LeoLabs Radar Network
radar · LEO 200–2000 km
Last delivery12m
Expected cadence1h 30m
Objects tracked21,860
Observations 24h486,000
Statenominal
Age against cadence13%
87% of the delivery interval remaining.
Observation and orbit determination
CCSDS CDM + SP ephemeris (OEM)
Fit span48h
1σ position65m
Observations 24h486,000
Obs per object22.2
- Measurement types
- range · range-rate · azimuth · elevation
- Delivered product
- CCSDS CDM + SP ephemeris (OEM)
Radar tracks are weather-independent and give the tightest along-track covariance, which is why they dominate short-notice screening.
Range-rate observations constrain the along-track component directly, which is the axis that dominates conjunction covariance — this is the strongest orbit determination in the network.
Conjunctions screened by this source
2 active
| Event | Primary | Secondary | TCA | Last CDM | CDMs | Pc |
|---|---|---|---|---|---|---|
| CJ-4471 | OG-2 | COSMOS 2251 DEB34454 | T−09:13:48 | 12m ago | 31 | 4.6×10−4 |
| CJ-4465 | OG-5 | SL-8 R/B16182 | T−33:01:48 | 12m ago | 14 | 6.8×10−5 |
Slowest encounter sourced here is 9.16 km/s (hypervelocity). Rectilinear-relative-motion assumption holds; 2-D analytic Pc is valid.