Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.252388E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T04:34:45+0800
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    1 Object 1

    AOE ID 57257
    NORAD ID 57257
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 58647
    NORAD ID 58647
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-5503 TIANMU-1 13
    Time of Closest Approach 2026-10-20T00:57:37+0000
    Collision Probability (Pc) 4.252388E-6
    Conjunction Distance (km) 1.682 km
    Relative Speed (km/s) 12.884 km/s
    Conjunction Risk Parameters R (Radial): 1.059 | I (In-track): 0.697 | C (Cross-track): -1.105
    Collision Risk Index (CRI) 0.48
    X Position (km) -3094.051 -3094.973
    Position Y (km) 4201.322 4200.937
    Position Z (km) -4458.834 -4460.186
    Velocity X (km/s) -6.702 3.924
    Velocity Y (km/s) -3.263 -3.167
    Velocity Z (km/s) 1.577 -5.709

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5503 TIANMU-1 13
    Semimajor Axis (a) 6861.233 km 6860.730 km
    Eccentricity (e) 0.000175 0.000447
    Inclination (i) 43.0022° 97.3423°
    RAAN 197.9553° 312.2172°
    Perigee Argument 270.6166° 240.2904°
    Mean Anomaly (M) 89.4485° 119.7891°
    Apogee 484.297 km 485.662 km
    Perigee 481.895 km 479.524 km
    Orbit Epoch 2026-10-19T03:18:21+0000 2026-10-19T12:59:34+0000

    STARLINK-5503 & TIANMU-1 13 Collision Probability (Pc) Trend

    STARLINK-5503 & TIANMU-1 13 Collision Probability (Pc) TrendNot Available

    STARLINK-5503 & TIANMU-1 13 Miss Distance (Miss Distance) Trend

    STARLINK-5503 & TIANMU-1 13 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5503Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANMU-1 13Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5503Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 13Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5503

    No nearby objects data