Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.520667E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-24T18:49:30+0800
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    1 Object 1

    AOE ID 22236
    NORAD ID 22236
    Object Type PAYLOAD
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 55781
    NORAD ID 55781
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2221 STARLINK-5820
    Time of Closest Approach 2026-09-24T11:02:09+0000
    Collision Probability (Pc) 1.520667E-6
    Conjunction Distance (km) 1.58 km
    Relative Speed (km/s) 1.787 km/s
    Conjunction Risk Parameters R (Radial): 0.549 | I (In-track): 1.471 | C (Cross-track): 0.179
    Collision Risk Index (CRI) 0.39
    X Position (km) 188.658 189.04
    Position Y (km) -6446.079 -6446.041
    Position Z (km) -2600.932 -2602.463
    Velocity X (km/s) 0.983 2.713
    Velocity Y (km/s) 2.836 2.712
    Velocity Z (km/s) -6.954 -6.527

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2221 STARLINK-5820
    Semimajor Axis (a) 6955.053 km 6950.205 km
    Eccentricity (e) 0.001283 0.000264
    Inclination (i) 82.5001° 69.9985°
    RAAN 89.1795° 84.4998°
    Perigee Argument 243.6642° 266.5975°
    Mean Anomaly (M) 116.3263° 93.4883°
    Apogee 585.843 km 573.900 km
    Perigee 567.989 km 570.236 km
    Orbit Epoch 2026-09-23T21:17:57+0000 2026-09-23T22:54:55+0000

    COSMOS 2221 & STARLINK-5820 Collision Probability (Pc) Trend

    COSMOS 2221 & STARLINK-5820 Collision Probability (Pc) TrendNot Available

    COSMOS 2221 & STARLINK-5820 Miss Distance (Miss Distance) Trend

    COSMOS 2221 & STARLINK-5820 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2221Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5820Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2221Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5820Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2221

    No nearby objects data