Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.382195E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T03:30:17+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 53002
    NORAD ID 53002
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66276
    NORAD ID 66276
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4121 STARLINK-35742
    Time of Closest Approach 2026-10-20T16:49:48+0000
    Collision Probability (Pc) 1.382195E-6
    Conjunction Distance (km) 2.326 km
    Relative Speed (km/s) 7.868 km/s
    Conjunction Risk Parameters R (Radial): 2.315 | I (In-track): 0.183 | C (Cross-track): 0.123
    Collision Risk Index (CRI) 0.38
    X Position (km) 217.149 217.442
    Position Y (km) -4774.373 -4775.973
    Position Z (km) 4880.527 4882.188
    Velocity X (km/s) 6.671 6.415
    Velocity Y (km/s) -2.514 3.109
    Velocity Z (km/s) -2.749 2.748

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4121 STARLINK-35742
    Semimajor Axis (a) 6837.877 km 6840.777 km
    Eccentricity (e) 0.000139 0.000200
    Inclination (i) 53.1575° 53.1546°
    RAAN 150.2903° 229.9983°
    Perigee Argument 88.5503° 92.4688°
    Mean Anomaly (M) 271.5660° 267.6543°
    Apogee 460.692 km 464.008 km
    Perigee 458.788 km 461.272 km
    Orbit Epoch 2026-10-19T01:16:06+0000 2026-10-19T03:02:23+0000

    STARLINK-4121 & STARLINK-35742 Collision Probability (Pc) Trend

    STARLINK-4121 & STARLINK-35742 Collision Probability (Pc) TrendNot Available

    STARLINK-4121 & STARLINK-35742 Miss Distance (Miss Distance) Trend

    STARLINK-4121 & STARLINK-35742 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4121Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35742Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4121Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35742Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4121

    No nearby objects data