Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.012356E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-29T16:46:39+0800
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    1 Object 1

    Name HJ-2E
    AOE ID 54035
    NORAD ID 54035
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    Name KOYOH
    AOE ID 58464
    NORAD ID 58464
    Object Type PAYLOAD
    Country
    JP JP

    Conjunction Constraints

    Parameter HJ-2E KOYOH
    Time of Closest Approach 2026-10-29T10:45:55+0000
    Collision Probability (Pc) 1.012356E-5
    Conjunction Distance (km) 1.191 km
    Relative Speed (km/s) 8.634 km/s
    Conjunction Risk Parameters R (Radial): 0.807 | I (In-track): -0.725 | C (Cross-track): -0.49
    Collision Risk Index (CRI) 0.55
    X Position (km) -371.778 -371.005
    Position Y (km) -1017.848 -1018.285
    Position Z (km) 6791.6 6792.393
    Velocity X (km/s) -4.345 -7.373
    Velocity Y (km/s) 6.208 -1.762
    Velocity Z (km/s) 0.691 -0.67

    Orbital Parameters 国际轨道数据源

    Parameter HJ-2E KOYOH
    Semimajor Axis (a) 6882.515 km 6885.655 km
    Eccentricity (e) 0.000352 0.000643
    Inclination (i) 97.3845° 97.5189°
    RAAN 303.5215° 13.3037°
    Perigee Argument 271.5732° 189.0342°
    Mean Anomaly (M) 88.5100° 171.0778°
    Apogee 506.802 km 511.945 km
    Perigee 501.954 km 503.091 km
    Orbit Epoch 2026-10-28T15:26:26+0000 2026-10-28T15:22:55+0000

    HJ-2E & KOYOH Collision Probability (Pc) Trend

    HJ-2E & KOYOH Collision Probability (Pc) TrendNot Available

    HJ-2E & KOYOH Miss Distance (Miss Distance) Trend

    HJ-2E & KOYOH Miss Distance (Miss Distance) TrendNot Available

    HJ-2EMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    KOYOHMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HJ-2ECollision Probability Trend

    Object 1 Probability TrendNot Available

    KOYOHCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HJ-2E

    No nearby objects data