Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.07829E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T06:49:49+0800
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    1 Object 1

    AOE ID 58685
    NORAD ID 58685
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66488
    NORAD ID 66488
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-31121 STARLINK-35515
    Time of Closest Approach 2026-10-20T03:16:24+0000
    Collision Probability (Pc) 3.07829E-6
    Conjunction Distance (km) 1.671 km
    Relative Speed (km/s) 7.636 km/s
    Conjunction Risk Parameters R (Radial): -0.026 | I (In-track): -1.446 | C (Cross-track): -0.835
    Collision Risk Index (CRI) 0.45
    X Position (km) 2909.316 2910.772
    Position Y (km) -5009.915 -5009.095
    Position Z (km) 3667.722 3667.736
    Velocity X (km/s) 4.682 6.737
    Velocity Y (km/s) 5.085 1.548
    Velocity Z (km/s) 3.224 -3.224

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31121 STARLINK-35515
    Semimajor Axis (a) 6861.273 km 6861.139 km
    Eccentricity (e) 0.000134 0.000164
    Inclination (i) 43.0007° 42.9991°
    RAAN 261.8364° 169.0004°
    Perigee Argument 271.7679° 271.1360°
    Mean Anomaly (M) 88.3019° 88.9303°
    Apogee 484.054 km 484.130 km
    Perigee 482.218 km 481.874 km
    Orbit Epoch 2026-10-19T08:13:00+0000 2026-10-19T01:36:25+0000

    STARLINK-31121 & STARLINK-35515 Collision Probability (Pc) Trend

    STARLINK-31121 & STARLINK-35515 Collision Probability (Pc) TrendNot Available

    STARLINK-31121 & STARLINK-35515 Miss Distance (Miss Distance) Trend

    STARLINK-31121 & STARLINK-35515 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31121Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35515Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-31121Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35515Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31121

    No nearby objects data