Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.483466E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T01:19:09+0800
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    1 Object 1

    AOE ID 44424
    NORAD ID 44424
    Object Type PAYLOAD
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 58487
    NORAD ID 58487
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2538 STARLINK-30987
    Time of Closest Approach 2026-10-30T06:22:11+0000
    Collision Probability (Pc) 1.483466E-5
    Conjunction Distance (km) 1.178 km
    Relative Speed (km/s) 14.109 km/s
    Conjunction Risk Parameters R (Radial): 0.253 | I (In-track): -0.423 | C (Cross-track): 1.07
    Collision Risk Index (CRI) 0.58
    X Position (km) 5606.535 5606.989
    Position Y (km) 2852.994 2852.106
    Position Z (km) -2744.536 -2745.162
    Velocity X (km/s) 3.201 -4.394
    Velocity Y (km/s) 0.397 4.587
    Velocity Z (km/s) 6.915 -4.211

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2538 STARLINK-30987
    Semimajor Axis (a) 6878.125 km 6861.049 km
    Eccentricity (e) 0.003949 0.000245
    Inclination (i) 97.5797° 42.9990°
    RAAN 20.5968° 196.9912°
    Perigee Argument 305.0997° 288.1197°
    Mean Anomaly (M) 54.6539° 71.9388°
    Apogee 527.152 km 484.592 km
    Perigee 472.824 km 481.232 km
    Orbit Epoch 2026-10-27T05:53:20+0000 2026-10-27T02:06:17+0000

    COSMOS 2538 & STARLINK-30987 Collision Probability (Pc) Trend

    COSMOS 2538 & STARLINK-30987 Collision Probability (Pc) TrendNot Available

    COSMOS 2538 & STARLINK-30987 Miss Distance (Miss Distance) Trend

    COSMOS 2538 & STARLINK-30987 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2538Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30987Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2538Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30987Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2538

    No nearby objects data