- Navigation satellite
- GALILEO-FM4
- NORAD 38858
- 2012-055B
- Medium Earth orbit
Current orbit
View on live mapOrbit began over Iran
Orbit ends over the Pacific Ocean
In view from you
Nobody watches GalileoSat-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 GalileoSat-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 Indian Ocean LIVE
Where is GalileoSat-4?
At 4:54:55 PM UTC GalileoSat-4 was over the Indian Ocean (40° S, 122.4° E), 23,950 km up, moving at 3.63 km/s and in sunlight.
What is GalileoSat-4?
A navigation satellite in medium Earth orbit, in space since Oct 12, 2012.
Can I see GalileoSat-4?
No, not with the naked eye: no brightness has been published for GalileoSat-4, and nothing here estimates one; receivers on the ground use its signals instead, whenever it is above their horizon.
General
- Operator
- European Space Agency
- State
- European Space Agency
- Built by
- EADS Bremen
- What it is
- Navigation satellite
- Launched
- Mass
- 700 kg
- Operating
- 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, the launch day, the mass, and whether it is operating. The orbit class is read from its current elements.
Latest orbital data
- Position received
- 4:54 PM UTC
- Station time (UTC)
- 4:54 PM UTC
- Latitude / longitude
- 40° S, 122.4° E
- Altitude
- 23,950 km
- Speed
- 3.63 km/s (13,050 km/h)
- Course
- north
- Light
- In sunlight
- Inclination
- 55.3°
- Orbital period
- 875.4 minutes
- Orbits per day
- 1.65
- This orbit
- 23,932 to 23,936 km
- In shadow
- None of this orbit
- In view from
- Within 7,570 km of the point below it
- Elements epoch
- Nov 6, 2026, 11:13 PM, 1 day old
- Source
- Position from Space-Track orbital elements of Nov 6, 2026, 11:13 PM, 1 day old.
No operator publishes an ephemeris for GalileoSat-4, so every position here comes from its orbital elements.
In orbit
- Close approaches
- No close approach to GalileoSat-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.
Launched with
GalileoSat-4 shares its launch, 2012-055, with 2 other bodies the catalogue lists in orbit.
| Body | What it is |
|---|---|
| GALILEO-FM3 | Navigation satellite |
| FREGAT R/B | Rocket body |
Read from the international designators of the US catalogue: the year and the launch number every piece of one launch shares. A body that has come down is no longer listed.
Data and API
The current elements from Space-Track as an OMM object, epoch Nov 6, 2026, 11:13 PM, 1 day old.
{
"OBJECT_NAME": "GALILEO-FM4",
"OBJECT_ID": "2012-055B",
"EPOCH": "2026-11-06T23:13:58.706976",
"MEAN_MOTION": 1.64500989,
"ECCENTRICITY": 0.00006423,
"INCLINATION": 55.3268,
"RA_OF_ASC_NODE": 99.6402,
"ARG_OF_PERICENTER": 142.2949,
"MEAN_ANOMALY": 217.6892,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 38858,
"ELEMENT_SET_NO": 999,
"REV_AT_EPOCH": 1548,
"BSTAR": 0,
"MEAN_MOTION_DOT": 2.4e-7,
"MEAN_MOTION_DDOT": 0
}