Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.371039E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-15T10:20:39+0800
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    1 Object 1

    AOE ID 55634
    NORAD ID 55634
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    Name BRO-21
    AOE ID 69007
    NORAD ID 69007
    Object Type PAYLOAD
    Country
    FR FR

    Conjunction Constraints

    Parameter STARLINK-5500 BRO-21
    Time of Closest Approach 2026-10-16T05:10:10+0000
    Collision Probability (Pc) 1.371039E-6
    Conjunction Distance (km) 2.973 km
    Relative Speed (km/s) 15.122 km/s
    Conjunction Risk Parameters R (Radial): 1.586 | I (In-track): -0.284 | C (Cross-track): 2.499
    Collision Risk Index (CRI) 0.38
    X Position (km) 6790.374 6792.195
    Position Y (km) 468.415 466.092
    Position Z (km) -1042.785 -1042.435
    Velocity X (km/s) 0.894 -1.064
    Velocity Y (km/s) 2.699 -1.064
    Velocity Z (km/s) 7.059 -7.455

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5500 BRO-21
    Semimajor Axis (a) 6884.109 km 6877.853 km
    Eccentricity (e) 0.000406 0.000808
    Inclination (i) 70.0017° 97.3887°
    RAAN 12.2669° 183.0281°
    Perigee Argument 277.7434° 11.4929°
    Mean Anomaly (M) 120.8478° 348.6490°
    Apogee 508.769 km 505.277 km
    Perigee 503.175 km 494.155 km
    Orbit Epoch 2026-10-14T06:00:04+0000 2026-10-14T03:25:49+0000

    STARLINK-5500 & BRO-21 Collision Probability (Pc) Trend

    STARLINK-5500 & BRO-21 Collision Probability (Pc) TrendNot Available

    STARLINK-5500 & BRO-21 Miss Distance (Miss Distance) Trend

    STARLINK-5500 & BRO-21 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5500Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    BRO-21Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5500Collision Probability Trend

    Object 1 Probability TrendNot Available

    BRO-21Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5500

    No nearby objects data