Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.276903E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T17:14:55+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 40337
    NORAD ID 40337
    Object Type ROCKET BODY
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 58770
    NORAD ID 58770
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4B R/B STARLINK-31143
    Time of Closest Approach 2026-10-29T20:37:21+0000
    Collision Probability (Pc) 3.276903E-6
    Conjunction Distance (km) 1.662 km
    Relative Speed (km/s) 8.196 km/s
    Conjunction Risk Parameters R (Radial): -1.661 | I (In-track): 0.005 | C (Cross-track): 0.023
    Collision Risk Index (CRI) 0.45
    X Position (km) -3693.291 -3692.376
    Position Y (km) -3537.808 -3536.961
    Position Z (km) -4553.011 -4551.913
    Velocity X (km/s) 2.589 6.418
    Velocity Y (km/s) 4.575 -2.332
    Velocity Z (km/s) -5.587 -3.397

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4B R/B STARLINK-31143
    Semimajor Axis (a) 6925.862 km 6840.875 km
    Eccentricity (e) 0.013796 0.000111
    Inclination (i) 98.4715° 53.1607°
    RAAN 49.2308° 10.9330°
    Perigee Argument 256.1253° 110.0167°
    Mean Anomaly (M) 102.4592° 250.0955°
    Apogee 643.274 km 463.499 km
    Perigee 452.176 km 461.977 km
    Orbit Epoch 2026-10-27T21:23:35+0000 2026-10-27T22:15:47+0000

    CZ-4B R/B & STARLINK-31143 Collision Probability (Pc) Trend

    CZ-4B R/B & STARLINK-31143 Collision Probability (Pc) TrendNot Available

    CZ-4B R/B & STARLINK-31143 Miss Distance (Miss Distance) Trend

    CZ-4B R/B & STARLINK-31143 Miss Distance (Miss Distance) TrendNot Available

    CZ-4B R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31143Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4B R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31143Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4B R/B

    No nearby objects data