Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.682141E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T14:18:56+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 59246
    NORAD ID 59246
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-31121 STARLINK-31284
    Time of Closest Approach 2026-10-21T22:41:36+0000
    Collision Probability (Pc) 1.682141E-5
    Conjunction Distance (km) 0.924 km
    Relative Speed (km/s) 5.08 km/s
    Conjunction Risk Parameters R (Radial): 0.032 | I (In-track): -0.871 | C (Cross-track): 0.304
    Collision Risk Index (CRI) 0.6
    X Position (km) -5292.441 -5292.565
    Position Y (km) -591.209 -590.294
    Position Z (km) -4330.087 -4330.11
    Velocity X (km/s) -0.794 2.389
    Velocity Y (km/s) -7.316 -6.96
    Velocity Z (km/s) 1.971 -1.972

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31121 STARLINK-31284
    Semimajor Axis (a) 6861.273 km 6861.211 km
    Eccentricity (e) 0.000134 0.000165
    Inclination (i) 43.0007° 43.0062°
    RAAN 261.8364° 320.2889°
    Perigee Argument 271.7679° 279.7617°
    Mean Anomaly (M) 88.3019° 80.3048°
    Apogee 484.054 km 484.209 km
    Perigee 482.218 km 481.939 km
    Orbit Epoch 2026-10-19T08:13:00+0000 2026-10-19T08:24:45+0000

    STARLINK-31121 & STARLINK-31284 Collision Probability (Pc) Trend

    STARLINK-31121 & STARLINK-31284 Collision Probability (Pc) TrendNot Available

    STARLINK-31121 & STARLINK-31284 Miss Distance (Miss Distance) Trend

    STARLINK-31121 & STARLINK-31284 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31121Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31284Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-31121Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31284Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31121

    No nearby objects data