- Military
- SHIYAN 12 01 (SY-12 01)
- NORAD 50321
- 2021-129A
- Geostationary
Current orbit
View on live mapOne orbit takes a day, as long as the Earth takes to turn, so Shiyan 12-01 keeps above 83.8° E of the equator and never crosses the sky.
It never rises or sets
Shiyan 12-01 turns with the Earth, standing over one longitude of the equator. From anywhere it can be seen at all it is up day and night, in the same direction, so there is no pass to wait for.
No brightness has been published for Shiyan 12-01, 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 wait for: it never crosses the sky. From the half of the Earth it stands over it keeps the same point day and night, and from the other half it never rises at all.
Timeline
- Launch
Launched, on the day GCAT records. Source
Summary
Over the Indian Ocean LIVE
Where is Shiyan 12-01?
At 5:39:50 PM UTC Shiyan 12-01 was over the Indian Ocean (2.6° S, 83.8° E), 35,733 km up, standing over one longitude of the equator and in sunlight.
What is Shiyan 12-01?
A satellite in geostationary orbit, in space since Dec 23, 2021.
Can I see Shiyan 12-01?
No, not with the naked eye, and it never crosses the sky: Shiyan 12-01 stands over 83.8° E of the equator.
General
- Operator
- Chinese Academy of Space Technology, Beijing (CASC 5th Acad)
- State
- China, People's Republic of
- Built by
- Chinese Academy of Space Technology, Beijing (CASC 5th Acad)
- Military
- Yes: a defence organisation flies it
- Launched
- Mass
- about 3 t
- Operating
- Yes
- Orbit class
- Geostationary
From GCAT, Jonathan McDowell’s general catalogue, licensed CC BY 4.0: the operator, the state, the manufacturer, 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
- 5:39 PM UTC
- Station time (UTC)
- 5:39 PM UTC
- Latitude / longitude
- 2.6° S, 83.8° E
- Altitude
- 35,733 km
- Speed
- 3.08 km/s (11,074 km/h)
- Course
- Stands over 83.8° E
- Light
- In sunlight
- Inclination
- 4°
- Orbital period
- 1,433 minutes
- Orbits per day
- 1
- This orbit
- 35,717 to 35,737 km
- In view from
- Within 7,940 km of the point below it
- Elements epoch
- Oct 15, 2026, 2:14 PM, 24 days old
- Source
- Position from Space-Track orbital elements of Oct 15, 2026, 2:14 PM, 24 days old.
No operator publishes an ephemeris for Shiyan 12-01, so every position here comes from its orbital elements.
In orbit
- Close approaches
- No close approach to Shiyan 12-01 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
Shiyan 12-01 shares its launch, 2021-129, with one other body the catalogue lists in orbit.
| Body | What it is |
|---|---|
| SHIYAN 12 02 (SY-12 02) | Satellite |
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 Oct 15, 2026, 2:14 PM, 24 days old.
{
"OBJECT_NAME": "SHIYAN 12 01 (SY-12 01)",
"OBJECT_ID": "2021-129A",
"EPOCH": "2026-10-15T14:14:25.820160",
"MEAN_MOTION": 1.00488521,
"ECCENTRICITY": 0.00023,
"INCLINATION": 3.9784,
"RA_OF_ASC_NODE": 78.2049,
"ARG_OF_PERICENTER": 182.4753,
"MEAN_ANOMALY": 41.822,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 50321,
"ELEMENT_SET_NO": 999,
"REV_AT_EPOCH": 1770,
"BSTAR": 0,
"MEAN_MOTION_DOT": -3.5e-7,
"MEAN_MOTION_DDOT": 0
}