Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.979753E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T03:37:02+0800
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    1 Object 1

    AOE ID 52998
    NORAD ID 52998
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66139
    NORAD ID 66139
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4254 STARLINK-35549
    Time of Closest Approach 2026-10-21T19:15:19+0000
    Collision Probability (Pc) 1.979753E-6
    Conjunction Distance (km) 1.931 km
    Relative Speed (km/s) 7.127 km/s
    Conjunction Risk Parameters R (Radial): -1.096 | I (In-track): -1.402 | C (Cross-track): -0.745
    Collision Risk Index (CRI) 0.41
    X Position (km) 4553.172 4552.752
    Position Y (km) 914.363 912.659
    Position Z (km) -5030.224 -5029.421
    Velocity X (km/s) -3.892 1.241
    Velocity Y (km/s) 6.095 7.125
    Velocity Z (km/s) -2.417 2.418

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4254 STARLINK-35549
    Semimajor Axis (a) 6840.880 km 6840.813 km
    Eccentricity (e) 0.000121 0.000008
    Inclination (i) 53.1579° 53.1615°
    RAAN 150.0535° 78.0596°
    Perigee Argument 91.3669° 315.7556°
    Mean Anomaly (M) 268.7472° 44.3441°
    Apogee 463.569 km 462.728 km
    Perigee 461.917 km 462.624 km
    Orbit Epoch 2026-10-19T00:31:41+0000 2026-10-19T03:27:16+0000

    STARLINK-4254 & STARLINK-35549 Collision Probability (Pc) Trend

    STARLINK-4254 & STARLINK-35549 Collision Probability (Pc) TrendNot Available

    STARLINK-4254 & STARLINK-35549 Miss Distance (Miss Distance) Trend

    STARLINK-4254 & STARLINK-35549 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4254Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35549Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4254Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35549Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4254

    No nearby objects data