Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.276768E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T21:28:09+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 53399
    NORAD ID 53399
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 54091
    NORAD ID 54091
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4528 STARLINK-5221
    Time of Closest Approach 2026-10-30T14:46:18+0000
    Collision Probability (Pc) 1.276768E-6
    Conjunction Distance (km) 2.788 km
    Relative Speed (km/s) 11.545 km/s
    Conjunction Risk Parameters R (Radial): 2.677 | I (In-track): 0.513 | C (Cross-track): -0.584
    Collision Risk Index (CRI) 0.37
    X Position (km) 5587.273 5584.733
    Position Y (km) -2850.107 -2849.683
    Position Z (km) -2739.867 -2738.8
    Velocity X (km/s) 0.214 4.324
    Velocity Y (km/s) 5.495 3.399
    Velocity Z (km/s) -5.291 5.292

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4528 STARLINK-5221
    Semimajor Axis (a) 6840.750 km 6837.861 km
    Eccentricity (e) 0.000103 0.000125
    Inclination (i) 53.1590° 53.1591°
    RAAN 146.8264° 4.7229°
    Perigee Argument 84.2126° 86.1504°
    Mean Anomaly (M) 275.8995° 78.2290°
    Apogee 463.321 km 460.581 km
    Perigee 461.905 km 458.867 km
    Orbit Epoch 2026-10-27T20:12:18+0000 2026-10-27T22:00:02+0000

    STARLINK-4528 & STARLINK-5221 Collision Probability (Pc) Trend

    STARLINK-4528 & STARLINK-5221 Collision Probability (Pc) TrendNot Available

    STARLINK-4528 & STARLINK-5221 Miss Distance (Miss Distance) Trend

    STARLINK-4528 & STARLINK-5221 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4528Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5221Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4528Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5221Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4528

    No nearby objects data