Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.672321E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T05:27:38+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 51111
    NORAD ID 51111
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 52119
    NORAD ID 52119
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3173 STARLINK-3558
    Time of Closest Approach 2026-09-03T05:31:28+0000
    Collision Probability (Pc) 1.672321E-6
    Conjunction Distance (km) 2.374 km
    Relative Speed (km/s) 11.605 km/s
    Conjunction Risk Parameters R (Radial): 2.195 | I (In-track): -0.581 | C (Cross-track): 0.695
    Collision Risk Index (CRI) 0.39
    X Position (km) -6270.762 -6272.882
    Position Y (km) -732.035 -731.371
    Position Z (km) -2637.425 -2638.262
    Velocity X (km/s) -1.643 2.791
    Velocity Y (km/s) -5.184 -4.666
    Velocity Z (km/s) 5.356 -5.355

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3173 STARLINK-3558
    Semimajor Axis (a) 6837.856 km 6840.932 km
    Eccentricity (e) 0.000147 0.000098
    Inclination (i) 53.1609° 53.1605°
    RAAN 209.7628° 355.8848°
    Perigee Argument 128.8042° 109.0115°
    Mean Anomaly (M) 231.3093° 251.0995°
    Apogee 460.726 km 463.469 km
    Perigee 458.712 km 462.121 km
    Orbit Epoch 2026-09-02T04:39:15+0000 2026-09-01T15:06:00+0000

    STARLINK-3173 & STARLINK-3558 Collision Probability (Pc) Trend

    STARLINK-3173 & STARLINK-3558 Collision Probability (Pc) TrendNot Available

    STARLINK-3173 & STARLINK-3558 Miss Distance (Miss Distance) Trend

    STARLINK-3173 & STARLINK-3558 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3173Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-3558Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3173Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3558Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3173

    No nearby objects data