Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.123445E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-18T21:46:23+0800
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    1 Object 1

    AOE ID 38759
    NORAD ID 38759
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 58806
    NORAD ID 58806
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SMDC ONE 1.2 STARLINK-31138
    Time of Closest Approach 2026-10-18T21:49:14+0000
    Collision Probability (Pc) 2.123445E-6
    Conjunction Distance (km) 2.136 km
    Relative Speed (km/s) 11.874 km/s
    Conjunction Risk Parameters R (Radial): 1.541 | I (In-track): 0.915 | C (Cross-track): 1.163
    Collision Risk Index (CRI) 0.42
    X Position (km) 5141.708 5143.668
    Position Y (km) -3932.362 -3932.034
    Position Z (km) -2274.67 -2275.453
    Velocity X (km/s) 0.355 4.855
    Velocity Y (km/s) 4.087 3.725
    Velocity Z (km/s) -6.437 4.545

    Orbital Parameters 国际轨道数据源

    Parameter SMDC ONE 1.2 STARLINK-31138
    Semimajor Axis (a) 6875.778 km 6861.202 km
    Eccentricity (e) 0.007412 0.000105
    Inclination (i) 64.6553° 43.0026°
    RAAN 136.1358° 348.7931°
    Perigee Argument 132.9500° 276.3286°
    Mean Anomaly (M) 227.7877° 83.7447°
    Apogee 548.608 km 483.782 km
    Perigee 446.674 km 482.348 km
    Orbit Epoch 2026-10-17T22:52:43+0000 2026-10-18T04:41:08+0000

    SMDC ONE 1.2 & STARLINK-31138 Collision Probability (Pc) Trend

    SMDC ONE 1.2 & STARLINK-31138 Collision Probability (Pc) TrendNot Available

    SMDC ONE 1.2 & STARLINK-31138 Miss Distance (Miss Distance) Trend

    SMDC ONE 1.2 & STARLINK-31138 Miss Distance (Miss Distance) TrendNot Available

    SMDC ONE 1.2Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31138Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SMDC ONE 1.2Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31138Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SMDC ONE 1.2

    No nearby objects data