Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.337409E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T21:03:00+0800
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    1 Object 1

    AOE ID 47747
    NORAD ID 47747
    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-2161 STARLINK-5421
    Time of Closest Approach 2026-10-21T23:17:54+0000
    Collision Probability (Pc) 1.337409E-6
    Conjunction Distance (km) 2.724 km
    Relative Speed (km/s) 11.812 km/s
    Conjunction Risk Parameters R (Radial): 2.226 | I (In-track): 1.002 | C (Cross-track): -1.207
    Collision Risk Index (CRI) 0.38
    X Position (km) 3663.21 3663.311
    Position Y (km) 5343.789 5341.162
    Position Z (km) -2212.055 -2211.345
    Velocity X (km/s) -5.063 -2.91
    Velocity Y (km/s) 1.163 4.304
    Velocity Z (km/s) -5.59 5.591

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-2161 STARLINK-5421
    Semimajor Axis (a) 6845.172 km 6840.830 km
    Eccentricity (e) 0.000131 0.000154
    Inclination (i) 53.1577° 53.1579°
    RAAN 228.5162° 81.0291°
    Perigee Argument 104.7781° 87.2936°
    Mean Anomaly (M) 255.3366° 272.8242°
    Apogee 467.933 km 463.744 km
    Perigee 466.137 km 461.642 km
    Orbit Epoch 2026-10-20T07:18:16+0000 2026-10-19T16:41:28+0000

    STARLINK-2161 & STARLINK-5421 Collision Probability (Pc) Trend

    STARLINK-2161 & STARLINK-5421 Collision Probability (Pc) TrendNot Available

    STARLINK-2161 & STARLINK-5421 Miss Distance (Miss Distance) Trend

    STARLINK-2161 & STARLINK-5421 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-2161Miss 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-2161Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5421Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-2161

    No nearby objects data