Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    4.473436E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T19:27:45+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 66224
    NORAD ID 66224
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter USA 55 STARLINK-35733
    Time of Closest Approach 2026-10-23T14:10:21+0000
    Collision Probability (Pc) 4.473436E-5
    Conjunction Distance (km) 0.724 km
    Relative Speed (km/s) 6.584 km/s
    Conjunction Risk Parameters R (Radial): -0.548 | I (In-track): 0.428 | C (Cross-track): 0.201
    Collision Risk Index (CRI) 0.68
    X Position (km) 4433.29 4433.025
    Position Y (km) 3552.612 3552.608
    Position Z (km) 3802.421 3801.748
    Velocity X (km/s) 3.728 -1.146
    Velocity Y (km/s) 2.147 6.145
    Velocity Z (km/s) -6.29 -4.391

    Orbital Parameters 国际轨道数据源

    Parameter USA 55 STARLINK-35733
    Semimajor Axis (a) 6808.513 km 6840.823 km
    Eccentricity (e) 0.005415 0.000130
    Inclination (i) 94.1007° 53.1560°
    RAAN 214.4371° 264.1734°
    Perigee Argument 12.3510° 73.6104°
    Mean Anomaly (M) 347.9058° 286.5041°
    Apogee 467.244 km 463.574 km
    Perigee 393.508 km 461.798 km
    Orbit Epoch 2026-10-20T21:49:34+0000 2026-10-20T07:25:27+0000

    USA 55 & STARLINK-35733 Collision Probability (Pc) Trend

    USA 55 & STARLINK-35733 Collision Probability (Pc) TrendNot Available

    USA 55 & STARLINK-35733 Miss Distance (Miss Distance) Trend

    USA 55 & STARLINK-35733 Miss Distance (Miss Distance) TrendNot Available

    USA 55Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35733Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    USA 55Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35733Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with USA 55

    No nearby objects data