Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.583531E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T15:02:00+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 25442
    NORAD ID 25442
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 55652
    NORAD ID 55652
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter PEGASUS DEB STARLINK-5487
    Time of Closest Approach 2026-09-11T15:31:08+0000
    Collision Probability (Pc) 3.583531E-6
    Conjunction Distance (km) 1.831 km
    Relative Speed (km/s) 14.497 km/s
    Conjunction Risk Parameters R (Radial): 1.035 | I (In-track): -0.448 | C (Cross-track): -1.441
    Collision Risk Index (CRI) 0.46
    X Position (km) -2795.068 -2793.294
    Position Y (km) -4887.817 -4887.729
    Position Z (km) 4072.834 4072.391
    Velocity X (km/s) 3.324 0.776
    Velocity Y (km/s) 3.09 -5.086
    Velocity Z (km/s) 6.136 -5.56

    Orbital Parameters 国际轨道数据源

    Parameter PEGASUS DEB STARLINK-5487
    Semimajor Axis (a) 7059.022 km 6950.190 km
    Eccentricity (e) 0.019684 0.000253
    Inclination (i) 81.7479° 69.9991°
    RAAN 236.4781° 77.7827°
    Perigee Argument 3.3145° 267.7778°
    Mean Anomaly (M) 356.9305° 92.3092°
    Apogee 819.835 km 573.811 km
    Perigee 541.935 km 570.295 km
    Orbit Epoch 2026-09-09T09:13:27+0000 2026-09-10T18:03:41+0000

    PEGASUS DEB & STARLINK-5487 Collision Probability (Pc) Trend

    PEGASUS DEB & STARLINK-5487 Collision Probability (Pc) TrendNot Available

    PEGASUS DEB & STARLINK-5487 Miss Distance (Miss Distance) Trend

    PEGASUS DEB & STARLINK-5487 Miss Distance (Miss Distance) TrendNot Available

    PEGASUS DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5487Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    PEGASUS DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5487Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with PEGASUS DEB

    No nearby objects data