Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.149523E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T05:36:16+0800
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    1 Object 1

    AOE ID 49441
    NORAD ID 49441
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53035
    NORAD ID 53035
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3128 STARLINK-4157
    Time of Closest Approach 2026-10-21T21:04:18+0000
    Collision Probability (Pc) 1.149523E-6
    Conjunction Distance (km) 2.929 km
    Relative Speed (km/s) 10.756 km/s
    Conjunction Risk Parameters R (Radial): -2.922 | I (In-track): 0.131 | C (Cross-track): 0.125
    Collision Risk Index (CRI) 0.36
    X Position (km) -972.393 -972.155
    Position Y (km) 5703.633 5701.165
    Position Z (km) -3658.274 -3656.715
    Velocity X (km/s) -4.852 -5.818
    Velocity Y (km/s) -3.739 1.921
    Velocity Z (km/s) -4.547 4.548

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3128 STARLINK-4157
    Semimajor Axis (a) 6840.772 km 6837.860 km
    Eccentricity (e) 0.000175 0.000128
    Inclination (i) 53.1621° 53.1588°
    RAAN 258.8791° 136.7793°
    Perigee Argument 88.7913° 95.0454°
    Mean Anomaly (M) 271.3290° 265.0695°
    Apogee 463.835 km 460.599 km
    Perigee 461.435 km 458.847 km
    Orbit Epoch 2026-10-20T06:35:31+0000 2026-10-19T23:56:57+0000

    STARLINK-3128 & STARLINK-4157 Collision Probability (Pc) Trend

    STARLINK-3128 & STARLINK-4157 Collision Probability (Pc) TrendNot Available

    STARLINK-3128 & STARLINK-4157 Miss Distance (Miss Distance) Trend

    STARLINK-3128 & STARLINK-4157 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3128Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4157Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3128Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4157Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3128

    No nearby objects data