Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.023218E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T16:08:29+0800
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    1 Object 1

    AOE ID 47978
    NORAD ID 47978
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 68845
    NORAD ID 68845
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-1647 STARLINK-37539
    Time of Closest Approach 2026-09-06T11:55:54+0000
    Collision Probability (Pc) 1.023218E-6
    Conjunction Distance (km) 2.851 km
    Relative Speed (km/s) 8.246 km/s
    Conjunction Risk Parameters R (Radial): -2.656 | I (In-track): -0.864 | C (Cross-track): 0.563
    Collision Risk Index (CRI) 0.35
    X Position (km) 1217.34 1217.409
    Position Y (km) 4838.779 4837.441
    Position Z (km) -4699.04 -4696.524
    Velocity X (km/s) -6.812 0.032
    Velocity Y (km/s) -1.339 -5.311
    Velocity Z (km/s) -3.146 -5.467

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-1647 STARLINK-37539
    Semimajor Axis (a) 6848.875 km 6843.700 km
    Eccentricity (e) 0.000109 0.000178
    Inclination (i) 53.1587° 97.2844°
    RAAN 218.1513° 260.3073°
    Perigee Argument 94.7844° 84.3857°
    Mean Anomaly (M) 265.3282° 275.7588°
    Apogee 471.486 km 466.779 km
    Perigee 469.990 km 464.347 km
    Orbit Epoch 2026-09-04T22:52:30+0000 2026-09-03T23:26:53+0000

    STARLINK-1647 & STARLINK-37539 Collision Probability (Pc) Trend

    STARLINK-1647 & STARLINK-37539 Collision Probability (Pc) TrendNot Available

    STARLINK-1647 & STARLINK-37539 Miss Distance (Miss Distance) Trend

    STARLINK-1647 & STARLINK-37539 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-1647Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37539Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-1647Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37539Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-1647

    No nearby objects data