Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.709207E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T05:53:28+0800
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    1 Object 1

    AOE ID 52703
    NORAD ID 52703
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66940
    NORAD ID 66940
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4020 STARLINK-36121
    Time of Closest Approach 2026-10-21T10:36:13+0000
    Collision Probability (Pc) 1.709207E-6
    Conjunction Distance (km) 2.37 km
    Relative Speed (km/s) 11.963 km/s
    Conjunction Risk Parameters R (Radial): 2.284 | I (In-track): 0.397 | C (Cross-track): -0.495
    Collision Risk Index (CRI) 0.4
    X Position (km) -6418.069 -6420.068
    Position Y (km) -1489.647 -1490.762
    Position Z (km) 1824.423 1825.035
    Velocity X (km/s) 2.637 -0.488
    Velocity Y (km/s) -4.265 -4.99
    Velocity Z (km/s) 5.763 -5.762

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4020 STARLINK-36121
    Semimajor Axis (a) 6837.932 km 6840.854 km
    Eccentricity (e) 0.000066 0.000118
    Inclination (i) 53.1583° 53.1572°
    RAAN 187.1982° 30.0648°
    Perigee Argument 102.5537° 104.5132°
    Mean Anomaly (M) 257.5540° 255.6001°
    Apogee 460.244 km 463.525 km
    Perigee 459.346 km 461.909 km
    Orbit Epoch 2026-10-20T03:16:27+0000 2026-10-20T08:53:46+0000

    STARLINK-4020 & STARLINK-36121 Collision Probability (Pc) Trend

    STARLINK-4020 & STARLINK-36121 Collision Probability (Pc) TrendNot Available

    STARLINK-4020 & STARLINK-36121 Miss Distance (Miss Distance) Trend

    STARLINK-4020 & STARLINK-36121 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4020Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36121Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4020Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36121Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4020

    No nearby objects data