Conjunction Event Detail

    High Risk
    High collision probability. Maneuver recommended for primary asset.
    2.016899E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-13T01:28:49+0800
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    1 Object 1

    AOE ID 39319
    NORAD ID 39319
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 53661
    NORAD ID 53661
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter PEGASUS DEB STARLINK-4472
    Time of Closest Approach 2026-09-14T17:22:01+0000
    Collision Probability (Pc) 2.016899E-4
    Conjunction Distance (km) 0.507 km
    Relative Speed (km/s) 15.226 km/s
    Conjunction Risk Parameters R (Radial): -0.221 | I (In-track): 0.011 | C (Cross-track): -0.455
    Collision Risk Index (CRI) 0.81
    X Position (km) 4113.752 4114.224
    Position Y (km) -5055.79 -5055.653
    Position Z (km) -2364.917 -2365.04
    Velocity X (km/s) 2.478 -2.406
    Velocity Y (km/s) -1.241 1.338
    Velocity Z (km/s) 7.125 -7.063

    Orbital Parameters 国际轨道数据源

    Parameter PEGASUS DEB STARLINK-4472
    Semimajor Axis (a) 7046.751 km 6927.639 km
    Eccentricity (e) 0.017961 0.000199
    Inclination (i) 81.9441° 97.2828°
    RAAN 316.3031° 129.3156°
    Perigee Argument 14.9431° 69.3172°
    Mean Anomaly (M) 345.6981° 290.8269°
    Apogee 795.185 km 550.885 km
    Perigee 542.043 km 548.119 km
    Orbit Epoch 2026-09-10T10:22:24+0000 2026-09-12T02:16:35+0000

    PEGASUS DEB & STARLINK-4472 Collision Probability (Pc) Trend

    PEGASUS DEB & STARLINK-4472 Collision Probability (Pc) TrendNot Available

    PEGASUS DEB & STARLINK-4472 Miss Distance (Miss Distance) Trend

    PEGASUS DEB & STARLINK-4472 Miss Distance (Miss Distance) TrendNot Available

    PEGASUS DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4472Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    PEGASUS DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4472Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with PEGASUS DEB

    No nearby objects data