Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.865054E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T23:36:31+0800
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    1 Object 1

    AOE ID 34979
    NORAD ID 34979
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    Name KOYO
    AOE ID 69916
    NORAD ID 69916
    Object Type PAYLOAD
    Country
    TW TW

    Conjunction Constraints

    Parameter COSMOS 2251 DEB KOYO
    Time of Closest Approach 2026-10-22T11:22:58+0000
    Collision Probability (Pc) 3.865054E-6
    Conjunction Distance (km) 1.799 km
    Relative Speed (km/s) 15.085 km/s
    Conjunction Risk Parameters R (Radial): 1.179 | I (In-track): 0.132 | C (Cross-track): -1.352
    Collision Risk Index (CRI) 0.47
    X Position (km) 5277.496 5278.135
    Position Y (km) 1890.522 1892.148
    Position Z (km) 4135.255 4135.682
    Velocity X (km/s) -4.847 4.604
    Velocity Y (km/s) 1.015 0.305
    Velocity Z (km/s) 5.739 -5.997

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB KOYO
    Semimajor Axis (a) 6996.038 km 6972.177 km
    Eccentricity (e) 0.004621 0.000380
    Inclination (i) 74.0393° 97.7411°
    RAAN 13.1419° 191.6994°
    Perigee Argument 10.9871° 124.0560°
    Mean Anomaly (M) 349.2305° 236.1020°
    Apogee 650.232 km 596.691 km
    Perigee 585.570 km 591.389 km
    Orbit Epoch 2026-10-19T15:14:38+0000 2026-10-20T03:59:26+0000

    COSMOS 2251 DEB & KOYO Collision Probability (Pc) Trend

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

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

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

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    KOYOMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    KOYOCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data