Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.05809E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T03:00:49+0800
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    1 Object 1

    AOE ID 53637
    NORAD ID 53637
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 58662
    NORAD ID 58662
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-4396 TIANMU-1 21
    Time of Closest Approach 2026-10-18T19:57:56+0000
    Collision Probability (Pc) 2.05809E-6
    Conjunction Distance (km) 2.235 km
    Relative Speed (km/s) 13.31 km/s
    Conjunction Risk Parameters R (Radial): 2.083 | I (In-track): 0.405 | C (Cross-track): 0.701
    Collision Risk Index (CRI) 0.41
    X Position (km) 3132.063 3132.3
    Position Y (km) 3008.963 3010.042
    Position Z (km) 5271.228 5273.17
    Velocity X (km/s) -3.578 -3.083
    Velocity Y (km/s) 6.556 -5.126
    Velocity Z (km/s) -1.612 4.746

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4396 TIANMU-1 21
    Semimajor Axis (a) 6837.862 km 6832.759 km
    Eccentricity (e) 0.000151 0.000584
    Inclination (i) 53.1630° 97.4620°
    RAAN 293.0766° 52.7407°
    Perigee Argument 98.0834° 226.0668°
    Mean Anomaly (M) 262.0340° 134.0095°
    Apogee 460.757 km 458.610 km
    Perigee 458.693 km 450.634 km
    Orbit Epoch 2026-10-18T00:45:46+0000 2026-10-18T13:29:40+0000

    STARLINK-4396 & TIANMU-1 21 Collision Probability (Pc) Trend

    STARLINK-4396 & TIANMU-1 21 Collision Probability (Pc) TrendNot Available

    STARLINK-4396 & TIANMU-1 21 Miss Distance (Miss Distance) Trend

    STARLINK-4396 & TIANMU-1 21 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4396Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANMU-1 21Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4396Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 21Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4396

    No nearby objects data