Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    7.153432E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T15:57:18+0800
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    1 Object 1

    AOE ID 52641
    NORAD ID 52641
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53207
    NORAD ID 53207
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3991 STARLINK-4413
    Time of Closest Approach 2026-09-06T03:17:13+0000
    Collision Probability (Pc) 7.153432E-6
    Conjunction Distance (km) 1.459 km
    Relative Speed (km/s) 14.207 km/s
    Conjunction Risk Parameters R (Radial): -1.453 | I (In-track): -0.041 | C (Cross-track): 0.113
    Collision Risk Index (CRI) 0.52
    X Position (km) -2434.163 -2433.577
    Position Y (km) 4603.755 4602.863
    Position Z (km) -4456.226 -4455.233
    Velocity X (km/s) -6.74 3.407
    Velocity Y (km/s) -0.123 -3.722
    Velocity Z (km/s) 3.558 -5.712

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3991 STARLINK-4413
    Semimajor Axis (a) 6848.858 km 6852.728 km
    Eccentricity (e) 0.000127 0.000142
    Inclination (i) 53.1596° 97.2864°
    RAAN 172.0099° 301.9685°
    Perigee Argument 88.9374° 79.0479°
    Mean Anomaly (M) 271.1772° 146.6519°
    Apogee 471.589 km 475.563 km
    Perigee 469.853 km 473.619 km
    Orbit Epoch 2026-09-03T01:55:18+0000 2026-09-03T22:00:02+0000

    STARLINK-3991 & STARLINK-4413 Collision Probability (Pc) Trend

    STARLINK-3991 & STARLINK-4413 Collision Probability (Pc) TrendNot Available

    STARLINK-3991 & STARLINK-4413 Miss Distance (Miss Distance) Trend

    STARLINK-3991 & STARLINK-4413 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3991Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4413Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3991Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4413Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3991

    No nearby objects data