Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.799879E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T00:52:00+0800
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    1 Object 1

    AOE ID 53784
    NORAD ID 53784
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 57399
    NORAD ID 57399
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-4687 TIANMU-1 07
    Time of Closest Approach 2026-10-30T01:20:05+0000
    Collision Probability (Pc) 2.799879E-6
    Conjunction Distance (km) 1.819 km
    Relative Speed (km/s) 9.601 km/s
    Conjunction Risk Parameters R (Radial): 0.057 | I (In-track): -1.409 | C (Cross-track): -1.147
    Collision Risk Index (CRI) 0.44
    X Position (km) 4250.463 4251.401
    Position Y (km) -1368.797 -1369.986
    Position Z (km) 5186.191 5185.183
    Velocity X (km/s) -0.019 -5.858
    Velocity Y (km/s) 7.376 0.338
    Velocity Z (km/s) 1.958 4.881

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4687 TIANMU-1 07
    Semimajor Axis (a) 6848.934 km 6850.631 km
    Eccentricity (e) 0.000216 0.000349
    Inclination (i) 53.1616° 97.2439°
    RAAN 295.6500° 347.8765°
    Perigee Argument 249.5882° 55.4873°
    Mean Anomaly (M) 110.4887° 304.6698°
    Apogee 472.278 km 474.886 km
    Perigee 469.316 km 470.102 km
    Orbit Epoch 2026-10-27T00:59:17+0000 2026-10-27T05:40:23+0000

    STARLINK-4687 & TIANMU-1 07 Collision Probability (Pc) Trend

    STARLINK-4687 & TIANMU-1 07 Collision Probability (Pc) TrendNot Available

    STARLINK-4687 & TIANMU-1 07 Miss Distance (Miss Distance) Trend

    STARLINK-4687 & TIANMU-1 07 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4687Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANMU-1 07Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4687Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 07Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4687

    No nearby objects data