Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    5.568221E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-31T19:58:32+0800
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    1 Object 1

    AOE ID 34856
    NORAD ID 34856
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 45754
    NORAD ID 45754
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB STARLINK-1477
    Time of Closest Approach 2026-10-31T22:07:45+0000
    Collision Probability (Pc) 5.568221E-6
    Conjunction Distance (km) 1.428 km
    Relative Speed (km/s) 8.879 km/s
    Conjunction Risk Parameters R (Radial): -0.71 | I (In-track): 1.01 | C (Cross-track): 0.718
    Collision Risk Index (CRI) 0.5
    X Position (km) 1357.091 1358.136
    Position Y (km) -3941.417 -3941.083
    Position Z (km) 5445.11 5444.197
    Velocity X (km/s) 5.028 6.858
    Velocity Y (km/s) -3.973 3.27
    Velocity Z (km/s) -4.141 0.656

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB STARLINK-1477
    Semimajor Axis (a) 6873.762 km 6865.723 km
    Eccentricity (e) 0.002695 0.000237
    Inclination (i) 74.0004° 53.0184°
    RAAN 133.9709° 212.7155°
    Perigee Argument 181.9687° 67.1245°
    Mean Anomaly (M) 178.1411° 184.4143°
    Apogee 514.148 km 489.212 km
    Perigee 477.102 km 485.960 km
    Orbit Epoch 2026-10-30T12:29:14+0000 2026-10-31T04:00:03+0000

    COSMOS 2251 DEB & STARLINK-1477 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & STARLINK-1477 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & STARLINK-1477 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & STARLINK-1477 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-1477Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-1477Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data