Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.351813E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-31T10:08:14+0800
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    1 Object 1

    AOE ID 38486
    NORAD ID 38486
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    Name ALOS 2
    AOE ID 39766
    NORAD ID 39766
    Object Type PAYLOAD
    Country
    JP JP

    Conjunction Constraints

    Parameter COSMOS 2251 DEB ALOS 2
    Time of Closest Approach 2026-11-01T18:52:07+0000
    Collision Probability (Pc) 1.351813E-6
    Conjunction Distance (km) 2.802 km
    Relative Speed (km/s) 12.905 km/s
    Conjunction Risk Parameters R (Radial): -2.777 | I (In-track): 0.178 | C (Cross-track): -0.318
    Collision Risk Index (CRI) 0.38
    X Position (km) 1895.798 1896.884
    Position Y (km) 406.734 406.775
    Position Z (km) 6724.256 6726.838
    Velocity X (km/s) -1.851 -5.361
    Velocity Y (km/s) 7.311 -4.99
    Velocity Z (km/s) 0.102 1.809

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB ALOS 2
    Semimajor Axis (a) 7000.271 km 7009.081 km
    Eccentricity (e) 0.002995 0.000148
    Inclination (i) 73.9379° 97.9238°
    RAAN 288.5588° 38.7001°
    Perigee Argument 348.4525° 95.4082°
    Mean Anomaly (M) 186.5393° 264.7297°
    Apogee 643.102 km 631.978 km
    Perigee 601.166 km 629.910 km
    Orbit Epoch 2026-10-30T17:02:33+0000 2026-10-30T11:20:20+0000

    COSMOS 2251 DEB & ALOS 2 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & ALOS 2 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & ALOS 2 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & ALOS 2 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ALOS 2Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    ALOS 2Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data