Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.293974E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-24T22:16:49+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 52641
    NORAD ID 52641
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 68311
    NORAD ID 68311
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3991 STARLINK-37140
    Time of Closest Approach 2026-10-25T13:29:40+0000
    Collision Probability (Pc) 1.293974E-6
    Conjunction Distance (km) 2.991 km
    Relative Speed (km/s) 13.848 km/s
    Conjunction Risk Parameters R (Radial): -2.94 | I (In-track): 0.225 | C (Cross-track): 0.502
    Collision Risk Index (CRI) 0.37
    X Position (km) 2657.949 2656.309
    Position Y (km) 3897.192 3895.571
    Position Z (km) 4955.743 4953.837
    Velocity X (km/s) -3.948 -1.906
    Velocity Y (km/s) 5.998 -5.288
    Velocity Z (km/s) -2.593 5.167

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3991 STARLINK-37140
    Semimajor Axis (a) 6848.899 km 6843.711 km
    Eccentricity (e) 0.000129 0.000113
    Inclination (i) 53.1600° 97.2860°
    RAAN 296.2733° 61.6908°
    Perigee Argument 78.2004° 104.3381°
    Mean Anomaly (M) 281.9142° 255.7987°
    Apogee 471.648 km 466.345 km
    Perigee 469.876 km 464.803 km
    Orbit Epoch 2026-10-23T17:08:45+0000 2026-10-23T19:00:22+0000

    STARLINK-3991 & STARLINK-37140 Collision Probability (Pc) Trend

    STARLINK-3991 & STARLINK-37140 Collision Probability (Pc) TrendNot Available

    STARLINK-3991 & STARLINK-37140 Miss Distance (Miss Distance) Trend

    STARLINK-3991 & STARLINK-37140 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3991Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37140Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3991Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37140Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3991

    No nearby objects data