Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.2199E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T02:01:17+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 52692
    NORAD ID 52692
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53831
    NORAD ID 53831
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3993 STARLINK-4649
    Time of Closest Approach 2026-10-29T00:13:33+0000
    Collision Probability (Pc) 3.2199E-6
    Conjunction Distance (km) 1.816 km
    Relative Speed (km/s) 11.857 km/s
    Conjunction Risk Parameters R (Radial): 0.079 | I (In-track): 1.144 | C (Cross-track): -1.408
    Collision Risk Index (CRI) 0.45
    X Position (km) -5821.21 -5822.091
    Position Y (km) 2921.809 2920.221
    Position Z (km) -2102.185 -2102.208
    Velocity X (km/s) -3.779 -0.533
    Velocity Y (km/s) -3.482 -5.11
    Velocity Z (km/s) 5.643 -5.643

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3993 STARLINK-4649
    Semimajor Axis (a) 6840.890 km 6840.541 km
    Eccentricity (e) 0.000127 0.000327
    Inclination (i) 53.1613° 53.1582°
    RAAN 176.4669° 328.3643°
    Perigee Argument 88.0073° 79.7817°
    Mean Anomaly (M) 272.1075° 280.3555°
    Apogee 463.624 km 464.643 km
    Perigee 461.882 km 460.165 km
    Orbit Epoch 2026-10-27T01:25:34+0000 2026-10-27T02:01:02+0000

    STARLINK-3993 & STARLINK-4649 Collision Probability (Pc) Trend

    STARLINK-3993 & STARLINK-4649 Collision Probability (Pc) TrendNot Available

    STARLINK-3993 & STARLINK-4649 Miss Distance (Miss Distance) Trend

    STARLINK-3993 & STARLINK-4649 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3993Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4649Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3993Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4649Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3993

    No nearby objects data