Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.331146E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T20:07:45+0800
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    1 Object 1

    AOE ID 35251
    NORAD ID 35251
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    Name LYRA-4
    AOE ID 64691
    NORAD ID 64691
    Object Type PAYLOAD
    Country
    AU AU

    Conjunction Constraints

    Parameter CZ-4C DEB LYRA-4
    Time of Closest Approach 2026-11-01T15:55:45+0000
    Collision Probability (Pc) 1.331146E-6
    Conjunction Distance (km) 2.982 km
    Relative Speed (km/s) 14.459 km/s
    Conjunction Risk Parameters R (Radial): 1.68 | I (In-track): -0.689 | C (Cross-track): 2.366
    Collision Risk Index (CRI) 0.37
    X Position (km) 2333.953 2332.799
    Position Y (km) 2135.349 2137.632
    Position Z (km) -6295.596 -6297.128
    Velocity X (km/s) -3.12 5.991
    Velocity Y (km/s) -5.982 3.114
    Velocity Z (km/s) -3.301 3.28

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4C DEB LYRA-4
    Semimajor Axis (a) 7034.402 km 7030.342 km
    Eccentricity (e) 0.013652 0.001424
    Inclination (i) 97.9265° 96.0099°
    RAAN 235.7269° 28.0410°
    Perigee Argument 160.4319° 114.3934°
    Mean Anomaly (M) 200.2201° 245.8766°
    Apogee 752.298 km 662.215 km
    Perigee 560.232 km 642.195 km
    Orbit Epoch 2026-10-29T18:17:21+0000 2026-10-29T11:34:55+0000

    CZ-4C DEB & LYRA-4 Collision Probability (Pc) Trend

    CZ-4C DEB & LYRA-4 Collision Probability (Pc) TrendNot Available

    CZ-4C DEB & LYRA-4 Miss Distance (Miss Distance) Trend

    CZ-4C DEB & LYRA-4 Miss Distance (Miss Distance) TrendNot Available

    CZ-4C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    LYRA-4Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    LYRA-4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4C DEB

    No nearby objects data