NNSS 20 (TRANSIT 20)
NORAD 06909· Navigation· LEO
Live · TLE epoch 2026-09-09 12:07 UTC
Orbit class
LEO — Low Earth Orbit (circular, < 2,000 km)
Operator
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Country
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Manufacturer
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Launched
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Mass
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Apogee
1,112 km
Perigee
885 km
Inclination
89.86°
Period
1.75 h
Altitude history
Apogee and perigee for NNSS 20 (TRANSIT 20) across 103 days of archived orbital elements (104 element sets, one per day).
Trend
Stable
Change
-0.1 km
Rate
-0.00 km/day
Now
885 × 1112 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.
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