Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.026498E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T21:13:23+0800
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    1 Object 1

    AOE ID 56448
    NORAD ID 56448
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 56469
    NORAD ID 56469
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5990 STARLINK-5518
    Time of Closest Approach 2026-09-13T02:19:01+0000
    Collision Probability (Pc) 1.026498E-6
    Conjunction Distance (km) 1.963 km
    Relative Speed (km/s) 2.457 km/s
    Conjunction Risk Parameters R (Radial): -1.745 | I (In-track): 0.885 | C (Cross-track): -0.145
    Collision Risk Index (CRI) 0.35
    X Position (km) -904.852 -905.456
    Position Y (km) 2232.116 2231.218
    Position Z (km) 6513.885 6512.248
    Velocity X (km/s) -6.492 -7.359
    Velocity Y (km/s) -3.876 -1.741
    Velocity Z (km/s) 0.425 -0.426

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5990 STARLINK-5518
    Semimajor Axis (a) 6950.195 km 6948.923 km
    Eccentricity (e) 0.000302 0.000297
    Inclination (i) 70.0009° 70.0015°
    RAAN 35.2471° 15.5436°
    Perigee Argument 266.4730° 263.6607°
    Mean Anomaly (M) 93.6084° 96.4214°
    Apogee 574.157 km 572.850 km
    Perigee 569.959 km 568.722 km
    Orbit Epoch 2026-09-11T19:29:23+0000 2026-09-11T17:52:02+0000

    STARLINK-5990 & STARLINK-5518 Collision Probability (Pc) Trend

    STARLINK-5990 & STARLINK-5518 Collision Probability (Pc) TrendNot Available

    STARLINK-5990 & STARLINK-5518 Miss Distance (Miss Distance) Trend

    STARLINK-5990 & STARLINK-5518 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5990Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5518Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5990Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5518Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5990

    No nearby objects data