RU | EN | ZH --:-- UTC Sign in

Hors 3

In orbit NORAD 61753 YPXG-5912-9779-4324-1114 Russia

Soyuz 2.1b Fregat-M

Carrier rocket

Cosmodrome Site 1S

Spaceport

8

Observations all time

Mission information
Spacecraft name
Hors 3
Other names
RS81S
Call sign
RS81S
Frequency usage status
Violator
Network
УниверСат
Status
Active
The satellite is in orbit
The network has not received data from this satellite for a long time
Launch and timeline
Carrier rocket
Soyuz 2.1b Fregat-M
Upper stage
Фрегат-М
Spaceport
Cosmodrome Site 1S
Launch time
2024-11-04 23:18:40
Separation time
Satellite appearance
Data for the last 30 days
Orbital parameters of the satellite
Perigee
369.18 km
Apogee
375.73 km
Inclination
97.3°
Period
92.1 min
Semi-major axis
6750.5 km
Velocity
7.69 km/s
Orbital elements
TLE source
Celestrak
TLE updated
2026-10-14 06:09:03 UTC
Two-line elements (TLE)
1 61753U 24199U   26286.94193831  .00067853  00000-0  70951-3 0  9993
2 61753 97.2738 165.7596 0004859 162.9160 197.2264 15.64234910156064
Copy content
Orbit history, past year

Mean elements of every TLE set over the past 365 days, plotted against the epoch of the set. Each source is its own line; click it in the legend to hide it. A jump in altitude is a manoeuvre or a bad set; lines drifting apart are a disagreement between sources. “TLE age” is how many hours have passed since the epoch of the source's freshest set, plotted against when the set reached us, on a logarithmic scale. A set the source repeats unchanged does not reset the age.

Prediction divergence

Each TLE set is propagated with SGP4 to the epoch of the next set from the same source and compared with it, plotted against the epoch of the next set; the tooltip shows how many hours ahead the prediction ran. The logarithmic scale shows the size of the divergence and the tooltip its sign: plus along-track means the prediction is ahead of the satellite. This is how well the sets agree, not the true error: the reference is a TLE too, off by about a kilometre. An outlier is a manoeuvre between sets. Sets more than a week apart are not compared.

Time of closest approach, UTC Object 1 Object 2 Distance, km Speed, km/s Max. probability
2026-10-18 03:56:39 CYGFM05
NORAD 41884
HORS 3 (RS81S)
NORAD 61753
2.741 7.98 5.1e-07
2026-10-18 05:28:49 CYGFM05
NORAD 41884
HORS 3 (RS81S)
NORAD 61753
4.218 7.99 2.2e-07

Data: CelesTrak SOCRATES Plus, computed from TLEs of the public catalog. This is an estimate, not grounds for a manoeuvre: TLEs carry no covariance, and the maximum probability assumes a position error.

All conjunctions of this satellite