- Earth-watching satellite
- Military
- SHIYAN 28B-01(SY-28B 01)
- NORAD 64753
- 2025-145A
- Low Earth orbit
Current orbit
View on live mapOrbit began over the Atlantic Ocean
Orbit ends over Brazil
Sunlit since
Enters the Earth’s shadow
In view from you
Nobody watches Shiyan 28B-01 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 Shiyan 28B-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 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
Summary
Over the Atlantic Ocean LIVE
Where is Shiyan 28B-01?
At 6:46:02 PM UTC Shiyan 28B-01 was over the Atlantic Ocean (4.1° S, 24° W), 789 km up, moving at 7.46 km/s and in sunlight.
What is Shiyan 28B-01?
A satellite that watches the Earth in low Earth orbit, in space since Jul 3, 2025.
Can I see Shiyan 28B-01?
No, not with the naked eye: no brightness has been published for Shiyan 28B-01, and nothing here estimates one; what people use is its pictures and measurements of the Earth.
General
- Operator
- General Armaments Dept. of the PLA
- State
- China, People's Republic of
- Built by
- Institute of Microsatellite Innovation, CAS
- What it is
- Earth-watching satellite
- Military
- Yes: a defence organisation flies it
- Launched
- Mass
- about 2 t
- Operating
- Yes
- 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, 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
- 6:46 PM UTC
- Station time (UTC)
- 6:46 PM UTC
- Latitude / longitude
- 4.1° S, 24° W
- Altitude
- 789 km
- Speed
- 7.46 km/s (26,867 km/h)
- Course
- east
- Light
- In sunlight until 6:57 PM UTC
- Inclination
- 11°
- Orbital period
- 100.7 minutes
- Orbits per day
- 14.29
- This orbit
- 797 to 802 km
- In shadow
- 33 minutes of each orbit
- In view from
- Within 2,090 km of the point below it
- Elements epoch
- Nov 8, 2026, 1:04 AM, 17 hours old
- Source
- Position from Space-Track orbital elements of Nov 8, 2026, 1:04 AM, 17 hours old.
No operator publishes an ephemeris for Shiyan 28B-01, so every position here comes from its orbital elements.
In orbit
- Close approaches
- No close approach to Shiyan 28B-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 28B-01 shares its launch, 2025-145, with one other body the catalogue lists in orbit.
| Body | What it is |
|---|---|
| CZ-4C 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 |
|---|---|---|---|---|
| Shiyan 28B-01 | 797 to 802 km | 101 minutes | about 2 t | 2025 |
| Sentinel-3A | 802 to 804 km | 101 minutes | about 1.2 t | 2016 |
| Sentinel-3B | 802 to 804 km | 101 minutes | about 1.2 t | 2018 |
| Sentinel-2A | 788 to 790 km | 101 minutes | about 1.1 t | 2015 |
| Sentinel-2B | 788 to 790 km | 101 minutes | about 1.1 t | 2017 |
| Sentinel-2C | 788 to 790 km | 101 minutes | about 1.1 t | 2024 |
Data and API
The current elements from Space-Track as an OMM object, epoch Nov 8, 2026, 1:04 AM, 17 hours old.
{
"OBJECT_NAME": "SHIYAN 28B-01(SY-28B 01)",
"OBJECT_ID": "2025-145A",
"EPOCH": "2026-11-08T01:04:45.546240",
"MEAN_MOTION": 14.29348666,
"ECCENTRICITY": 0.00033603,
"INCLINATION": 10.9982,
"RA_OF_ASC_NODE": 108.9432,
"ARG_OF_PERICENTER": 176.0203,
"MEAN_ANOMALY": 184.0051,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 64753,
"ELEMENT_SET_NO": 999,
"REV_AT_EPOCH": 7052,
"BSTAR": 0.00006394298,
"MEAN_MOTION_DOT": 0.00000597,
"MEAN_MOTION_DDOT": 0
}