Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.372086E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-14T21:53:37+0800
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    1 Object 1

    AOE ID 52640
    NORAD ID 52640
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53413
    NORAD ID 53413
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3977 STARLINK-4500
    Time of Closest Approach 2026-10-15T03:03:54+0000
    Collision Probability (Pc) 1.372086E-6
    Conjunction Distance (km) 2.618 km
    Relative Speed (km/s) 11.117 km/s
    Conjunction Risk Parameters R (Radial): 2.425 | I (In-track): 0.676 | C (Cross-track): -0.717
    Collision Risk Index (CRI) 0.38
    X Position (km) 5973.293 5975.385
    Position Y (km) 163.685 164.728
    Position Z (km) 3321.752 3322.929
    Velocity X (km/s) -2.851 2.562
    Velocity Y (km/s) 5.163 5.311
    Velocity Z (km/s) 4.855 -4.854

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3977 STARLINK-4500
    Semimajor Axis (a) 6840.880 km 6843.467 km
    Eccentricity (e) 0.000126 0.000138
    Inclination (i) 53.1625° 53.1610°
    RAAN 343.9783° 210.3071°
    Perigee Argument 74.4116° 80.5327°
    Mean Anomaly (M) 285.7026° 253.8175°
    Apogee 463.605 km 466.273 km
    Perigee 461.881 km 464.387 km
    Orbit Epoch 2026-10-13T14:56:52+0000 2026-10-14T06:00:04+0000

    STARLINK-3977 & STARLINK-4500 Collision Probability (Pc) Trend

    STARLINK-3977 & STARLINK-4500 Collision Probability (Pc) TrendNot Available

    STARLINK-3977 & STARLINK-4500 Miss Distance (Miss Distance) Trend

    STARLINK-3977 & STARLINK-4500 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3977Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4500Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3977Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4500Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3977

    No nearby objects data