Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.852553E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T17:58:43+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 52640
    NORAD ID 52640
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 64618
    NORAD ID 64618
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3977 STARLINK-34415
    Time of Closest Approach 2026-09-04T21:35:37+0000
    Collision Probability (Pc) 7.852553E-7
    Conjunction Distance (km) 2.998 km
    Relative Speed (km/s) 5.68 km/s
    Conjunction Risk Parameters R (Radial): -2.722 | I (In-track): -1.164 | C (Cross-track): 0.461
    Collision Risk Index (CRI) 0.33
    X Position (km) 978.566 980.176
    Position Y (km) -4303.326 -4304.759
    Position Z (km) 5213.34 5215.422
    Velocity X (km/s) 7.398 6.434
    Velocity Y (km/s) -0.543 3.689
    Velocity Z (km/s) -1.832 1.831

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3977 STARLINK-34415
    Semimajor Axis (a) 6837.880 km 6840.830 km
    Eccentricity (e) 0.000121 0.000138
    Inclination (i) 53.1587° 53.1569°
    RAAN 168.5915° 226.3327°
    Perigee Argument 78.6624° 88.8466°
    Mean Anomaly (M) 281.4514° 271.2695°
    Apogee 460.569 km 463.640 km
    Perigee 458.917 km 461.746 km
    Orbit Epoch 2026-09-04T03:56:36+0000 2026-09-03T15:34:39+0000

    STARLINK-3977 & STARLINK-34415 Collision Probability (Pc) Trend

    STARLINK-3977 & STARLINK-34415 Collision Probability (Pc) TrendNot Available

    STARLINK-3977 & STARLINK-34415 Miss Distance (Miss Distance) Trend

    STARLINK-3977 & STARLINK-34415 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3977Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34415Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3977Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34415Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3977

    No nearby objects data