- Earth-watching satellite
- KITSAT 3
- NORAD 25756
- 1999-029A
- Low Earth orbit
Current orbit
View on live mapOrbit began over the Pacific Ocean
Orbit ends over the Pacific Ocean
Sunlit since
Enters the Earth’s shadow
In view from you
Nobody watches Uribyol-3 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 Uribyol-3, 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 too faint for the naked eye. What it is up there for reaches the ground as pictures and measurements, not as a light in the sky.
Timeline
- Launch
Launched, on the day GCAT records. Source
- Close approach
On Saturday, Oct 10 at 10:52 AM UTC, a fragment of Fengyun 1C (NORAD 30648) was to pass within 889 m of Kitsat 3 (NORAD 25756). The chance was about 1 in 10,000.
Summary
Over Antarctica LIVE
Where is Uribyol-3?
At 5:37:02 PM UTC Uribyol-3 was over Antarctica (77.4° S, 83.1° E), 737 km up, moving at 7.49 km/s and in sunlight.
What is Uribyol-3?
A satellite that watches the Earth in low Earth orbit, in space since May 26, 1999.
Can I see Uribyol-3?
No, not with the naked eye: no brightness has been published for Uribyol-3, and nothing here estimates one; what people use is its pictures and measurements of the Earth.
General
- Operator
- Korea Advanced Institute for Space Technology
- State
- Great Han People's Nation
- Built by
- Korea Advanced Institute for Space Technology
- What it is
- Earth-watching satellite
- Launched
- Mass
- 110 kg
- Operating
- Orbit class
- Low 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
- 5:37 PM UTC
- Station time (UTC)
- 5:37 PM UTC
- Latitude / longitude
- 77.4° S, 83.1° E
- Altitude
- 737 km
- Speed
- 7.49 km/s (26,946 km/h)
- Course
- north-west
- Light
- In sunlight until 5:51 PM UTC
- Inclination
- 98.6°
- Orbital period
- 98.9 minutes
- Orbits per day
- 14.56
- This orbit
- 694 to 713 km
- In shadow
- 25 minutes of each orbit
- In view from
- Within 2,000 km of the point below it
- Elements epoch
- Nov 8, 2026, 1:29 AM, 16 hours old
- Source
- Position from Space-Track orbital elements of Nov 8, 2026, 1:29 AM, 16 hours old.
No operator publishes an ephemeris for Uribyol-3, so every position here comes from its orbital elements.
In orbit
- Close approaches
- 1 reported. No close approach to Uribyol-3 is reported for the next three 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
Uribyol-3 shares its launch, 1999-029, with 3 other bodies the catalogue lists in orbit.
| Body | What it is |
|---|---|
| TUBSAT | Earth-watching satellite |
| IRS P4 (OCEANSAT 1) | Earth-watching satellite |
| PSLV 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.
Beside the others
| Satellite | Typical altitude | Orbital period | Mass | In space since |
|---|---|---|---|---|
| Uribyol-3 | 694 to 713 km | 99 minutes | 110 kg | 1999 |
| Landsat 9 | 702 to 704 km | 99 minutes | about 2.7 t | 2021 |
| Landsat 8 | 702 to 703 km | 99 minutes | about 2.8 t | 2013 |
| Sentinel-1C | 695 to 697 km | 99 minutes | about 2.2 t | 2024 |
| Sentinel-1D | 695 to 697 km | 99 minutes | about 2.2 t | 2025 |
| Sentinel-1A | 693 to 695 km | 99 minutes | about 2.2 t | 2014 |
Data and API
The current elements from Space-Track as an OMM object, epoch Nov 8, 2026, 1:29 AM, 16 hours old.
{
"OBJECT_NAME": "KITSAT 3",
"OBJECT_ID": "1999-029A",
"EPOCH": "2026-11-08T01:29:36.757536",
"MEAN_MOTION": 14.55857565,
"ECCENTRICITY": 0.00132872,
"INCLINATION": 98.6016,
"RA_OF_ASC_NODE": 352.1743,
"ARG_OF_PERICENTER": 177.0718,
"MEAN_ANOMALY": 183.0559,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 25756,
"ELEMENT_SET_NO": 999,
"REV_AT_EPOCH": 45596,
"BSTAR": 0.000066709041,
"MEAN_MOTION_DOT": 0.00000244,
"MEAN_MOTION_DDOT": 0
}