Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.662754E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T06:21:43+0800
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    1 Object 1

    AOE ID 52699
    NORAD ID 52699
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 61954
    NORAD ID 61954
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3987 STARLINK-32574
    Time of Closest Approach 2026-10-22T18:20:39+0000
    Collision Probability (Pc) 7.662754E-7
    Conjunction Distance (km) 2.215 km
    Relative Speed (km/s) 2.278 km/s
    Conjunction Risk Parameters R (Radial): -0.398 | I (In-track): 2.155 | C (Cross-track): 0.325
    Collision Risk Index (CRI) 0.33
    X Position (km) 875.428 873.247
    Position Y (km) 4060.706 4060.927
    Position Z (km) -5442.291 -5441.975
    Velocity X (km/s) -7.56 -7.18
    Velocity Y (km/s) 0.701 2.469
    Velocity Z (km/s) -0.694 0.691

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3987 STARLINK-32574
    Semimajor Axis (a) 6840.857 km 6840.852 km
    Eccentricity (e) 0.000118 0.000148
    Inclination (i) 53.1577° 53.1536°
    RAAN 191.0346° 169.8398°
    Perigee Argument 89.9547° 82.7400°
    Mean Anomaly (M) 270.1591° 277.3771°
    Apogee 463.525 km 463.731 km
    Perigee 461.915 km 461.699 km
    Orbit Epoch 2026-10-20T02:40:13+0000 2026-10-20T01:03:17+0000

    STARLINK-3987 & STARLINK-32574 Collision Probability (Pc) Trend

    STARLINK-3987 & STARLINK-32574 Collision Probability (Pc) TrendNot Available

    STARLINK-3987 & STARLINK-32574 Miss Distance (Miss Distance) Trend

    STARLINK-3987 & STARLINK-32574 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3987Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-32574Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3987Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-32574Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3987

    No nearby objects data