Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    6.356638E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T03:59:17+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 53285
    NORAD ID 53285
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 65935
    NORAD ID 65935
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4173 STARLINK-35155
    Time of Closest Approach 2026-09-17T02:09:57+0000
    Collision Probability (Pc) 6.356638E-7
    Conjunction Distance (km) 2.984 km
    Relative Speed (km/s) 3.762 km/s
    Conjunction Risk Parameters R (Radial): -2.303 | I (In-track): 1.84 | C (Cross-track): 0.46
    Collision Risk Index (CRI) 0.31
    X Position (km) -837.91 -836.333
    Position Y (km) 4143.027 4144.793
    Position Z (km) 5365.271 5367.085
    Velocity X (km/s) -6.965 -7.551
    Velocity Y (km/s) -2.917 -0.016
    Velocity Z (km/s) 1.161 -1.161

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4173 STARLINK-35155
    Semimajor Axis (a) 6837.879 km 6840.748 km
    Eccentricity (e) 0.000098 0.000132
    Inclination (i) 53.1609° 53.1597°
    RAAN 38.5462° 1.8250°
    Perigee Argument 97.2332° 75.3410°
    Mean Anomaly (M) 262.8782° 284.7738°
    Apogee 460.413 km 463.512 km
    Perigee 459.071 km 461.710 km
    Orbit Epoch 2026-09-15T02:57:23+0000 2026-09-15T07:31:22+0000

    STARLINK-4173 & STARLINK-35155 Collision Probability (Pc) Trend

    STARLINK-4173 & STARLINK-35155 Collision Probability (Pc) TrendNot Available

    STARLINK-4173 & STARLINK-35155 Miss Distance (Miss Distance) Trend

    STARLINK-4173 & STARLINK-35155 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4173Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35155Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4173Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35155Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4173

    No nearby objects data