Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.201892E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T17:26:14+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 61711
    NORAD ID 61711
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3977 STARLINK-32312
    Time of Closest Approach 2026-09-06T09:50:37+0000
    Collision Probability (Pc) 1.201892E-6
    Conjunction Distance (km) 2.999 km
    Relative Speed (km/s) 12.226 km/s
    Conjunction Risk Parameters R (Radial): -2.981 | I (In-track): -0.186 | C (Cross-track): 0.254
    Collision Risk Index (CRI) 0.37
    X Position (km) 6368.92 6371.811
    Position Y (km) -2489.898 -2490.69
    Position Z (km) -91.336 -91.378
    Velocity X (km/s) 1.598 1.735
    Velocity Y (km/s) 4.29 4.235
    Velocity Z (km/s) -6.113 6.112

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3977 STARLINK-32312
    Semimajor Axis (a) 6837.880 km 6840.859 km
    Eccentricity (e) 0.000121 0.000080
    Inclination (i) 53.1587° 53.1622°
    RAAN 168.5915° 352.0144°
    Perigee Argument 78.6624° 88.8044°
    Mean Anomaly (M) 281.4514° 271.3049°
    Apogee 460.569 km 463.268 km
    Perigee 458.917 km 462.176 km
    Orbit Epoch 2026-09-04T03:56:36+0000 2026-09-03T16:11:28+0000

    STARLINK-3977 & STARLINK-32312 Collision Probability (Pc) Trend

    STARLINK-3977 & STARLINK-32312 Collision Probability (Pc) TrendNot Available

    STARLINK-3977 & STARLINK-32312 Miss Distance (Miss Distance) Trend

    STARLINK-3977 & STARLINK-32312 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3977Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-32312Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3977Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-32312Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3977

    No nearby objects data