CJ-4471 · COSMOS 2251 DEB
OG-2 Meridian-2 vs NORAD 34454 — debris
Probability of collision4.6×10−4
Time to closest approachT−09:13:48
Decision window3h 19m
Miss distance0.412km
Statecriticalrising
Screening campaign
31 CDMs · ±1σ band
Encounter geometry
Radial0.089km
In-track0.386km
Cross-track0.114km
Relative velocity14.81km/s
Record
- Primary
- OG-2 Meridian-2
- Secondary
- 34454
- Screening source
- LeoLabs Radar Network
- Last CDM
- 12m ago
- CDMs received
- 31
- TCA (UTC)
- 2026-08-01 23:45:48Z
- Decision deadline
- 2026-08-01 17:51:48Z
- Secondary RCS
- 0.032 m²
- Current ±1σ
- 0.22 decades
Burns logged
- MNV-09120.34 m/s · proposed
Maneuver planner
4 downstream
Proposed burnOG-2 · Meridian-2
Delta-v0.34m/s
Propellant0.049kg
Axisin-track
Burn duration44s
- Execute
- 2026-08-01 17:32:00Z
- Upload pass
- Svalbard (SG-1) · T−02:18:00
Effect on CJ-4471
Pc now4.6×10−4
Pc after8.2×10−8
Miss now0.412km
Miss after4.870km
Station-keeping budget1.4 yr runway
4.771 kg after burnreserve 2.2 · capacity 12.4 kg
Downstream conjunctions4 affected
- COSMOS 2251 DEBresolvedCJ-4471 · T+9.2h4.7×10−48.2×10−8
- SL-16 R/B DEBcreatedCJ-4489 · T+34.1h—3.3×10−6
- FENGYUN 1C DEBcreatedCJ-4491 · T+51.2h—1.1×10−6
- COSMOS 2251 DEBimprovedCJ-4463 · T+61.4h5.2×10−61.1×10−7
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