Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.696215E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T00:58:06+0800
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    1 Object 1

    AOE ID 28220
    NORAD ID 28220
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 53402
    NORAD ID 53402
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter TANSUO 1 STARLINK-4499
    Time of Closest Approach 2026-10-22T04:10:00+0000
    Collision Probability (Pc) 3.696215E-6
    Conjunction Distance (km) 1.806 km
    Relative Speed (km/s) 14.315 km/s
    Conjunction Risk Parameters R (Radial): 1.758 | I (In-track): -0.158 | C (Cross-track): -0.381
    Collision Risk Index (CRI) 0.46
    X Position (km) -4637.375 -4638.607
    Position Y (km) -2495.274 -2495.542
    Position Z (km) 4354.442 4355.735
    Velocity X (km/s) -4.866 5.514
    Velocity Y (km/s) -1.079 -3.784
    Velocity Z (km/s) -5.787 3.693

    Orbital Parameters 国际轨道数据源

    Parameter TANSUO 1 STARLINK-4499
    Semimajor Axis (a) 6833.910 km 6840.871 km
    Eccentricity (e) 0.000404 0.000149
    Inclination (i) 97.8614° 53.1579°
    RAAN 18.5651° 186.1508°
    Perigee Argument 305.4118° 89.9822°
    Mean Anomaly (M) 54.6748° 270.1352°
    Apogee 458.535 km 463.756 km
    Perigee 453.011 km 461.712 km
    Orbit Epoch 2026-10-19T05:14:16+0000 2026-10-18T17:05:07+0000

    TANSUO 1 & STARLINK-4499 Collision Probability (Pc) Trend

    TANSUO 1 & STARLINK-4499 Collision Probability (Pc) TrendNot Available

    TANSUO 1 & STARLINK-4499 Miss Distance (Miss Distance) Trend

    TANSUO 1 & STARLINK-4499 Miss Distance (Miss Distance) TrendNot Available

    TANSUO 1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4499Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TANSUO 1Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4499Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TANSUO 1

    No nearby objects data