Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    4.023426E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T04:38:50+0800
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    1 Object 1

    AOE ID 57253
    NORAD ID 57253
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 63859
    NORAD ID 63859
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5516 STARLINK-33821
    Time of Closest Approach 2026-10-21T18:22:48+0000
    Collision Probability (Pc) 4.023426E-5
    Conjunction Distance (km) 0.708 km
    Relative Speed (km/s) 5.067 km/s
    Conjunction Risk Parameters R (Radial): -0.464 | I (In-track): 0.504 | C (Cross-track): 0.181
    Collision Risk Index (CRI) 0.67
    X Position (km) 2828.337 2828.597
    Position Y (km) -4501.988 -4501.397
    Position Z (km) 4328.39 4328.099
    Velocity X (km/s) 6.944 5.24
    Velocity Y (km/s) 2.471 5.184
    Velocity Z (km/s) -1.962 1.962

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5516 STARLINK-33821
    Semimajor Axis (a) 6861.211 km 6861.146 km
    Eccentricity (e) 0.000124 0.000132
    Inclination (i) 43.0026° 43.0018°
    RAAN 197.9054° 255.0054°
    Perigee Argument 279.5963° 271.6588°
    Mean Anomaly (M) 80.4748° 88.4112°
    Apogee 483.929 km 483.917 km
    Perigee 482.219 km 482.101 km
    Orbit Epoch 2026-10-19T03:07:14+0000 2026-10-19T08:01:26+0000

    STARLINK-5516 & STARLINK-33821 Collision Probability (Pc) Trend

    STARLINK-5516 & STARLINK-33821 Collision Probability (Pc) TrendNot Available

    STARLINK-5516 & STARLINK-33821 Miss Distance (Miss Distance) Trend

    STARLINK-5516 & STARLINK-33821 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5516Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33821Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5516Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33821Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5516

    No nearby objects data