Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    6.857851E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T02:55:59+0800
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    1 Object 1

    AOE ID 53422
    NORAD ID 53422
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 58661
    NORAD ID 58661
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-4546 TIANMU-1 20
    Time of Closest Approach 2026-10-18T19:53:24+0000
    Collision Probability (Pc) 6.857851E-4
    Conjunction Distance (km) 0.225 km
    Relative Speed (km/s) 13.29 km/s
    Conjunction Risk Parameters R (Radial): 0.202 | I (In-track): -0.045 | C (Cross-track): -0.088
    Collision Risk Index (CRI) 0.92
    X Position (km) 2251.155 2251.256
    Position Y (km) 3730.375 3730.402
    Position Z (km) -5281.064 -5281.263
    Velocity X (km/s) -7.168 4.307
    Velocity Y (km/s) 2.032 4.127
    Velocity Z (km/s) -1.621 4.748

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4546 TIANMU-1 20
    Semimajor Axis (a) 6840.930 km 6840.619 km
    Eccentricity (e) 0.000112 0.000582
    Inclination (i) 53.1579° 97.4553°
    RAAN 177.1176° 49.4364°
    Perigee Argument 97.3143° 234.3622°
    Mean Anomaly (M) 262.7987° 125.7079°
    Apogee 463.559 km 466.466 km
    Perigee 462.027 km 458.498 km
    Orbit Epoch 2026-10-18T01:35:21+0000 2026-10-18T12:17:14+0000

    STARLINK-4546 & TIANMU-1 20 Collision Probability (Pc) Trend

    STARLINK-4546 & TIANMU-1 20 Collision Probability (Pc) TrendNot Available

    STARLINK-4546 & TIANMU-1 20 Miss Distance (Miss Distance) Trend

    STARLINK-4546 & TIANMU-1 20 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4546Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANMU-1 20Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4546Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 20Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4546

    No nearby objects data