- Earth-watching satellite
- Military
- YAOGAN 27
- NORAD 40878
- 2015-040A
- Low Earth orbit
Current orbit
View on live mapOrbit began over the Indian Ocean
Orbit ends over the Indian Ocean
In view from you
Nobody watches Yaogan Weixing 27 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 Yaogan Weixing 27, 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 Yaogan Weixing 27?
At 6:46:07 PM UTC Yaogan Weixing 27 was over the Atlantic Ocean (48° N, 47.9° W), 1,213 km up, moving at 7.25 km/s and in sunlight.
What is Yaogan Weixing 27?
A satellite that watches the Earth in low Earth orbit, in space since Aug 27, 2015.
Can I see Yaogan Weixing 27?
No, not with the naked eye: no brightness has been published for Yaogan Weixing 27, 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
- Shanghai Academy of Space Technology (CASC 8th Acad)
- What it is
- Earth-watching satellite
- Military
- Yes: a defence organisation flies it
- Launched
- Mass
- about 1 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
- 48° N, 47.9° W
- Altitude
- 1,213 km
- Speed
- 7.25 km/s (26,100 km/h)
- Course
- north
- Light
- In sunlight
- Inclination
- 100.1°
- Orbital period
- 109.4 minutes
- Orbits per day
- 13.16
- This orbit
- 1,191 to 1,203 km
- In shadow
- None of this orbit
- In view from
- Within 2,690 km of the point below it
- Elements epoch
- Nov 8, 2026, 7:34 AM, 11 hours old
- Source
- Position from Space-Track orbital elements of Nov 8, 2026, 7:34 AM, 11 hours old.
No operator publishes an ephemeris for Yaogan Weixing 27, so every position here comes from its orbital elements.
In orbit
- Close approaches
- No close approach to Yaogan Weixing 27 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
Yaogan Weixing 27 shares its launch, 2015-040, with 3 other bodies the catalogue lists in orbit.
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 |
|---|---|---|---|---|
| Yaogan Weixing 27 | 1,191 to 1,203 km | 109 minutes | about 1 t | 2015 |
| Sentinel-6MF | 1,332 to 1,344 km | 112 minutes | about 1.2 t | 2020 |
| Sentinel-6B | 1,332 to 1,344 km | 112 minutes | about 1.2 t | 2025 |
| Sentinel-5P | 826 to 828 km | 101 minutes | 820 kg | 2017 |
| Suomi NPP | 825 to 829 km | 101 minutes | about 2.1 t | 2011 |
| MetOp-SG A1 | 820 to 821 km | 101 minutes | about 4 t | 2025 |
Data and API
The current elements from Space-Track as an OMM object, epoch Nov 8, 2026, 7:34 AM, 11 hours old.
{
"OBJECT_NAME": "YAOGAN 27",
"OBJECT_ID": "2015-040A",
"EPOCH": "2026-11-08T07:34:27.765696",
"MEAN_MOTION": 13.16077486,
"ECCENTRICITY": 0.00075976,
"INCLINATION": 100.134,
"RA_OF_ASC_NODE": 292.5479,
"ARG_OF_PERICENTER": 241.3136,
"MEAN_ANOMALY": 118.7215,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 40878,
"ELEMENT_SET_NO": 999,
"REV_AT_EPOCH": 53662,
"BSTAR": 0.0014177734,
"MEAN_MOTION_DOT": 0.00000496,
"MEAN_MOTION_DDOT": 0
}