Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.431646E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T13:37:56+0800
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    1 Object 1

    AOE ID 51877
    NORAD ID 51877
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 64178
    NORAD ID 64178
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3556 STARLINK-34227
    Time of Closest Approach 2026-10-21T19:36:15+0000
    Collision Probability (Pc) 1.431646E-6
    Conjunction Distance (km) 2.269 km
    Relative Speed (km/s) 7.69 km/s
    Conjunction Risk Parameters R (Radial): -1.521 | I (In-track): -1.45 | C (Cross-track): 0.853
    Collision Risk Index (CRI) 0.38
    X Position (km) 4683.419 4682.091
    Position Y (km) -821.525 -823.001
    Position Z (km) -4925.615 -4924.518
    Velocity X (km/s) 3.862 -1.585
    Velocity Y (km/s) 6.008 6.966
    Velocity Z (km/s) 2.672 -2.671

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3556 STARLINK-34227
    Semimajor Axis (a) 6840.871 km 6840.837 km
    Eccentricity (e) 0.000122 0.000170
    Inclination (i) 53.1611° 53.1577°
    RAAN 52.5202° 129.6352°
    Perigee Argument 85.1496° 306.4092°
    Mean Anomaly (M) 274.9645° 53.6753°
    Apogee 463.567 km 463.865 km
    Perigee 461.901 km 461.535 km
    Orbit Epoch 2026-10-19T08:28:44+0000 2026-10-19T13:23:47+0000

    STARLINK-3556 & STARLINK-34227 Collision Probability (Pc) Trend

    STARLINK-3556 & STARLINK-34227 Collision Probability (Pc) TrendNot Available

    STARLINK-3556 & STARLINK-34227 Miss Distance (Miss Distance) Trend

    STARLINK-3556 & STARLINK-34227 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3556Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34227Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3556Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34227Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3556

    No nearby objects data