Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    6.746061E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T06:57:22+0800
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    1 Object 1

    AOE ID 26121
    NORAD ID 26121
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 65875
    NORAD ID 65875
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4 DEB STARLINK-34688
    Time of Closest Approach 2026-10-21T10:45:37+0000
    Collision Probability (Pc) 6.746061E-6
    Conjunction Distance (km) 1.418 km
    Relative Speed (km/s) 11.375 km/s
    Conjunction Risk Parameters R (Radial): 1.124 | I (In-track): -0.586 | C (Cross-track): -0.635
    Collision Risk Index (CRI) 0.52
    X Position (km) 3144.116 3142.85
    Position Y (km) 2696.383 2695.942
    Position Z (km) 5434.064 5433.602
    Velocity X (km/s) -3.243 -5.582
    Velocity Y (km/s) -5.287 5.175
    Velocity Z (km/s) 4.464 0.66

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4 DEB STARLINK-34688
    Semimajor Axis (a) 6845.051 km 6840.782 km
    Eccentricity (e) 0.002833 0.000256
    Inclination (i) 98.6774° 53.1547°
    RAAN 49.7153° 331.9273°
    Perigee Argument 129.1017° 81.6992°
    Mean Anomaly (M) 231.2748° 278.4301°
    Apogee 486.309 km 464.395 km
    Perigee 447.519 km 460.895 km
    Orbit Epoch 2026-10-19T08:23:57+0000 2026-10-19T02:07:24+0000

    CZ-4 DEB & STARLINK-34688 Collision Probability (Pc) Trend

    CZ-4 DEB & STARLINK-34688 Collision Probability (Pc) TrendNot Available

    CZ-4 DEB & STARLINK-34688 Miss Distance (Miss Distance) Trend

    CZ-4 DEB & STARLINK-34688 Miss Distance (Miss Distance) TrendNot Available

    CZ-4 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34688Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34688Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4 DEB

    No nearby objects data