Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.875578E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-13T00:53:44+0800
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    1 Object 1

    Name USA 18
    AOE ID 16631
    NORAD ID 16631
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 65448
    NORAD ID 65448
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter USA 18 STARLINK-35030
    Time of Closest Approach 2026-10-12T19:58:03+0000
    Collision Probability (Pc) 1.875578E-6
    Conjunction Distance (km) 2.173 km
    Relative Speed (km/s) 10.332 km/s
    Conjunction Risk Parameters R (Radial): -0.213 | I (In-track): 1.589 | C (Cross-track): 1.467
    Collision Risk Index (CRI) 0.4
    X Position (km) -1736.608 -1736.454
    Position Y (km) 2814.316 2812.285
    Position Z (km) 5983.805 5984.561
    Velocity X (km/s) -4.801 5.094
    Velocity Y (km/s) -6.131 -4.438
    Velocity Z (km/s) 1.115 3.555

    Orbital Parameters 国际轨道数据源

    Parameter USA 18 STARLINK-35030
    Semimajor Axis (a) 7292.961 km 6843.637 km
    Eccentricity (e) 0.074156 0.000180
    Inclination (i) 63.2960° 97.2837°
    RAAN 57.5269° 134.5586°
    Perigee Argument 114.8100° 90.7063°
    Mean Anomaly (M) 253.1920° 269.4386°
    Apogee 1455.642 km 466.733 km
    Perigee 374.006 km 464.267 km
    Orbit Epoch 2026-10-12T07:33:20+0000 2026-10-12T07:10:11+0000

    USA 18 & STARLINK-35030 Collision Probability (Pc) Trend

    USA 18 & STARLINK-35030 Collision Probability (Pc) TrendNot Available

    USA 18 & STARLINK-35030 Miss Distance (Miss Distance) Trend

    USA 18 & STARLINK-35030 Miss Distance (Miss Distance) TrendNot Available

    USA 18Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35030Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    USA 18Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35030Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with USA 18

    No nearby objects data