NAVSTAR 77

Launch Details
Launched 22 December 2018
Flight ended –
Status Operational
Categories Search & Rescue (SARSAT)
GPS Operational
Active satellites
Launch site Air Force Eastern Test Range, Florida, USA
Owner United States
NORAD ID 43873
COSPAR ID 2018-109A
Alternative names USA 289
GPS BIII-1
GPS 3-1
SVN 74
PRN 04
SLOT F4
VESPUCCI
Observing

Current orbital elements

Inclination 55.530°
Eccentricity 0.00359
RA ascending node 6.796 hr
Argument perigee 194.436°
Mean anomaly 337.500°
Orbital period 717.937 min
Epoch of osculation 12 Oct 2025, 22:47

See historical orbital elements »

Derived Quantities

Min Altitude 20093.1 km
Mean Altitude 20188.4 km
Peak Altitude 20283.6 km

Orbital History

Drag the graphs below left or right to change the time range, or use your scroll wheel to zoom in or out.

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South El Monte

Latitude:
Longitude:
Timezone:

34.05°N
118.05°W
PDT

Color scheme


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Last updated: 14 Oct 2025, 18:50 UTC
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