Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.944456E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T05:37:44+0800
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    1 Object 1

    AOE ID 49729
    NORAD ID 49729
    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-3251 TIANMU-1 22
    Time of Closest Approach 2026-10-21T19:00:16+0000
    Collision Probability (Pc) 2.944456E-6
    Conjunction Distance (km) 1.966 km
    Relative Speed (km/s) 14.438 km/s
    Conjunction Risk Parameters R (Radial): -1.34 | I (In-track): 0.451 | C (Cross-track): 1.365
    Collision Risk Index (CRI) 0.44
    X Position (km) 3089.733 3088.278
    Position Y (km) 4742.267 4742.352
    Position Z (km) -3864.688 -3863.369
    Velocity X (km/s) -6.25 3.32
    Velocity Y (km/s) 0.547 2.902
    Velocity Z (km/s) -4.331 6.219

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3251 TIANMU-1 22
    Semimajor Axis (a) 6848.829 km 6846.060 km
    Eccentricity (e) 0.000141 0.000230
    Inclination (i) 53.1565° 97.4602°
    RAAN 213.6022° 50.2877°
    Perigee Argument 83.0728° 243.4113°
    Mean Anomaly (M) 277.0434° 116.6894°
    Apogee 471.661 km 469.499 km
    Perigee 469.723 km 466.347 km
    Orbit Epoch 2026-10-20T04:26:38+0000 2026-10-20T07:06:59+0000

    STARLINK-3251 & TIANMU-1 22 Collision Probability (Pc) Trend

    STARLINK-3251 & TIANMU-1 22 Collision Probability (Pc) TrendNot Available

    STARLINK-3251 & TIANMU-1 22 Miss Distance (Miss Distance) Trend

    STARLINK-3251 & TIANMU-1 22 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3251Miss 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-3251Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 22Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3251

    No nearby objects data