Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    1.201301E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T05:54:09+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 48487
    NORAD ID 48487
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 52625
    NORAD ID 52625
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-2494 STARLINK-3988
    Time of Closest Approach 2026-10-21T07:38:55+0000
    Collision Probability (Pc) 1.201301E-4
    Conjunction Distance (km) 0.55 km
    Relative Speed (km/s) 8.927 km/s
    Conjunction Risk Parameters R (Radial): 0.536 | I (In-track): -0.097 | C (Cross-track): -0.07
    Collision Risk Index (CRI) 0.77
    X Position (km) -5060.107 -5059.709
    Position Y (km) -78.5 -78.615
    Position Z (km) -4606.71 -4606.35
    Velocity X (km/s) -2.906 3.099
    Velocity Y (km/s) -6.231 -6.139
    Velocity Z (km/s) 3.302 -3.302

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-2494 STARLINK-3988
    Semimajor Axis (a) 6844.659 km 6837.825 km
    Eccentricity (e) 0.000234 0.000090
    Inclination (i) 53.1593° 53.1597°
    RAAN 227.7530° 323.5418°
    Perigee Argument 71.8132° 50.1214°
    Mean Anomaly (M) 26.8441° 309.9868°
    Apogee 468.127 km 460.303 km
    Perigee 464.917 km 459.073 km
    Orbit Epoch 2026-10-20T12:00:03+0000 2026-10-20T02:29:59+0000

    STARLINK-2494 & STARLINK-3988 Collision Probability (Pc) Trend

    STARLINK-2494 & STARLINK-3988 Collision Probability (Pc) TrendNot Available

    STARLINK-2494 & STARLINK-3988 Miss Distance (Miss Distance) Trend

    STARLINK-2494 & STARLINK-3988 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-2494Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-3988Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-2494Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3988Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-2494

    No nearby objects data