Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.121916E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T09:39:29+0800
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    1 Object 1

    AOE ID 51753
    NORAD ID 51753
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53547
    NORAD ID 53547
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3507 STARLINK-4474
    Time of Closest Approach 2026-09-04T00:26:58+0000
    Collision Probability (Pc) 1.121916E-6
    Conjunction Distance (km) 2.92 km
    Relative Speed (km/s) 10.235 km/s
    Conjunction Risk Parameters R (Radial): -2.574 | I (In-track): -1.019 | C (Cross-track): 0.924
    Collision Risk Index (CRI) 0.36
    X Position (km) -5525.978 -5523.992
    Position Y (km) -366.016 -364.506
    Position Z (km) -4028.367 -4026.851
    Velocity X (km/s) -2.628 3.374
    Velocity Y (km/s) -5.841 -5.445
    Velocity Z (km/s) 4.14 -4.141

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3507 STARLINK-4474
    Semimajor Axis (a) 6843.399 km 6840.866 km
    Eccentricity (e) 0.000132 0.000119
    Inclination (i) 53.1602° 53.1592°
    RAAN 225.0143° 342.1882°
    Perigee Argument 82.0549° 83.3711°
    Mean Anomaly (M) 278.0603° 276.7426°
    Apogee 466.164 km 463.541 km
    Perigee 464.360 km 461.917 km
    Orbit Epoch 2026-09-02T06:25:26+0000 2026-09-01T13:37:21+0000

    STARLINK-3507 & STARLINK-4474 Collision Probability (Pc) Trend

    STARLINK-3507 & STARLINK-4474 Collision Probability (Pc) TrendNot Available

    STARLINK-3507 & STARLINK-4474 Miss Distance (Miss Distance) Trend

    STARLINK-3507 & STARLINK-4474 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3507Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4474Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3507Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4474Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3507

    No nearby objects data