Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.996465E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T21:23:50+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 53167
    NORAD ID 53167
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53256
    NORAD ID 53256
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3683 STARLINK-4147
    Time of Closest Approach 2026-10-30T05:47:26+0000
    Collision Probability (Pc) 7.996465E-7
    Conjunction Distance (km) 2.812 km
    Relative Speed (km/s) 5.11 km/s
    Conjunction Risk Parameters R (Radial): 2.579 | I (In-track): -1.056 | C (Cross-track): -0.373
    Collision Risk Index (CRI) 0.33
    X Position (km) 524.067 523.153
    Position Y (km) -4315.87 -4317.633
    Position Z (km) 5268.066 5270.055
    Velocity X (km/s) 7.386 6.91
    Velocity Y (km/s) -1.09 2.825
    Velocity Z (km/s) -1.624 1.624

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3683 STARLINK-4147
    Semimajor Axis (a) 6837.846 km 6840.869 km
    Eccentricity (e) 0.000125 0.000164
    Inclination (i) 53.1562° 53.1590°
    RAAN 173.1197° 225.6863°
    Perigee Argument 81.7028° 71.2287°
    Mean Anomaly (M) 127.5567° 288.8893°
    Apogee 460.564 km 463.852 km
    Perigee 458.854 km 461.612 km
    Orbit Epoch 2026-10-27T22:00:02+0000 2026-10-27T05:33:27+0000

    STARLINK-3683 & STARLINK-4147 Collision Probability (Pc) Trend

    STARLINK-3683 & STARLINK-4147 Collision Probability (Pc) TrendNot Available

    STARLINK-3683 & STARLINK-4147 Miss Distance (Miss Distance) Trend

    STARLINK-3683 & STARLINK-4147 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3683Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4147Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3683Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4147Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3683

    No nearby objects data