Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.115448E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T23:29:50+0800
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    1 Object 1

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

    2 Object 2

    Name HJS-10D
    AOE ID 69323
    NORAD ID 69323
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter COSMOS 2251 DEB HJS-10D
    Time of Closest Approach 2026-10-22T04:04:05+0000
    Collision Probability (Pc) 9.115448E-7
    Conjunction Distance (km) 2.494 km
    Relative Speed (km/s) 4.724 km/s
    Conjunction Risk Parameters R (Radial): -2.479 | I (In-track): 0.253 | C (Cross-track): -0.073
    Collision Risk Index (CRI) 0.34
    X Position (km) -3039.054 -3038.189
    Position Y (km) 3339.257 3338.049
    Position Z (km) -5200.397 -5198.395
    Velocity X (km/s) -5.875 -6.794
    Velocity Y (km/s) 1.709 -2.426
    Velocity Z (km/s) 4.506 2.415

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB HJS-10D
    Semimajor Axis (a) 6875.371 km 6886.098 km
    Eccentricity (e) 0.002822 0.000938
    Inclination (i) 74.0020° 55.0032°
    RAAN 156.4253° 195.5357°
    Perigee Argument 207.1173° 291.9794°
    Mean Anomaly (M) 166.0325° 68.0229°
    Apogee 516.634 km 514.422 km
    Perigee 477.834 km 501.500 km
    Orbit Epoch 2026-10-19T21:10:21+0000 2026-10-20T00:15:26+0000

    COSMOS 2251 DEB & HJS-10D Collision Probability (Pc) Trend

    COSMOS 2251 DEB & HJS-10D Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & HJS-10D Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & HJS-10D Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    HJS-10DMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    HJS-10DCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data