Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.570144E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-23T09:28:27+0800
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    1 Object 1

    AOE ID 3900
    NORAD ID 3900
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 59329
    NORAD ID 59329
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 252 DEB STARLINK-31493
    Time of Closest Approach 2026-10-23T05:42:59+0000
    Collision Probability (Pc) 1.570144E-6
    Conjunction Distance (km) 2.124 km
    Relative Speed (km/s) 7.087 km/s
    Conjunction Risk Parameters R (Radial): -1.2 | I (In-track): -1.545 | C (Cross-track): 0.824
    Collision Risk Index (CRI) 0.39
    X Position (km) -2123.887 -2124.792
    Position Y (km) -4570.006 -4568.112
    Position Z (km) -4662.304 -4661.981
    Velocity X (km/s) 2.725 7.061
    Velocity Y (km/s) -5.72 -2.822
    Velocity Z (km/s) 4.343 -0.454

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 252 DEB STARLINK-31493
    Semimajor Axis (a) 6981.636 km 6861.233 km
    Eccentricity (e) 0.017569 0.000070
    Inclination (i) 62.1962° 43.0029°
    RAAN 277.2232° 346.2185°
    Perigee Argument 302.0649° 271.0610°
    Mean Anomaly (M) 56.3478° 89.0161°
    Apogee 726.163 km 483.578 km
    Perigee 480.835 km 482.614 km
    Orbit Epoch 2026-10-22T08:58:18+0000 2026-10-22T11:17:59+0000

    COSMOS 252 DEB & STARLINK-31493 Collision Probability (Pc) Trend

    COSMOS 252 DEB & STARLINK-31493 Collision Probability (Pc) TrendNot Available

    COSMOS 252 DEB & STARLINK-31493 Miss Distance (Miss Distance) Trend

    COSMOS 252 DEB & STARLINK-31493 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 252 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31493Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 252 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31493Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 252 DEB

    No nearby objects data