Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.922028E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T21:09:50+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 2026-09-06T09:25:39+0000
    Collision Probability (Pc) 2.922028E-6
    Conjunction Distance (km) 1.701 km
    Relative Speed (km/s) 7.637 km/s
    Conjunction Risk Parameters R (Radial): -0.254 | I (In-track): 1.455 | C (Cross-track): -0.844
    Collision Risk Index (CRI) 0.44
    X Position (km) -5747.716 -5747.294
    Position Y (km) -724.397 -726.039
    Position Z (km) 3667.892 3667.754
    Velocity X (km/s) 2.856 -1.203
    Velocity Y (km/s) -6.295 -6.807
    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) 6861.190 km 6861.129 km
    Eccentricity (e) 0.000142 0.000108
    Inclination (i) 43.0023° 43.0022°
    RAAN 151.8294° 60.8405°
    Perigee Argument 270.1956° 274.5692°
    Mean Anomaly (M) 89.8733° 85.5036°
    Apogee 484.027 km 483.733 km
    Perigee 482.079 km 482.251 km
    Orbit Epoch 2026-09-05T01:49:01+0000 2026-09-04T11:21:42+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