Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    5.20468E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T02:45:18+0800
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    1 Object 1

    AOE ID 58484
    NORAD ID 58484
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 63862
    NORAD ID 63862
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-30991 STARLINK-33878
    Time of Closest Approach 2026-09-13T20:14:34+0000
    Collision Probability (Pc) 5.20468E-7
    Conjunction Distance (km) 2.409 km
    Relative Speed (km/s) 1.336 km/s
    Conjunction Risk Parameters R (Radial): 0.199 | I (In-track): 2.392 | C (Cross-track): -0.21
    Collision Risk Index (CRI) 0.29
    X Position (km) -5031.668 -5031.44
    Position Y (km) 168.28 170.674
    Position Z (km) 4652.864 4652.73
    Velocity X (km/s) -0.71 0.194
    Velocity Y (km/s) -7.578 -7.609
    Velocity Z (km/s) -0.493 0.489

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-30991 STARLINK-33878
    Semimajor Axis (a) 6861.196 km 6861.155 km
    Eccentricity (e) 0.000130 0.000156
    Inclination (i) 43.0043° 43.0001°
    RAAN 97.0173° 111.3841°
    Perigee Argument 263.5736° 269.3996°
    Mean Anomaly (M) 96.4968° 90.6677°
    Apogee 483.951 km 484.090 km
    Perigee 482.167 km 481.946 km
    Orbit Epoch 2026-09-10T22:46:45+0000 2026-09-11T00:23:54+0000

    STARLINK-30991 & STARLINK-33878 Collision Probability (Pc) Trend

    STARLINK-30991 & STARLINK-33878 Collision Probability (Pc) TrendNot Available

    STARLINK-30991 & STARLINK-33878 Miss Distance (Miss Distance) Trend

    STARLINK-30991 & STARLINK-33878 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-30991Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33878Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-30991Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33878Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-30991

    No nearby objects data