Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    4.038942E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T08:30:15+0800
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    1 Object 1

    AOE ID 26545
    NORAD ID 26545
    Object Type PAYLOAD
    Country
    SA SA
    VS

    2 Object 2

    AOE ID 55310
    NORAD ID 55310
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SAUDISAT 1A STARLINK-5309
    Time of Closest Approach 2026-09-06T21:22:19+0000
    Collision Probability (Pc) 4.038942E-6
    Conjunction Distance (km) 1.709 km
    Relative Speed (km/s) 12.811 km/s
    Conjunction Risk Parameters R (Radial): -0.358 | I (In-track): 0.888 | C (Cross-track): -1.415
    Collision Risk Index (CRI) 0.47
    X Position (km) -1933.204 -1934.813
    Position Y (km) -4659.867 -4659.395
    Position Z (km) -4786.39 -4786.72
    Velocity X (km/s) 5.763 1.534
    Velocity Y (km/s) 2.181 -5.61
    Velocity Z (km/s) -4.407 4.841

    Orbital Parameters 国际轨道数据源

    Parameter SAUDISAT 1A STARLINK-5309
    Semimajor Axis (a) 6965.659 km 6950.182 km
    Eccentricity (e) 0.004882 0.000366
    Inclination (i) 64.5508° 69.9977°
    RAAN 47.0580° 273.7037°
    Perigee Argument 290.2852° 268.0086°
    Mean Anomaly (M) 69.3016° 92.0653°
    Apogee 621.529 km 574.592 km
    Perigee 553.515 km 569.498 km
    Orbit Epoch 2026-09-04T20:07:36+0000 2026-09-04T11:54:05+0000

    SAUDISAT 1A & STARLINK-5309 Collision Probability (Pc) Trend

    SAUDISAT 1A & STARLINK-5309 Collision Probability (Pc) TrendNot Available

    SAUDISAT 1A & STARLINK-5309 Miss Distance (Miss Distance) Trend

    SAUDISAT 1A & STARLINK-5309 Miss Distance (Miss Distance) TrendNot Available

    SAUDISAT 1AMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5309Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SAUDISAT 1ACollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5309Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SAUDISAT 1A

    No nearby objects data