USA 278 — pass prediction & tasking

USA 278 is an optical satellite operated by NRO in heo orbit at roughly 19925 km altitude (NORAD 42941, COSPAR 2017-056A).

Operator: NRO

Frequently asked questions

When does USA 278 pass over my location?

Use PassPrediction's pass search to compute USA 278's upcoming overpasses over any area of interest, with elevation, off-nadir angle, and ascending/descending node.

What orbit is USA 278 in?

USA 278 is in heo orbit at about 19925 km, inclination 64°.

Who operates USA 278?

USA 278 is operated by NRO.

What is USA 278's NORAD ID?

USA 278 is cataloged as NORAD 42941 (COSPAR 2017-056A).

Verify on a reference tracker

Cross-check NORAD 42941 / COSPAR 2017-056A against an independent satellite catalog:

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