Dec 6, 2013 from Space Launch Complex 3E, United States of America aboard a Atlas V 501.

Atlas V 501 | NROL-39 (USA-247) →

Live · TLE epoch 2026-09-08 11:30 UTC

Orbit class

LEO — Low Earth Orbit (circular, < 2,000 km)

Operator

United States Government

Country

United States

Manufacturer

—

Launched

Dec 6, 2013

Mass

—

Apogee

282 km

Perigee

261 km

Inclination

120.43°

Period

89.8 min

Altitude history

Apogee and perigee for SMDC ONE 2.3 across 14 days of archived orbital elements (15 element sets, one per day).

Trend

Decaying

Change

-37.8 km

Rate

-2.72 km/day

Now

261 × 282 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 2013-072 (Atlas V 501 | NROL-39 (USA-247)).

ALICE · 39467
SMDC ONE 2.4 · 39469
TACSAT 6 · 39473

Sources & further reading

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