Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    3.444475E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T18:30:22+0800
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    1 Object 1

    AOE ID 58181
    NORAD ID 58181
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 58700
    NORAD ID 58700
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-30821 TIANMU-1 15
    Time of Closest Approach 2026-10-28T17:12:33+0000
    Collision Probability (Pc) 3.444475E-5
    Conjunction Distance (km) 0.918 km
    Relative Speed (km/s) 13.675 km/s
    Conjunction Risk Parameters R (Radial): -0.631 | I (In-track): -0.283 | C (Cross-track): -0.601
    Collision Risk Index (CRI) 0.66
    X Position (km) 3889.981 3890.883
    Position Y (km) -4168.668 -4168.829
    Position Z (km) 3807.957 3807.996
    Velocity X (km/s) 3.527 1.987
    Velocity Y (km/s) 6.053 -3.874
    Velocity Z (km/s) 3.016 -6.261

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-30821 TIANMU-1 15
    Semimajor Axis (a) 6861.152 km 6860.460 km
    Eccentricity (e) 0.000111 0.000596
    Inclination (i) 43.0031° 97.4638°
    RAAN 282.4455° 126.2710°
    Perigee Argument 260.0728° 222.7291°
    Mean Anomaly (M) 99.9998° 137.3486°
    Apogee 483.778 km 486.410 km
    Perigee 482.252 km 478.236 km
    Orbit Epoch 2026-10-26T00:37:54+0000 2026-10-26T23:42:14+0000

    STARLINK-30821 & TIANMU-1 15 Collision Probability (Pc) Trend

    STARLINK-30821 & TIANMU-1 15 Collision Probability (Pc) TrendNot Available

    STARLINK-30821 & TIANMU-1 15 Miss Distance (Miss Distance) Trend

    STARLINK-30821 & TIANMU-1 15 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-30821Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANMU-1 15Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-30821Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 15Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-30821

    No nearby objects data