Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.28756E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T16:06:19+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 53415
    NORAD ID 53415
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 56360
    NORAD ID 56360
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4479 STARLINK-5549
    Time of Closest Approach 2026-09-05T22:43:52+0000
    Collision Probability (Pc) 1.28756E-6
    Conjunction Distance (km) 2.971 km
    Relative Speed (km/s) 13.536 km/s
    Conjunction Risk Parameters R (Radial): -2.814 | I (In-track): -0.44 | C (Cross-track): 0.845
    Collision Risk Index (CRI) 0.37
    X Position (km) 1201.538 1201.639
    Position Y (km) 4316.683 4314.274
    Position Z (km) 5169.965 5168.229
    Velocity X (km/s) -7.357 2.945
    Velocity Y (km/s) -0.361 5.063
    Velocity Z (km/s) 2.006 -4.898

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4479 STARLINK-5549
    Semimajor Axis (a) 6848.884 km 6843.711 km
    Eccentricity (e) 0.000123 0.000172
    Inclination (i) 53.1621° 97.2849°
    RAAN 25.2621° 243.0290°
    Perigee Argument 78.8040° 82.9759°
    Mean Anomaly (M) 281.3100° 277.1679°
    Apogee 471.590 km 466.750 km
    Perigee 469.904 km 464.398 km
    Orbit Epoch 2026-09-03T15:36:47+0000 2026-09-02T23:41:22+0000

    STARLINK-4479 & STARLINK-5549 Collision Probability (Pc) Trend

    STARLINK-4479 & STARLINK-5549 Collision Probability (Pc) TrendNot Available

    STARLINK-4479 & STARLINK-5549 Miss Distance (Miss Distance) Trend

    STARLINK-4479 & STARLINK-5549 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4479Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5549Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4479Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5549Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4479

    No nearby objects data