Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.245977E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T20:50:05+0800
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    1 Object 1

    AOE ID 56471
    NORAD ID 56471
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    Name STARS-X
    AOE ID 69502
    NORAD ID 69502
    Object Type PAYLOAD
    Country
    JP JP

    Conjunction Constraints

    Parameter STARLINK-5521 STARS-X
    Time of Closest Approach 2026-09-06T03:20:26+0000
    Collision Probability (Pc) 2.245977E-6
    Conjunction Distance (km) 1.99 km
    Relative Speed (km/s) 9.873 km/s
    Conjunction Risk Parameters R (Radial): -1.465 | I (In-track): 1.019 | C (Cross-track): -0.879
    Collision Risk Index (CRI) 0.42
    X Position (km) -2352.766 -2353.512
    Position Y (km) 1342.621 1342.504
    Position Z (km) 6394.735 6392.894
    Velocity X (km/s) -6.201 -4.409
    Velocity Y (km/s) -4.111 5.503
    Velocity Z (km/s) -1.416 -2.763

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5521 STARS-X
    Semimajor Axis (a) 6950.195 km 6947.431 km
    Eccentricity (e) 0.000266 0.001226
    Inclination (i) 70.0008° 97.6822°
    RAAN 32.1483° 310.7200°
    Perigee Argument 269.0038° 8.2121°
    Mean Anomaly (M) 91.0817° 351.9300°
    Apogee 573.907 km 577.815 km
    Perigee 570.209 km 560.773 km
    Orbit Epoch 2026-09-05T02:51:21+0000 2026-09-05T02:49:04+0000

    STARLINK-5521 & STARS-X Collision Probability (Pc) Trend

    STARLINK-5521 & STARS-X Collision Probability (Pc) TrendNot Available

    STARLINK-5521 & STARS-X Miss Distance (Miss Distance) Trend

    STARLINK-5521 & STARS-X Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5521Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARS-XMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5521Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARS-XCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5521

    No nearby objects data