Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.023997E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-16T15:13:25+0800
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    1 Object 1

    AOE ID 55431
    NORAD ID 55431
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 59659
    NORAD ID 59659
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5643 STARLINK-31881
    Time of Closest Approach 2026-10-16T09:57:19+0000
    Collision Probability (Pc) 9.023997E-7
    Conjunction Distance (km) 2.353 km
    Relative Speed (km/s) 3.865 km/s
    Conjunction Risk Parameters R (Radial): 2.352 | I (In-track): -0.073 | C (Cross-track): 0.019
    Collision Risk Index (CRI) 0.34
    X Position (km) -1942.306 -1943.02
    Position Y (km) -6200.443 -6202.576
    Position Z (km) 2187.362 2188.053
    Velocity X (km/s) 3.306 6.08
    Velocity Y (km/s) 1.35 -0.276
    Velocity Z (km/s) 6.74 4.597

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5643 STARLINK-31881
    Semimajor Axis (a) 6855.195 km 6861.054 km
    Eccentricity (e) 0.000318 0.000057
    Inclination (i) 69.9995° 43.0005°
    RAAN 247.6483° 234.4139°
    Perigee Argument 266.8739° 287.1921°
    Mean Anomaly (M) 93.2073° 72.8868°
    Apogee 479.235 km 483.306 km
    Perigee 474.881 km 482.528 km
    Orbit Epoch 2026-10-15T15:02:05+0000 2026-10-15T21:16:48+0000

    STARLINK-5643 & STARLINK-31881 Collision Probability (Pc) Trend

    STARLINK-5643 & STARLINK-31881 Collision Probability (Pc) TrendNot Available

    STARLINK-5643 & STARLINK-31881 Miss Distance (Miss Distance) Trend

    STARLINK-5643 & STARLINK-31881 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5643Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31881Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5643Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31881Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5643

    No nearby objects data