Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    6.998509E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T21:04:40+0800
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    1 Object 1

    AOE ID 40531
    NORAD ID 40531
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 68485
    NORAD ID 68485
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4B DEB CAPELLA-20 (ACADIA)
    Time of Closest Approach 2026-10-22T22:32:03+0000
    Collision Probability (Pc) 6.998509E-4
    Conjunction Distance (km) 0.217 km
    Relative Speed (km/s) 12.647 km/s
    Conjunction Risk Parameters R (Radial): 0.008 | I (In-track): -0.117 | C (Cross-track): -0.181
    Collision Risk Index (CRI) 0.92
    X Position (km) 391.441 391.311
    Position Y (km) -1787.353 -1787.19
    Position Z (km) -6741.501 -6741.559
    Velocity X (km/s) 7.559 -2.476
    Velocity Y (km/s) 0.654 -6.926
    Velocity Z (km/s) 0.358 1.693

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4B DEB CAPELLA-20 (ACADIA)
    Semimajor Axis (a) 7075.448 km 6982.443 km
    Eccentricity (e) 0.018029 0.000978
    Inclination (i) 74.9705° 97.7728°
    RAAN 7.8821° 250.2311°
    Perigee Argument 317.9803° 294.2132°
    Mean Anomaly (M) 40.7652° 51.9250°
    Apogee 824.875 km 611.132 km
    Perigee 569.747 km 597.480 km
    Orbit Epoch 2026-10-20T21:32:40+0000 2026-10-21T00:00:02+0000

    CZ-4B DEB & CAPELLA-20 (ACADIA) Collision Probability (Pc) Trend

    CZ-4B DEB & CAPELLA-20 (ACADIA) Collision Probability (Pc) TrendNot Available

    CZ-4B DEB & CAPELLA-20 (ACADIA) Miss Distance (Miss Distance) Trend

    CZ-4B DEB & CAPELLA-20 (ACADIA) Miss Distance (Miss Distance) TrendNot Available

    CZ-4B DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    CAPELLA-20 (ACADIA)Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4B DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    CAPELLA-20 (ACADIA)Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4B DEB

    No nearby objects data