Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.499742E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T07:56:24+0800
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    1 Object 1

    AOE ID 52621
    NORAD ID 52621
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 69953
    NORAD ID 69953
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3984 STARLINK-37900
    Time of Closest Approach 2026-10-21T15:58:06+0000
    Collision Probability (Pc) 1.499742E-6
    Conjunction Distance (km) 2.477 km
    Relative Speed (km/s) 11.029 km/s
    Conjunction Risk Parameters R (Radial): -2.405 | I (In-track): 0.416 | C (Cross-track): 0.419
    Collision Risk Index (CRI) 0.39
    X Position (km) 5642.584 5644.387
    Position Y (km) -1789.44 -1790.63
    Position Z (km) 3414.547 3415.758
    Velocity X (km/s) -1.035 4.232
    Velocity Y (km/s) 5.876 4.205
    Velocity Z (km/s) 4.773 -4.772

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3984 STARLINK-37900
    Semimajor Axis (a) 6837.874 km 6840.828 km
    Eccentricity (e) 0.000157 0.000129
    Inclination (i) 53.1574° 53.1573°
    RAAN 326.8716° 199.7199°
    Perigee Argument 95.0595° 98.3930°
    Mean Anomaly (M) 265.0587° 261.7218°
    Apogee 460.812 km 463.571 km
    Perigee 458.662 km 461.811 km
    Orbit Epoch 2026-10-19T12:14:50+0000 2026-10-19T03:57:16+0000

    STARLINK-3984 & STARLINK-37900 Collision Probability (Pc) Trend

    STARLINK-3984 & STARLINK-37900 Collision Probability (Pc) TrendNot Available

    STARLINK-3984 & STARLINK-37900 Miss Distance (Miss Distance) Trend

    STARLINK-3984 & STARLINK-37900 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3984Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37900Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3984Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37900Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3984

    No nearby objects data