Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    3.21635E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T09:48:30+0800
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    1 Object 1

    AOE ID 53017
    NORAD ID 53017
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 57069
    NORAD ID 57069
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4281 STARLINK-5821
    Time of Closest Approach 2026-09-05T04:36:48+0000
    Collision Probability (Pc) 3.21635E-5
    Conjunction Distance (km) 0.897 km
    Relative Speed (km/s) 11.125 km/s
    Conjunction Risk Parameters R (Radial): -0.422 | I (In-track): -0.545 | C (Cross-track): 0.573
    Collision Risk Index (CRI) 0.65
    X Position (km) 5735.511 5734.767
    Position Y (km) -3454.107 -3454.577
    Position Z (km) 1494.822 1494.652
    Velocity X (km/s) 1.282 3.896
    Velocity Y (km/s) 4.688 4.323
    Velocity Z (km/s) 5.877 -4.93

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4281 STARLINK-5821
    Semimajor Axis (a) 6862.072 km 6861.210 km
    Eccentricity (e) 0.000082 0.000142
    Inclination (i) 53.2146° 43.0027°
    RAAN 330.9952° 180.3238°
    Perigee Argument 57.5497° 264.0887°
    Mean Anomaly (M) 103.6462° 95.9803°
    Apogee 484.502 km 484.047 km
    Perigee 483.368 km 482.099 km
    Orbit Epoch 2026-09-02T16:00:02+0000 2026-09-02T02:09:17+0000

    STARLINK-4281 & STARLINK-5821 Collision Probability (Pc) Trend

    STARLINK-4281 & STARLINK-5821 Collision Probability (Pc) TrendNot Available

    STARLINK-4281 & STARLINK-5821 Miss Distance (Miss Distance) Trend

    STARLINK-4281 & STARLINK-5821 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4281Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5821Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4281Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5821Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4281

    No nearby objects data