Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.611465E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T09:47:21+0800
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    1 Object 1

    AOE ID 59496
    NORAD ID 59496
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 63857
    NORAD ID 63857
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-31728 STARLINK-33999
    Time of Closest Approach 2026-09-13T07:00:47+0000
    Collision Probability (Pc) 1.611465E-6
    Conjunction Distance (km) 2.159 km
    Relative Speed (km/s) 7.857 km/s
    Conjunction Risk Parameters R (Radial): 1.536 | I (In-track): 1.303 | C (Cross-track): -0.776
    Collision Risk Index (CRI) 0.39
    X Position (km) -4432.688 -4430.707
    Position Y (km) 3819.386 3819.681
    Position Z (km) 3576.283 3575.477
    Velocity X (km/s) -5.822 -2.714
    Velocity Y (km/s) -3.612 -6.293
    Velocity Z (km/s) -3.349 3.35

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31728 STARLINK-33999
    Semimajor Axis (a) 6861.188 km 6861.160 km
    Eccentricity (e) 0.000202 0.000077
    Inclination (i) 43.0047° 43.0033°
    RAAN 22.1583° 114.9293°
    Perigee Argument 274.3841° 281.7831°
    Mean Anomaly (M) 85.6780° 78.2935°
    Apogee 484.437 km 483.550 km
    Perigee 481.665 km 482.496 km
    Orbit Epoch 2026-09-09T09:51:34+0000 2026-09-10T08:10:53+0000

    STARLINK-31728 & STARLINK-33999 Collision Probability (Pc) Trend

    STARLINK-31728 & STARLINK-33999 Collision Probability (Pc) TrendNot Available

    STARLINK-31728 & STARLINK-33999 Miss Distance (Miss Distance) Trend

    STARLINK-31728 & STARLINK-33999 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31728Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33999Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-31728Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33999Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31728

    No nearby objects data