- Navigation satellite
- Military
- NAVSTAR 47 (USA 150)
- NORAD 26360
- 2000-025A
- Medium Earth orbit
Current orbit
View on live mapOrbit began over the Indian Ocean
Orbit ends over the Pacific Ocean
Sunlit since
Enters the Earth’s shadow
In view from you
Nobody watches GPS IIR-4 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 GPS IIR-4, 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
- Launch
Launched, on the day GCAT records. Source
Summary
Over the Pacific Ocean LIVE
Where is GPS IIR-4?
At 4:55:13 PM UTC GPS IIR-4 was over the Pacific Ocean (38.9° N, 142.2° W), 20,231 km up, moving at 3.87 km/s and in sunlight.
What is GPS IIR-4?
A navigation satellite in medium Earth orbit, in space since May 11, 2000.
Can I see GPS IIR-4?
No, not with the naked eye: no brightness has been published for GPS IIR-4, and nothing here estimates one; receivers on the ground use its signals instead, whenever it is above their horizon.
General
- Operator
- US Air Force Space and Missile Center
- State
- United States of America
- Built by
- Lockheed Martin Missiles and Space, Sunnyvale
- What it is
- Navigation satellite
- Military
- Yes: a defence organisation flies it
- Launched
- Mass
- about 1.1 t
- Operating
- Yes
- Orbit class
- Medium Earth orbit
From GCAT, Jonathan McDowell’s general catalogue, licensed CC BY 4.0: the operator, the state, the manufacturer, what it is for, that a defence organisation flies it, the launch day, the mass, and whether it is operating. The orbit class is read from its current elements.
Latest orbital data
- Position received
- 4:55 PM UTC
- Station time (UTC)
- 4:55 PM UTC
- Latitude / longitude
- 38.9° N, 142.2° W
- Altitude
- 20,231 km
- Speed
- 3.87 km/s (13,925 km/h)
- Course
- south-east
- Light
- In sunlight until 1:32 AM UTC
- Inclination
- 55.2°
- Orbital period
- 718 minutes
- Orbits per day
- 2.01
- This orbit
- 20,119 to 20,244 km
- In shadow
- 14 minutes of each orbit
- In view from
- Within 7,380 km of the point below it
- Elements epoch
- Nov 8, 2026, 12:31 AM, 16 hours old
- Source
- Position from Space-Track orbital elements of Nov 8, 2026, 12:31 AM, 16 hours old.
No operator publishes an ephemeris for GPS IIR-4, so every position here comes from its orbital elements.
In orbit
- Close approaches
- No close approach to GPS IIR-4 has been reported publicly in the past thirty days.
From Space-Track’s public conjunction messages; the latest report was issued Nov 8, 2026, 1:11 PM, 3 hours old. Only approaches serious enough to be reported publicly are listed: within three days and, for two bodies near the Earth, closer than a kilometre with a chance of a collision above 1 in 10,000, the level at which NASA moves the ISS.
Data and API
The current elements from Space-Track as an OMM object, epoch Nov 8, 2026, 12:31 AM, 16 hours old.
{
"OBJECT_NAME": "NAVSTAR 47 (USA 150)",
"OBJECT_ID": "2000-025A",
"EPOCH": "2026-11-08T00:31:05.190240",
"MEAN_MOTION": 2.00570345,
"ECCENTRICITY": 0.00234077,
"INCLINATION": 55.207,
"RA_OF_ASC_NODE": 13.5167,
"ARG_OF_PERICENTER": 267.1831,
"MEAN_ANOMALY": 89.7,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 26360,
"ELEMENT_SET_NO": 999,
"REV_AT_EPOCH": 19415,
"BSTAR": 0,
"MEAN_MOTION_DOT": -0.00000104,
"MEAN_MOTION_DDOT": 0
}