Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.52357E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-13T19:52:52+0800
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    1 Object 1

    AOE ID 34451
    NORAD ID 34451
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    Name LUNA-1
    AOE ID 66777
    NORAD ID 66777
    Object Type PAYLOAD
    Country
    TR TR

    Conjunction Constraints

    Parameter COSMOS 2251 DEB LUNA-1
    Time of Closest Approach 2026-10-14T01:16:25+0000
    Collision Probability (Pc) 1.52357E-6
    Conjunction Distance (km) 2.753 km
    Relative Speed (km/s) 15.194 km/s
    Conjunction Risk Parameters R (Radial): 0.586 | I (In-track): -0.207 | C (Cross-track): -2.681
    Collision Risk Index (CRI) 0.39
    X Position (km) 6851.325 6851.9
    Position Y (km) 89.399 86.771
    Position Z (km) -558.624 -559.21
    Velocity X (km/s) -0.605 0.618
    Velocity Y (km/s) 2.093 -0.978
    Velocity Z (km/s) -7.303 7.527

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB LUNA-1
    Semimajor Axis (a) 6880.271 km 6870.155 km
    Eccentricity (e) 0.001862 0.000273
    Inclination (i) 74.0423° 97.4155°
    RAAN 182.1035° 359.0130°
    Perigee Argument 139.0866° 139.7907°
    Mean Anomaly (M) 221.1734° 220.3533°
    Apogee 514.946 km 493.895 km
    Perigee 489.322 km 490.141 km
    Orbit Epoch 2026-10-12T18:28:43+0000 2026-10-12T22:30:58+0000

    COSMOS 2251 DEB & LUNA-1 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & LUNA-1 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & LUNA-1 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & LUNA-1 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    LUNA-1Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    LUNA-1Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data