Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.67889E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T02:12:48+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 53409
    NORAD ID 53409
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-2C R/B STARLINK-4490
    Time of Closest Approach 2026-10-20T20:16:09+0000
    Collision Probability (Pc) 9.67889E-7
    Conjunction Distance (km) 2.039 km
    Relative Speed (km/s) 2.583 km/s
    Conjunction Risk Parameters R (Radial): 1.894 | I (In-track): -0.74 | C (Cross-track): -0.14
    Collision Risk Index (CRI) 0.35
    X Position (km) -6339.765 -6341.452
    Position Y (km) 2112.238 2113.377
    Position Z (km) 1450.758 1450.654
    Velocity X (km/s) -1.172 -0.259
    Velocity Y (km/s) -6.375 -4.851
    Velocity Z (km/s) 4.019 5.893

    Orbital Parameters 国际轨道数据源

    Parameter CZ-2C R/B STARLINK-4490
    Semimajor Axis (a) 6818.665 km 6840.879 km
    Eccentricity (e) 0.004610 0.000140
    Inclination (i) 34.6559° 53.1570°
    RAAN 155.0657° 160.4408°
    Perigee Argument 140.6521° 94.4409°
    Mean Anomaly (M) 219.7557° 265.6753°
    Apogee 471.965 km 463.699 km
    Perigee 409.091 km 461.785 km
    Orbit Epoch 2026-10-19T00:39:59+0000 2026-10-19T01:59:40+0000

    CZ-2C R/B & STARLINK-4490 Collision Probability (Pc) Trend

    CZ-2C R/B & STARLINK-4490 Collision Probability (Pc) TrendNot Available

    CZ-2C R/B & STARLINK-4490 Miss Distance (Miss Distance) Trend

    CZ-2C R/B & STARLINK-4490 Miss Distance (Miss Distance) TrendNot Available

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

    Object 1 Miss Distance TrendNot Available

    STARLINK-4490Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-2C R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4490Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-2C R/B

    No nearby objects data