Spacecraft information: OSCAR 27

Launch Details
Launched 15 September 1987
Flight ended –
Status Unknown
Category Navy Navigation Satellite System (NNSS)
Launch site Air Force Western Test Range, California, USA
Owner United States
NORAD ID 18361
COSPAR ID 1987-080A
Observing

Current orbital elements

Inclination 90.371°
Eccentricity 0.01049
RA ascending node 5.664 hr
Argument perigee 140.901°
Mean anomaly 219.978°
Orbital period 107.068 min
Epoch of osculation 16 May 2026, 07:01

See historical orbital elements »

Derived Quantities

Min Altitude 1019.7 km
Mean Altitude 1098.1 km
Peak Altitude 1176.5 km

Launched alongside

OSCAR 29 SCOUT G-1 R/B SCOUT G-1 DEB SCOUT G-1 DEB SCOUT G-1 DEB SCOUT G-1 DEB SCOUT G-1 DEB SCOUT G-1 DEB SCOUT G-1 DEB SCOUT G-1 DEB SCOUT G-1 DEB SCOUT G-1 DEB

Orbital History

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

Share

South El Monte

Latitude:
Longitude:
Timezone:

34.05°N
118.05°W
PDT

Color scheme


© Dominic Ford 2011–2026.

For more information including contact details, click here.
Our privacy policy is here.
Last updated: 16 May 2026, 18:16 UTC
Website designed by .

Site hosted by