Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    6.592683E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T20:52:20+0800
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    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) 6.592683E-7
    Conjunction Distance (km) 2.506 km
    Relative Speed (km/s) 2.583 km/s
    Conjunction Risk Parameters R (Radial): -1.797 | I (In-track): 1.723 | C (Cross-track): -0.284
    Collision Risk Index (CRI) 0.31
    X Position (km) -6339.949 -6341.449
    Position Y (km) 2111.767 2113.617
    Position Z (km) 1451.1 1450.322
    Velocity X (km/s) -1.172 -0.26
    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) 6818.581 km 6840.882 km
    Eccentricity (e) 0.004615 0.000139
    Inclination (i) 34.6558° 53.1570°
    RAAN 148.7530° 159.2227°
    Perigee Argument 149.9379° 94.7920°
    Mean Anomaly (M) 210.3997° 265.3241°
    Apogee 471.912 km 463.697 km
    Perigee 408.976 km 461.793 km
    Orbit Epoch 2026-10-19T23:58:27+0000 2026-10-19T08:14:51+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