Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    9.36357E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T21:09:50+0800
    View CDM
    Download CDM 1.0

    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 2026-09-06T07:51:30+0000
    Collision Probability (Pc) 9.36357E-5
    Conjunction Distance (km) 0.582 km
    Relative Speed (km/s) 7.637 km/s
    Conjunction Risk Parameters R (Radial): -0.254 | I (In-track): -0.454 | C (Cross-track): 0.258
    Collision Risk Index (CRI) 0.74
    X Position (km) -5742.446 -5742.304
    Position Y (km) -762.492 -761.946
    Position Z (km) 3668.435 3668.295
    Velocity X (km/s) 2.898 -1.16
    Velocity Y (km/s) -6.276 -6.815
    Velocity Z (km/s) 3.223 -3.223

    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