Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.358786E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T05:35:28+0800
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    1 Object 1

    AOE ID 48865
    NORAD ID 48865
    Object Type PAYLOAD
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 50830
    NORAD ID 50830
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2550 STARLINK-3278
    Time of Closest Approach 2026-10-21T12:31:07+0000
    Collision Probability (Pc) 1.358786E-6
    Conjunction Distance (km) 2.773 km
    Relative Speed (km/s) 12.692 km/s
    Conjunction Risk Parameters R (Radial): -0.142 | I (In-track): 1.548 | C (Cross-track): 2.296
    Collision Risk Index (CRI) 0.38
    X Position (km) 2516.042 2518.528
    Position Y (km) 5611.984 5610.826
    Position Z (km) -3004.413 -3004.816
    Velocity X (km/s) -1.773 -5.665
    Velocity Y (km/s) 4.107 -0.188
    Velocity Z (km/s) 6.183 -5.109

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2550 STARLINK-3278
    Semimajor Axis (a) 6842.527 km 6840.862 km
    Eccentricity (e) 0.000836 0.000142
    Inclination (i) 67.1420° 53.1589°
    RAAN 80.6860° 230.3055°
    Perigee Argument 269.6171° 86.4490°
    Mean Anomaly (M) 90.4025° 273.6675°
    Apogee 470.109 km 463.695 km
    Perigee 458.671 km 461.755 km
    Orbit Epoch 2026-10-20T13:10:04+0000 2026-10-20T05:53:30+0000

    COSMOS 2550 & STARLINK-3278 Collision Probability (Pc) Trend

    COSMOS 2550 & STARLINK-3278 Collision Probability (Pc) TrendNot Available

    COSMOS 2550 & STARLINK-3278 Miss Distance (Miss Distance) Trend

    COSMOS 2550 & STARLINK-3278 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2550Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-3278Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2550Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3278Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2550

    No nearby objects data