Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.847843E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T15:57:05+0800
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    1 Object 1

    AOE ID 49450
    NORAD ID 49450
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 52640
    NORAD ID 52640
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3127 STARLINK-3977
    Time of Closest Approach 2026-09-05T16:12:39+0000
    Collision Probability (Pc) 7.847843E-7
    Conjunction Distance (km) 2.637 km
    Relative Speed (km/s) 4.2 km/s
    Conjunction Risk Parameters R (Radial): 2.491 | I (In-track): 0.833 | C (Cross-track): -0.236
    Collision Risk Index (CRI) 0.33
    X Position (km) -2656.85 -2656.559
    Position Y (km) -3333.328 -3331.574
    Position Z (km) 5339.996 5338.048
    Velocity X (km/s) 4.719 6.768
    Velocity Y (km/s) -5.863 -3.296
    Velocity Z (km/s) -1.309 1.308

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3127 STARLINK-3977
    Semimajor Axis (a) 6839.741 km 6837.872 km
    Eccentricity (e) 0.000125 0.000115
    Inclination (i) 53.1617° 53.1590°
    RAAN 129.6634° 173.4624°
    Perigee Argument 95.1477° 85.2366°
    Mean Anomaly (M) 264.9668° 274.8768°
    Apogee 462.457 km 460.520 km
    Perigee 460.751 km 458.950 km
    Orbit Epoch 2026-09-03T21:33:59+0000 2026-09-03T02:56:51+0000

    STARLINK-3127 & STARLINK-3977 Collision Probability (Pc) Trend

    STARLINK-3127 & STARLINK-3977 Collision Probability (Pc) TrendNot Available

    STARLINK-3127 & STARLINK-3977 Miss Distance (Miss Distance) Trend

    STARLINK-3127 & STARLINK-3977 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3127Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-3977Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3127Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3977Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3127

    No nearby objects data