Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.028682E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T16:03:51+0800
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    1 Object 1

    AOE ID 53391
    NORAD ID 53391
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 64720
    NORAD ID 64720
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4521 STARLINK-34572
    Time of Closest Approach 2026-09-04T20:22:14+0000
    Collision Probability (Pc) 1.028682E-5
    Conjunction Distance (km) 1.295 km
    Relative Speed (km/s) 13.372 km/s
    Conjunction Risk Parameters R (Radial): 0.828 | I (In-track): 0.478 | C (Cross-track): -0.872
    Collision Risk Index (CRI) 0.55
    X Position (km) 5261.991 5262.029
    Position Y (km) 4239.959 4241.252
    Position Z (km) 1108.768 1108.753
    Velocity X (km/s) -3.68 -0.752
    Velocity Y (km/s) 2.988 2.789
    Velocity Z (km/s) 5.983 -7.063

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4521 STARLINK-34572
    Semimajor Axis (a) 6848.886 km 6860.219 km
    Eccentricity (e) 0.000146 0.000308
    Inclination (i) 53.1621° 69.9986°
    RAAN 41.5286° 224.7617°
    Perigee Argument 67.0918° 283.3331°
    Mean Anomaly (M) 293.0237° 153.8902°
    Apogee 471.749 km 484.197 km
    Perigee 469.749 km 479.967 km
    Orbit Epoch 2026-09-02T18:12:27+0000 2026-09-03T22:00:02+0000

    STARLINK-4521 & STARLINK-34572 Collision Probability (Pc) Trend

    STARLINK-4521 & STARLINK-34572 Collision Probability (Pc) TrendNot Available

    STARLINK-4521 & STARLINK-34572 Miss Distance (Miss Distance) Trend

    STARLINK-4521 & STARLINK-34572 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4521Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34572Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4521Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34572Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4521

    No nearby objects data