Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.759872E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-15T02:30:24+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    Name USA 55
    AOE ID 20547
    NORAD ID 20547
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 51757
    NORAD ID 51757
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter USA 55 STARLINK-3459
    Time of Closest Approach 2026-10-14T20:28:21+0000
    Collision Probability (Pc) 1.759872E-6
    Conjunction Distance (km) 2.487 km
    Relative Speed (km/s) 14.627 km/s
    Conjunction Risk Parameters R (Radial): 2.334 | I (In-track): 0.244 | C (Cross-track): 0.824
    Collision Risk Index (CRI) 0.4
    X Position (km) 5767.98 5769.564
    Position Y (km) 3546.91 3548.827
    Position Z (km) 954.45 954.476
    Velocity X (km/s) 1.224 -3.151
    Velocity Y (km/s) 0.107 3.488
    Velocity Z (km/s) -7.522 6.019

    Orbital Parameters 国际轨道数据源

    Parameter USA 55 STARLINK-3459
    Semimajor Axis (a) 6808.775 km 6840.909 km
    Eccentricity (e) 0.005544 0.000123
    Inclination (i) 94.1007° 53.1609°
    RAAN 210.6620° 31.6313°
    Perigee Argument 37.5218° 86.9450°
    Mean Anomaly (M) 322.9887° 273.1693°
    Apogee 468.389 km 463.613 km
    Perigee 392.887 km 461.931 km
    Orbit Epoch 2026-10-14T05:44:49+0000 2026-10-13T13:09:49+0000

    USA 55 & STARLINK-3459 Collision Probability (Pc) Trend

    USA 55 & STARLINK-3459 Collision Probability (Pc) TrendNot Available

    USA 55 & STARLINK-3459 Miss Distance (Miss Distance) Trend

    USA 55 & STARLINK-3459 Miss Distance (Miss Distance) TrendNot Available

    USA 55Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-3459Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    USA 55Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3459Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with USA 55

    No nearby objects data