Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.06675E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T15:13:08+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 52794
    NORAD ID 52794
    Object Type ROCKET BODY
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 64127
    NORAD ID 64127
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-2C R/B STARLINK-11721
    Time of Closest Approach 2026-09-11T17:34:35+0000
    Collision Probability (Pc) 3.06675E-6
    Conjunction Distance (km) 1.796 km
    Relative Speed (km/s) 10.484 km/s
    Conjunction Risk Parameters R (Radial): -1.759 | I (In-track): -0.258 | C (Cross-track): -0.246
    Collision Risk Index (CRI) 0.45
    X Position (km) -120.951 -121.277
    Position Y (km) -6323.25 -6321.598
    Position Z (km) -2320.181 -2319.555
    Velocity X (km/s) 5.285 5.96
    Velocity Y (km/s) 1.854 -1.774
    Velocity Z (km/s) -5.28 4.532

    Orbital Parameters 国际轨道数据源

    Parameter CZ-2C R/B STARLINK-11721
    Semimajor Axis (a) 6742.278 km 6734.540 km
    Eccentricity (e) 0.003001 0.000157
    Inclination (i) 50.1826° 43.0004°
    RAAN 75.2933° 299.7231°
    Perigee Argument 269.0933° 267.9096°
    Mean Anomaly (M) 90.6604° 92.1592°
    Apogee 384.378 km 357.457 km
    Perigee 343.904 km 355.349 km
    Orbit Epoch 2026-09-10T22:20:45+0000 2026-09-10T11:11:23+0000

    CZ-2C R/B & STARLINK-11721 Collision Probability (Pc) Trend

    CZ-2C R/B & STARLINK-11721 Collision Probability (Pc) TrendNot Available

    CZ-2C R/B & STARLINK-11721 Miss Distance (Miss Distance) Trend

    CZ-2C R/B & STARLINK-11721 Miss Distance (Miss Distance) TrendNot Available

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

    Object 1 Miss Distance TrendNot Available

    STARLINK-11721Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-2C R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-11721Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-2C R/B

    No nearby objects data