Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.114481E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-08-30T00:32:12+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 53475
    NORAD ID 53475
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 54209
    NORAD ID 54209
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4389 STARLINK-5259
    Time of Closest Approach 2026-08-29T18:43:14+0000
    Collision Probability (Pc) 2.114481E-6
    Conjunction Distance (km) 2.096 km
    Relative Speed (km/s) 10.981 km/s
    Conjunction Risk Parameters R (Radial): 2.056 | I (In-track): -0.287 | C (Cross-track): 0.288
    Collision Risk Index (CRI) 0.42
    X Position (km) 4164.477 4165.997
    Position Y (km) -97.969 -98.224
    Position Z (km) 5410.292 5411.712
    Velocity X (km/s) -5.955 -0.929
    Velocity Y (km/s) -1.501 7.536
    Velocity Z (km/s) 4.545 0.851

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4389 STARLINK-5259
    Semimajor Axis (a) 6833.217 km 6837.882 km
    Eccentricity (e) 0.000052 0.000098
    Inclination (i) 97.5263° 53.1602°
    RAAN 7.9971° 287.7014°
    Perigee Argument 107.6432° 55.5857°
    Mean Anomaly (M) 252.4869° 304.5238°
    Apogee 455.437 km 460.416 km
    Perigee 454.723 km 459.074 km
    Orbit Epoch 2026-08-29T05:59:25+0000 2026-08-28T12:40:58+0000

    STARLINK-4389 & STARLINK-5259 Collision Probability (Pc) Trend

    STARLINK-4389 & STARLINK-5259 Collision Probability (Pc) TrendNot Available

    STARLINK-4389 & STARLINK-5259 Miss Distance (Miss Distance) Trend

    STARLINK-4389 & STARLINK-5259 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4389Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5259Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4389Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5259Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4389

    No nearby objects data