Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.339362E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-12T20:49:43+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 52913
    NORAD ID 52913
    Object Type ROCKET BODY
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 53715
    NORAD ID 53715
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4C R/B STARLINK-4686
    Time of Closest Approach 2026-10-12T23:28:12+0000
    Collision Probability (Pc) 1.339362E-6
    Conjunction Distance (km) 2.471 km
    Relative Speed (km/s) 9.038 km/s
    Conjunction Risk Parameters R (Radial): 2.259 | I (In-track): -0.809 | C (Cross-track): -0.592
    Collision Risk Index (CRI) 0.38
    X Position (km) -1329.405 -1329.258
    Position Y (km) 4501.357 4502.327
    Position Z (km) 4964.221 4966.489
    Velocity X (km/s) -0.061 -7.164
    Velocity Y (km/s) 5.68 0.71
    Velocity Z (km/s) -5.109 -2.555

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4C R/B STARLINK-4686
    Semimajor Axis (a) 6837.342 km 6840.889 km
    Eccentricity (e) 0.004313 0.000101
    Inclination (i) 98.0139° 53.1601°
    RAAN 276.7953° 342.0727°
    Perigee Argument 48.8525° 90.1329°
    Mean Anomaly (M) 311.6426° 269.9789°
    Apogee 488.692 km 463.441 km
    Perigee 429.718 km 462.063 km
    Orbit Epoch 2026-10-11T23:26:21+0000 2026-10-12T07:20:24+0000

    CZ-4C R/B & STARLINK-4686 Collision Probability (Pc) Trend

    CZ-4C R/B & STARLINK-4686 Collision Probability (Pc) TrendNot Available

    CZ-4C R/B & STARLINK-4686 Miss Distance (Miss Distance) Trend

    CZ-4C R/B & STARLINK-4686 Miss Distance (Miss Distance) TrendNot Available

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

    Object 1 Miss Distance TrendNot Available

    STARLINK-4686Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4C R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4686Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4C R/B

    No nearby objects data