Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    2.462222E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T05:12:50+0800
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    1 Object 1

    AOE ID 58661
    NORAD ID 58661
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 59210
    NORAD ID 59210
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter TIANMU-1 20 STARLINK-31520
    Time of Closest Approach 2026-10-20T18:51:35+0000
    Collision Probability (Pc) 2.462222E-4
    Conjunction Distance (km) 0.451 km
    Relative Speed (km/s) 13.849 km/s
    Conjunction Risk Parameters R (Radial): 0.276 | I (In-track): 0.162 | C (Cross-track): 0.319
    Collision Risk Index (CRI) 0.83
    X Position (km) 2390.078 2390.167
    Position Y (km) 4077.551 4077.114
    Position Z (km) -4954.278 -4954.214
    Velocity X (km/s) 3.977 -7.095
    Velocity Y (km/s) 3.951 0.995
    Velocity Z (km/s) 5.167 -2.607

    Orbital Parameters 国际轨道数据源

    Parameter TIANMU-1 20 STARLINK-31520
    Semimajor Axis (a) 6840.566 km 6840.804 km
    Eccentricity (e) 0.000587 0.000261
    Inclination (i) 97.4553° 53.1634°
    RAAN 50.4904° 195.6448°
    Perigee Argument 229.9546° 97.0405°
    Mean Anomaly (M) 130.1182° 263.0894°
    Apogee 466.445 km 464.451 km
    Perigee 458.413 km 460.883 km
    Orbit Epoch 2026-10-19T13:19:41+0000 2026-10-19T02:43:00+0000

    TIANMU-1 20 & STARLINK-31520 Collision Probability (Pc) Trend

    TIANMU-1 20 & STARLINK-31520 Collision Probability (Pc) TrendNot Available

    TIANMU-1 20 & STARLINK-31520 Miss Distance (Miss Distance) Trend

    TIANMU-1 20 & STARLINK-31520 Miss Distance (Miss Distance) TrendNot Available

    TIANMU-1 20Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31520Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TIANMU-1 20Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31520Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TIANMU-1 20

    No nearby objects data