- Navigation satellite
- NORAD 39741
- 2014-026A
- Medium Earth orbit
Current orbit
View on live mapOrbit began over the Indian Ocean
Orbit ends over the Pacific Ocean
In view from you
Nobody watches NAVSTAR 70 (USA 251) go over, but a receiver still asks whether it is above the horizon. Say where you are and this card answers.
Your position is rounded to about a kilometre and sent only to the Orbinauts API, to find the pass.
No brightness has been published for NAVSTAR 70 (USA 251), so it is not a naked-eye satellite and no city page carries pass times for it. Nothing here estimates one.
Seeing it
There is nothing to go outside for: it is far too high and too faint for the naked eye. What you notice of it is a position fix, and the card above says whether it is above your horizon to give you one.
Timeline
Summary
Over the Pacific Ocean LIVE
Where is NAVSTAR 70 (USA 251)?
At 8:56:21 PM UTC NAVSTAR 70 (USA 251) was over the Pacific Ocean (42.7° N, 158.4° E), 20,287 km up, moving at 3.86 km/s and in sunlight.
What is NAVSTAR 70 (USA 251)?
A navigation satellite in medium Earth orbit, one of the 32 navigation satellites of the GPS constellation.
Can I see NAVSTAR 70 (USA 251)?
No, not with the naked eye: no brightness has been published for NAVSTAR 70 (USA 251), and nothing here estimates one; receivers on the ground use its signals instead, whenever it is above their horizon.
General
NAVSTAR 70 (USA 251) is one of the 32 navigation satellites of the GPS constellation. See every GPS satellite and how many are above you right now.
- Known to its operator as
- PRN 6
- Space vehicle number
- 67
- Clock in use
- Rubidium
- Generation
- GPS Block IIF
- Signals
- L1 C/A, P(Y) on L1 and L2, L2C, M-code, and L5
- Design life
- 12 years
- Built by
- Boeing
- Typical altitude
- 20,000 to 20,400 km
Latest orbital data
- Position received
- 8:56 PM UTC
- Station time (UTC)
- 8:56 PM UTC
- Latitude / longitude
- 42.7° N, 158.4° E
- Altitude
- 20,287 km
- Speed
- 3.86 km/s (13,896 km/h)
- Course
- south-east
- Light
- In sunlight
- Inclination
- 56.4°
- Orbital period
- 718 minutes
- Orbits per day
- 2.01
- This orbit
- 20,078 to 20,288 km
- In shadow
- None of this orbit
- In view from
- Within 7,380 km of the point below it
- Elements epoch
- Sep 18, 2026, 4:47 AM, 16 hours old
- Source
- Position from Space-Track orbital elements of Sep 18, 2026, 4:47 AM, 16 hours old.
No operator publishes an ephemeris for NAVSTAR 70 (USA 251), so every position here comes from its orbital elements.
In service
A receiver can count on it now.
- Usable now
- Yes: its operator has published no outage in force.
- Plane and slot
- Plane D, slot 4
- Last outage
- Jan 2, 2026, 3:18 PM to Jan 2, 2026, 10:10 PM, not forecast Notice
From GPS’s own notices, as its operator published them on Sep 16, 2026, 1:55 AM.
In orbit
- Close approaches
- Close approaches to NAVSTAR 70 (USA 251) are not available right now. Try again in a few minutes.
Beside the others
| Constellation | Satellites | Typical altitude | Orbital period | Planes | Operator |
|---|---|---|---|---|---|
| GPS | 32 | 20,000 to 20,400 km | 718 minutes | 6 | The United States Space Force |
| Galileo | 27 | 23,100 to 23,300 km | 845 minutes | — | EUSPA, the European Union Agency for the Space Programme |
| BeiDou | 37 | 21,450 to 21,600 km | 773 minutes | — | The China Satellite Navigation Office |
| GLONASS | 22 | 19,050 to 19,200 km | 676 minutes | — | Roscosmos, the Russian State Space Corporation |
Data and API
The current elements from Space-Track as an OMM object, epoch Sep 18, 2026, 4:47 AM, 16 hours old.
{
"OBJECT_NAME": "NAVSTAR 70 (USA 251)",
"OBJECT_ID": "2014-026A",
"EPOCH": "2026-09-18T04:47:32.697600",
"MEAN_MOTION": 2.00554451,
"ECCENTRICITY": 0.00394683,
"INCLINATION": 56.4458,
"RA_OF_ASC_NODE": 327.8932,
"ARG_OF_PERICENTER": 324.1166,
"MEAN_ANOMALY": 35.679,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 39741,
"ELEMENT_SET_NO": 999,
"REV_AT_EPOCH": 9040,
"BSTAR": 0,
"MEAN_MOTION_DOT": -8.8e-7,
"MEAN_MOTION_DDOT": 0
}