Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.5141E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T12:28:24+0800
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    1 Object 1

    AOE ID 35686
    NORAD ID 35686
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 54091
    NORAD ID 54091
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter APRIZESAT 3 STARLINK-5221
    Time of Closest Approach 2026-09-11T04:35:37+0000
    Collision Probability (Pc) 1.5141E-6
    Conjunction Distance (km) 2.728 km
    Relative Speed (km/s) 14.681 km/s
    Conjunction Risk Parameters R (Radial): 0.248 | I (In-track): 0.721 | C (Cross-track): -2.618
    Collision Risk Index (CRI) 0.39
    X Position (km) -3847.819 -3849.507
    Position Y (km) -5346.818 -5344.904
    Position Z (km) 2106.041 2107.002
    Velocity X (km/s) -2.281 4.935
    Velocity Y (km/s) -1.214 -1.328
    Velocity Z (km/s) -7.165 5.62

    Orbital Parameters 国际轨道数据源

    Parameter APRIZESAT 3 STARLINK-5221
    Semimajor Axis (a) 6956.039 km 6917.899 km
    Eccentricity (e) 0.006193 0.000123
    Inclination (i) 98.2177° 53.1600°
    RAAN 50.8078° 222.7634°
    Perigee Argument 144.8170° 69.0838°
    Mean Anomaly (M) 215.7164° 291.0286°
    Apogee 620.983 km 540.616 km
    Perigee 534.821 km 538.908 km
    Orbit Epoch 2026-09-10T10:13:21+0000 2026-09-10T15:46:37+0000

    APRIZESAT 3 & STARLINK-5221 Collision Probability (Pc) Trend

    APRIZESAT 3 & STARLINK-5221 Collision Probability (Pc) TrendNot Available

    APRIZESAT 3 & STARLINK-5221 Miss Distance (Miss Distance) Trend

    APRIZESAT 3 & STARLINK-5221 Miss Distance (Miss Distance) TrendNot Available

    APRIZESAT 3Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5221Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    APRIZESAT 3Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5221Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with APRIZESAT 3

    No nearby objects data