Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.782125E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T20:56:12+0800
    View CDM
    Download CDM 1.0

    1 Object 1

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

    2 Object 2

    AOE ID 52560
    NORAD ID 52560
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2550 STARLINK-3956
    Time of Closest Approach 2026-10-30T01:24:19+0000
    Collision Probability (Pc) 1.782125E-5
    Conjunction Distance (km) 1.013 km
    Relative Speed (km/s) 8.701 km/s
    Conjunction Risk Parameters R (Radial): -0.593 | I (In-track): -0.671 | C (Cross-track): 0.474
    Collision Risk Index (CRI) 0.6
    X Position (km) 4034.623 4034.377
    Position Y (km) 1512.838 1511.906
    Position Z (km) -5317.169 -5316.857
    Velocity X (km/s) 2.715 -4.233
    Velocity Y (km/s) 6.045 6.173
    Velocity Z (km/s) 3.777 -1.458

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2550 STARLINK-3956
    Semimajor Axis (a) 6842.563 km 6837.835 km
    Eccentricity (e) 0.000841 0.000117
    Inclination (i) 67.1434° 53.1567°
    RAAN 58.0015° 143.1054°
    Perigee Argument 269.7550° 89.8098°
    Mean Anomaly (M) 90.2640° 270.3040°
    Apogee 470.184 km 460.499 km
    Perigee 458.668 km 458.897 km
    Orbit Epoch 2026-10-28T01:08:27+0000 2026-10-27T20:44:28+0000

    COSMOS 2550 & STARLINK-3956 Collision Probability (Pc) Trend

    COSMOS 2550 & STARLINK-3956 Collision Probability (Pc) TrendNot Available

    COSMOS 2550 & STARLINK-3956 Miss Distance (Miss Distance) Trend

    COSMOS 2550 & STARLINK-3956 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2550Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-3956Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2550Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3956Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2550

    No nearby objects data