Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.302961E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-17T00:50:14+0800
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    1 Object 1

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

    2 Object 2

    AOE ID 69516
    NORAD ID 69516
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter USA 55 STARLINK-37323
    Time of Closest Approach 2026-10-17T04:41:21+0000
    Collision Probability (Pc) 1.302961E-6
    Conjunction Distance (km) 2.809 km
    Relative Speed (km/s) 12.186 km/s
    Conjunction Risk Parameters R (Radial): 2.656 | I (In-track): -0.56 | C (Cross-track): 0.726
    Collision Risk Index (CRI) 0.37
    X Position (km) 3714.087 3711.902
    Position Y (km) 1889.556 1889.199
    Position Z (km) -5435.888 -5434.16
    Velocity X (km/s) -4.944 -2.513
    Velocity Y (km/s) -3.518 7.156
    Velocity Z (km/s) -4.58 0.771

    Orbital Parameters 国际轨道数据源

    Parameter USA 55 STARLINK-37323
    Semimajor Axis (a) 6808.696 km 6840.744 km
    Eccentricity (e) 0.005511 0.000207
    Inclination (i) 94.1005° 53.1592°
    RAAN 211.7980° 111.6180°
    Perigee Argument 29.9944° 89.0761°
    Mean Anomaly (M) 330.4449° 271.0479°
    Apogee 468.082 km 464.025 km
    Perigee 393.036 km 461.189 km
    Orbit Epoch 2026-10-16T05:55:38+0000 2026-10-15T18:39:34+0000

    USA 55 & STARLINK-37323 Collision Probability (Pc) Trend

    USA 55 & STARLINK-37323 Collision Probability (Pc) TrendNot Available

    USA 55 & STARLINK-37323 Miss Distance (Miss Distance) Trend

    USA 55 & STARLINK-37323 Miss Distance (Miss Distance) TrendNot Available

    USA 55Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37323Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    USA 55Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37323Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with USA 55

    No nearby objects data