Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.682782E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T15:46:22+0800
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    1 Object 1

    AOE ID 53863
    NORAD ID 53863
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58663
    NORAD ID 58663
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-4788 TIANMU-1 22
    Time of Closest Approach 2026-09-13T14:56:01+0000
    Collision Probability (Pc) 2.682782E-6
    Conjunction Distance (km) 2.02 km
    Relative Speed (km/s) 13.911 km/s
    Conjunction Risk Parameters R (Radial): -1.615 | I (In-track): 0.509 | C (Cross-track): 1.1
    Collision Risk Index (CRI) 0.44
    X Position (km) -4447.34 -4448.274
    Position Y (km) -1716.496 -1715.8
    Position Z (km) 4907.967 4909.617
    Velocity X (km/s) 4.97 -5.539
    Velocity Y (km/s) -5.126 -0.613
    Velocity Z (km/s) 2.703 -5.215

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4788 TIANMU-1 22
    Semimajor Axis (a) 6848.841 km 6847.589 km
    Eccentricity (e) 0.000127 0.000456
    Inclination (i) 53.1578° 97.4570°
    RAAN 167.3446° 10.6207°
    Perigee Argument 93.4796° 52.0308°
    Mean Anomaly (M) 266.6350° 308.1344°
    Apogee 471.575 km 472.572 km
    Perigee 469.833 km 466.332 km
    Orbit Epoch 2026-09-10T00:31:39+0000 2026-09-10T22:05:17+0000

    STARLINK-4788 & TIANMU-1 22 Collision Probability (Pc) Trend

    STARLINK-4788 & TIANMU-1 22 Collision Probability (Pc) TrendNot Available

    STARLINK-4788 & TIANMU-1 22 Miss Distance (Miss Distance) Trend

    STARLINK-4788 & TIANMU-1 22 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4788Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANMU-1 22Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4788Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 22Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4788

    No nearby objects data