Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.41446E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T08:06:04+0800
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    1 Object 1

    AOE ID 53855
    NORAD ID 53855
    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-4703 TIANMU-1 20
    Time of Closest Approach 2026-09-14T03:56:17+0000
    Collision Probability (Pc) 1.41446E-6
    Conjunction Distance (km) 2.802 km
    Relative Speed (km/s) 13.963 km/s
    Conjunction Risk Parameters R (Radial): -1.636 | I (In-track): -0.932 | C (Cross-track): 2.075
    Collision Risk Index (CRI) 0.38
    X Position (km) -4459.09 -4457.902
    Position Y (km) -1834.226 -1831.702
    Position Z (km) 4854.573 4854.311
    Velocity X (km/s) 5.105 -5.468
    Velocity Y (km/s) -4.926 -0.728
    Velocity Z (km/s) 2.82 -5.276

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4703 TIANMU-1 20
    Semimajor Axis (a) 6848.837 km 6842.182 km
    Eccentricity (e) 0.000138 0.000726
    Inclination (i) 53.1572° 97.4520°
    RAAN 165.8536° 12.1701°
    Perigee Argument 93.8172° 26.7244°
    Mean Anomaly (M) 266.2988° 333.4371°
    Apogee 471.647 km 469.016 km
    Perigee 469.753 km 459.074 km
    Orbit Epoch 2026-09-11T11:27:38+0000 2026-09-11T14:17:52+0000

    STARLINK-4703 & TIANMU-1 20 Collision Probability (Pc) Trend

    STARLINK-4703 & TIANMU-1 20 Collision Probability (Pc) TrendNot Available

    STARLINK-4703 & TIANMU-1 20 Miss Distance (Miss Distance) Trend

    STARLINK-4703 & TIANMU-1 20 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4703Miss 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-4703Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 20Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4703

    No nearby objects data