Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.186373E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T05:31:23+0800
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    1 Object 1

    AOE ID 52609
    NORAD ID 52609
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53570
    NORAD ID 53570
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3997 STARLINK-4550
    Time of Closest Approach 2026-09-03T19:44:20+0000
    Collision Probability (Pc) 3.186373E-6
    Conjunction Distance (km) 1.792 km
    Relative Speed (km/s) 10.999 km/s
    Conjunction Risk Parameters R (Radial): 1.707 | I (In-track): -0.375 | C (Cross-track): 0.395
    Collision Risk Index (CRI) 0.45
    X Position (km) -5783.339 -5784.665
    Position Y (km) 1274.721 1275.571
    Position Z (km) -3434.261 -3435.114
    Velocity X (km/s) -3.83 1.552
    Velocity Y (km/s) -4.57 -5.756
    Velocity Z (km/s) 4.759 -4.759

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3997 STARLINK-4550
    Semimajor Axis (a) 6840.821 km 6843.448 km
    Eccentricity (e) 0.000174 0.000117
    Inclination (i) 53.1613° 53.1597°
    RAAN 200.9201° 327.7620°
    Perigee Argument 130.5122° 101.6442°
    Mean Anomaly (M) 229.6033° 258.4692°
    Apogee 463.874 km 466.111 km
    Perigee 461.494 km 464.511 km
    Orbit Epoch 2026-09-02T04:49:36+0000 2026-09-02T13:04:14+0000

    STARLINK-3997 & STARLINK-4550 Collision Probability (Pc) Trend

    STARLINK-3997 & STARLINK-4550 Collision Probability (Pc) TrendNot Available

    STARLINK-3997 & STARLINK-4550 Miss Distance (Miss Distance) Trend

    STARLINK-3997 & STARLINK-4550 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3997Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4550Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3997Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4550Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3997

    No nearby objects data