NAVSTAR 57 (USA 183)

LIVE

Link to this page

https://orbinauts.com/satellites/28874

  • Navigation satellite
  • NORAD 28874
  • 2005-038A
  • Medium Earth orbit

Current orbit

Where NAVSTAR 57 (USA 183) is on the world map, with the orbit it is flying
View on live map

Orbit began over the Indian Ocean

Orbit ends over the Pacific Ocean

Past trackNext orbits

In view from you

Nobody watches NAVSTAR 57 (USA 183) 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 57 (USA 183), 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

  1. Outage

    It was out of service from Feb 23, 2005, 10:00 PM to Feb 24, 2005, 10:00 PM, which its operator had not forecast. Source

  2. Outage

    Its operator took it out of service from Dec 4, 2025, 6:08 AM to Dec 4, 2025, 12:20 PM, as it had forecast. Source

  3. Outage

    Its operator took it out of service from Jun 4, 2026, 6:00 AM to Jun 12, 2026, 3:51 PM, as it had forecast. Source

Summary

Over the Coral Sea LIVE

Where is NAVSTAR 57 (USA 183)?

At 8:56:43 PM UTC NAVSTAR 57 (USA 183) was over the Coral Sea (20.7° S, 152.9° E), 20,195 km up, moving at 3.87 km/s and in sunlight.

What is NAVSTAR 57 (USA 183)?

A navigation satellite in medium Earth orbit, one of the 32 navigation satellites of the GPS constellation.

Can I see NAVSTAR 57 (USA 183)?

No, not with the naked eye: no brightness has been published for NAVSTAR 57 (USA 183), and nothing here estimates one; receivers on the ground use its signals instead, whenever it is above their horizon.

General

NAVSTAR 57 (USA 183) 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 17
Space vehicle number
53
Clock in use
Rubidium
Generation
GPS Block IIR-M
Signals
L1 C/A, P(Y) on L1 and L2, L2C, and M-code
Design life
7.5 years
Built by
Lockheed Martin
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
20.7° S, 152.9° E
Altitude
20,195 km
Speed
3.87 km/s (13,939 km/h)
Course
south
Light
In sunlight
Inclination
54.8°
Orbital period
718 minutes
Orbits per day
2.01
This orbit
19,841 to 20,525 km
In shadow
None of this orbit
In view from
Within 7,380 km of the point below it
Elements epoch
Sep 18, 2026, 5:46 AM, 15 hours old
Source
Position from Space-Track orbital elements of Sep 18, 2026, 5:46 AM, 15 hours old.

No operator publishes an ephemeris for NAVSTAR 57 (USA 183), 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 C, slot 4
Last outage
Jun 4, 2026, 6:00 AM to Jun 12, 2026, 3:51 PM, 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 57 (USA 183) are not available right now. Try again in a few minutes.

See every close approach reported in orbit.

Beside the others

ConstellationSatellitesTypical altitudeOrbital periodPlanesOperator
GPS3220,000 to 20,400 km718 minutes6The United States Space Force
Galileo2723,100 to 23,300 km845 minutes—EUSPA, the European Union Agency for the Space Programme
BeiDou3721,450 to 21,600 km773 minutes—The China Satellite Navigation Office
GLONASS2219,050 to 19,200 km676 minutes—Roscosmos, the Russian State Space Corporation

Data and API

The current elements from Space-Track as an OMM object, epoch Sep 18, 2026, 5:46 AM, 15 hours old.

{
  "OBJECT_NAME": "NAVSTAR 57 (USA 183)",
  "OBJECT_ID": "2005-038A",
  "EPOCH": "2026-09-18T05:46:40.420704",
  "MEAN_MOTION": 2.00559411,
  "ECCENTRICITY": 0.01287626,
  "INCLINATION": 54.8088,
  "RA_OF_ASC_NODE": 269.4139,
  "ARG_OF_PERICENTER": 297.6276,
  "MEAN_ANOMALY": 173.127,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 28874,
  "ELEMENT_SET_NO": 999,
  "REV_AT_EPOCH": 15370,
  "BSTAR": 0,
  "MEAN_MOTION_DOT": 1.9e-7,
  "MEAN_MOTION_DDOT": 0
}