Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.518874E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T09:10:32+0800
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    1 Object 1

    AOE ID 51716
    NORAD ID 51716
    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-3543 TIANMU-1 21
    Time of Closest Approach 2026-10-21T18:12:20+0000
    Collision Probability (Pc) 3.518874E-6
    Conjunction Distance (km) 1.582 km
    Relative Speed (km/s) 7.268 km/s
    Conjunction Risk Parameters R (Radial): -1.476 | I (In-track): 0.501 | C (Cross-track): 0.264
    Collision Risk Index (CRI) 0.46
    X Position (km) 3524.239 3523.132
    Position Y (km) 4286.251 4285.207
    Position Z (km) 3991.873 3991.443
    Velocity X (km/s) -6.272 -1.858
    Velocity Y (km/s) 1.256 -4.183
    Velocity Z (km/s) 4.176 6.113

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3543 TIANMU-1 21
    Semimajor Axis (a) 6840.878 km 6832.684 km
    Eccentricity (e) 0.000131 0.000593
    Inclination (i) 53.1599° 97.4618°
    RAAN 29.5479° 53.9962°
    Perigee Argument 89.8451° 221.1818°
    Mean Anomaly (M) 270.2702° 138.8979°
    Apogee 463.640 km 458.602 km
    Perigee 461.842 km 450.492 km
    Orbit Epoch 2026-10-19T06:35:54+0000 2026-10-19T19:10:46+0000

    STARLINK-3543 & TIANMU-1 21 Collision Probability (Pc) Trend

    STARLINK-3543 & TIANMU-1 21 Collision Probability (Pc) TrendNot Available

    STARLINK-3543 & TIANMU-1 21 Miss Distance (Miss Distance) Trend

    STARLINK-3543 & TIANMU-1 21 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3543Miss 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-3543Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 21Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3543

    No nearby objects data