Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.604154E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T08:55:25+0800
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    1 Object 1

    AOE ID 35435
    NORAD ID 35435
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    Name ALICE
    AOE ID 39467
    NORAD ID 39467
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB ALICE
    Time of Closest Approach 2026-10-22T05:47:37+0000
    Collision Probability (Pc) 2.604154E-6
    Conjunction Distance (km) 2.051 km
    Relative Speed (km/s) 14.108 km/s
    Conjunction Risk Parameters R (Radial): -0.154 | I (In-track): -0.721 | C (Cross-track): 1.914
    Collision Risk Index (CRI) 0.43
    X Position (km) -3718.95 -3720.272
    Position Y (km) 298.573 299.967
    Position Z (km) -5912.194 -5911.474
    Velocity X (km/s) -5.762 2.496
    Velocity Y (km/s) -3.446 6.949
    Velocity Z (km/s) 3.44 -1.33

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB ALICE
    Semimajor Axis (a) 6986.264 km 6911.286 km
    Eccentricity (e) 0.001296 0.016539
    Inclination (i) 74.0073° 120.4609°
    RAAN 212.5878° 52.8774°
    Perigee Argument 229.8926° 124.2625°
    Mean Anomaly (M) 196.9382° 237.4227°
    Apogee 617.182 km 647.458 km
    Perigee 599.072 km 418.840 km
    Orbit Epoch 2026-10-17T03:38:24+0000 2026-10-19T06:47:37+0000

    COSMOS 2251 DEB & ALICE Collision Probability (Pc) Trend

    COSMOS 2251 DEB & ALICE Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & ALICE Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & ALICE Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ALICEMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    ALICECollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data