Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.392146E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T16:17:36+0800
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    1 Object 1

    AOE ID 53861
    NORAD ID 53861
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 69556
    NORAD ID 69556
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4781 STARLINK-37927
    Time of Closest Approach 2026-09-05T23:34:40+0000
    Collision Probability (Pc) 1.392146E-6
    Conjunction Distance (km) 2.61 km
    Relative Speed (km/s) 11.309 km/s
    Conjunction Risk Parameters R (Radial): -2.591 | I (In-track): 0.212 | C (Cross-track): 0.226
    Collision Risk Index (CRI) 0.38
    X Position (km) -205.565 -205.294
    Position Y (km) -4125.613 -4123.862
    Position Z (km) 5452.871 5450.955
    Velocity X (km/s) 7.61 -1.305
    Velocity Y (km/s) 0.318 6.028
    Velocity Z (km/s) 0.526 4.5

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4781 STARLINK-37927
    Semimajor Axis (a) 6848.849 km 6843.718 km
    Eccentricity (e) 0.000129 0.000089
    Inclination (i) 53.1577° 97.2837°
    RAAN 197.8854° 274.9325°
    Perigee Argument 81.6415° 100.1387°
    Mean Anomaly (M) 278.4733° 259.9956°
    Apogee 471.595 km 466.191 km
    Perigee 469.829 km 464.971 km
    Orbit Epoch 2026-09-03T07:00:10+0000 2026-09-04T00:21:44+0000

    STARLINK-4781 & STARLINK-37927 Collision Probability (Pc) Trend

    STARLINK-4781 & STARLINK-37927 Collision Probability (Pc) TrendNot Available

    STARLINK-4781 & STARLINK-37927 Miss Distance (Miss Distance) Trend

    STARLINK-4781 & STARLINK-37927 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4781Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37927Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4781Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37927Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4781

    No nearby objects data