Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.506532E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T01:18:39+0800
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    1 Object 1

    AOE ID 53020
    NORAD ID 53020
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 59213
    NORAD ID 59213
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4287 STARLINK-31517
    Time of Closest Approach 2026-09-02T18:23:47+0000
    Collision Probability (Pc) 7.506532E-7
    Conjunction Distance (km) 2.819 km
    Relative Speed (km/s) 4.568 km/s
    Conjunction Risk Parameters R (Radial): -2.817 | I (In-track): 0.074 | C (Cross-track): -0.025
    Collision Risk Index (CRI) 0.33
    X Position (km) -1951.67 -1952.405
    Position Y (km) 3823.861 3825.472
    Position Z (km) 5312.481 5314.673
    Velocity X (km/s) -7.303 -5.685
    Velocity Y (km/s) -1.73 -4.897
    Velocity Z (km/s) -1.434 1.433

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4287 STARLINK-31517
    Semimajor Axis (a) 6837.858 km 6840.869 km
    Eccentricity (e) 0.000102 0.000126
    Inclination (i) 53.1628° 53.1615°
    RAAN 9.4631° 51.7688°
    Perigee Argument 83.4099° 80.6843°
    Mean Anomaly (M) 276.7020° 279.4303°
    Apogee 460.417 km 463.597 km
    Perigee 459.025 km 461.867 km
    Orbit Epoch 2026-09-01T20:04:35+0000 2026-09-02T03:59:45+0000

    STARLINK-4287 & STARLINK-31517 Collision Probability (Pc) Trend

    STARLINK-4287 & STARLINK-31517 Collision Probability (Pc) TrendNot Available

    STARLINK-4287 & STARLINK-31517 Miss Distance (Miss Distance) Trend

    STARLINK-4287 & STARLINK-31517 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4287Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31517Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4287Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31517Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4287

    No nearby objects data