Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.708954E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T04:56:26+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 43084
    NORAD ID 43084
    Object Type ROCKET BODY
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 47978
    NORAD ID 47978
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-2C R/B STARLINK-1647
    Time of Closest Approach 2026-10-21T13:24:35+0000
    Collision Probability (Pc) 1.708954E-6
    Conjunction Distance (km) 2.242 km
    Relative Speed (km/s) 9.915 km/s
    Conjunction Risk Parameters R (Radial): 1.174 | I (In-track): 1.456 | C (Cross-track): -1.236
    Collision Risk Index (CRI) 0.4
    X Position (km) -6326.816 -6328.432
    Position Y (km) 1477.958 1476.406
    Position Z (km) 2123.532 2123.572
    Velocity X (km/s) -0.316 -2.896
    Velocity Y (km/s) -6.706 -4.271
    Velocity Z (km/s) 3.625 -5.633

    Orbital Parameters 国际轨道数据源

    Parameter CZ-2C R/B STARLINK-1647
    Semimajor Axis (a) 6818.581 km 6838.305 km
    Eccentricity (e) 0.004615 0.000108
    Inclination (i) 34.6558° 53.1598°
    RAAN 148.7530° 6.0067°
    Perigee Argument 149.9379° 65.6141°
    Mean Anomaly (M) 210.3997° 356.7409°
    Apogee 471.912 km 460.904 km
    Perigee 408.976 km 459.432 km
    Orbit Epoch 2026-10-19T23:58:27+0000 2026-10-20T12:00:03+0000

    CZ-2C R/B & STARLINK-1647 Collision Probability (Pc) Trend

    CZ-2C R/B & STARLINK-1647 Collision Probability (Pc) TrendNot Available

    CZ-2C R/B & STARLINK-1647 Miss Distance (Miss Distance) Trend

    CZ-2C R/B & STARLINK-1647 Miss Distance (Miss Distance) TrendNot Available

    CZ-2C R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-1647Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-2C R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-1647Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-2C R/B

    No nearby objects data