Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.163134E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T03:21:26+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 52687
    NORAD ID 52687
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 69991
    NORAD ID 69991
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3981 STARLINK-38042
    Time of Closest Approach 2026-10-20T17:34:54+0000
    Collision Probability (Pc) 2.163134E-6
    Conjunction Distance (km) 2.013 km
    Relative Speed (km/s) 9.738 km/s
    Conjunction Risk Parameters R (Radial): 1.687 | I (In-track): -0.841 | C (Cross-track): -0.707
    Collision Risk Index (CRI) 0.42
    X Position (km) -3575.189 -3575.166
    Position Y (km) 2613.004 2613.627
    Position Z (km) -5224.858 -5226.771
    Velocity X (km/s) -5.925 -3.719
    Velocity Y (km/s) -4.429 4.571
    Velocity Z (km/s) 1.84 4.833

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3981 STARLINK-38042
    Semimajor Axis (a) 6843.380 km 6843.620 km
    Eccentricity (e) 0.000133 0.000100
    Inclination (i) 53.1579° 97.2832°
    RAAN 213.2888° 133.4223°
    Perigee Argument 92.6458° 79.7643°
    Mean Anomaly (M) 267.4696° 280.3713°
    Apogee 466.153 km 466.168 km
    Perigee 464.333 km 464.798 km
    Orbit Epoch 2026-10-19T04:21:28+0000 2026-10-18T23:31:02+0000

    STARLINK-3981 & STARLINK-38042 Collision Probability (Pc) Trend

    STARLINK-3981 & STARLINK-38042 Collision Probability (Pc) TrendNot Available

    STARLINK-3981 & STARLINK-38042 Miss Distance (Miss Distance) Trend

    STARLINK-3981 & STARLINK-38042 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3981Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-38042Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3981Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-38042Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3981

    No nearby objects data