Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.058948E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T21:03:00+0800
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    1 Object 1

    AOE ID 52622
    NORAD ID 52622
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 54799
    NORAD ID 54799
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4008 STARLINK-5421
    Time of Closest Approach 2026-10-20T20:16:48+0000
    Collision Probability (Pc) 1.058948E-6
    Conjunction Distance (km) 2.95 km
    Relative Speed (km/s) 9.446 km/s
    Conjunction Risk Parameters R (Radial): -2.788 | I (In-track): -0.758 | C (Cross-track): -0.587
    Collision Risk Index (CRI) 0.35
    X Position (km) 2206.689 2208.456
    Position Y (km) -4737.061 -4738.582
    Position Z (km) -4417.89 -4419.697
    Velocity X (km/s) 6.717 4.141
    Velocity Y (km/s) -0.233 5.292
    Velocity Z (km/s) 3.608 -3.608

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4008 STARLINK-5421
    Semimajor Axis (a) 6837.819 km 6840.830 km
    Eccentricity (e) 0.000136 0.000154
    Inclination (i) 53.1588° 53.1579°
    RAAN 337.6191° 81.0291°
    Perigee Argument 101.4800° 87.2936°
    Mean Anomaly (M) 258.6356° 272.8242°
    Apogee 460.612 km 463.744 km
    Perigee 458.752 km 461.642 km
    Orbit Epoch 2026-10-20T03:19:46+0000 2026-10-19T16:41:28+0000

    STARLINK-4008 & STARLINK-5421 Collision Probability (Pc) Trend

    STARLINK-4008 & STARLINK-5421 Collision Probability (Pc) TrendNot Available

    STARLINK-4008 & STARLINK-5421 Miss Distance (Miss Distance) Trend

    STARLINK-4008 & STARLINK-5421 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4008Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5421Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4008Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5421Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4008

    No nearby objects data