Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.472124E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T00:22:41+0800
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    1 Object 1

    AOE ID 21723
    NORAD ID 21723
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 57882
    NORAD ID 57882
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 397 DEB STARLINK-30339
    Time of Closest Approach 2026-10-21T15:40:43+0000
    Collision Probability (Pc) 1.472124E-5
    Conjunction Distance (km) 1.059 km
    Relative Speed (km/s) 8.247 km/s
    Conjunction Risk Parameters R (Radial): -0.911 | I (In-track): 0.448 | C (Cross-track): -0.298
    Collision Risk Index (CRI) 0.58
    X Position (km) 4936.636 4936.234
    Position Y (km) -1221.147 -1220.535
    Position Z (km) -4611.166 -4610.401
    Velocity X (km/s) 5.128 1.022
    Velocity Y (km/s) 3.128 7.496
    Velocity Z (km/s) 4.773 -0.89

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 397 DEB STARLINK-30339
    Semimajor Axis (a) 6963.059 km 6861.212 km
    Eccentricity (e) 0.017702 0.000114
    Inclination (i) 65.6627° 43.0023°
    RAAN 18.3953° 103.4148°
    Perigee Argument 347.2156° 271.2477°
    Mean Anomaly (M) 12.4503° 88.8244°
    Apogee 708.181 km 483.860 km
    Perigee 461.663 km 482.290 km
    Orbit Epoch 2026-10-18T23:37:47+0000 2026-10-19T04:28:56+0000

    COSMOS 397 DEB & STARLINK-30339 Collision Probability (Pc) Trend

    COSMOS 397 DEB & STARLINK-30339 Collision Probability (Pc) TrendNot Available

    COSMOS 397 DEB & STARLINK-30339 Miss Distance (Miss Distance) Trend

    COSMOS 397 DEB & STARLINK-30339 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 397 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30339Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 397 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30339Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 397 DEB

    No nearby objects data