Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.167858E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T20:50:07+0800
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    1 Object 1

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

    2 Object 2

    AOE ID 61758
    NORAD ID 61758
    Object Type UNKNOWN
    Country
    TBD TBD

    Conjunction Constraints

    Parameter STARLINK-5521 OBJECT Z
    Time of Closest Approach 2026-09-07T20:51:55+0000
    Collision Probability (Pc) 1.167858E-6
    Conjunction Distance (km) 2.588 km
    Relative Speed (km/s) 8.153 km/s
    Conjunction Risk Parameters R (Radial): -2.441 | I (In-track): 0.726 | C (Cross-track): 0.454
    Collision Risk Index (CRI) 0.36
    X Position (km) 1041.61 1040.77
    Position Y (km) 2980.798 2979.142
    Position Z (km) 6185.967 6184.165
    Velocity X (km/s) -6.847 -0.132
    Velocity Y (km/s) -2.314 -6.821
    Velocity Z (km/s) 2.264 3.296

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5521 OBJECT Z
    Semimajor Axis (a) 6950.195 km 6950.331 km
    Eccentricity (e) 0.000266 0.000631
    Inclination (i) 70.0008° 97.3201°
    RAAN 32.1483° 82.8787°
    Perigee Argument 269.0038° 144.0597°
    Mean Anomaly (M) 91.0817° 216.1052°
    Apogee 573.907 km 576.580 km
    Perigee 570.209 km 567.808 km
    Orbit Epoch 2026-09-05T02:51:21+0000 2026-09-05T06:04:14+0000

    STARLINK-5521 & OBJECT Z Collision Probability (Pc) Trend

    STARLINK-5521 & OBJECT Z Collision Probability (Pc) TrendNot Available

    STARLINK-5521 & OBJECT Z Miss Distance (Miss Distance) Trend

    STARLINK-5521 & OBJECT Z Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5521Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    OBJECT ZMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5521Collision Probability Trend

    Object 1 Probability TrendNot Available

    OBJECT ZCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5521

    No nearby objects data