Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.012314E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-22T10:59:07+0800
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    1 Object 1

    Name HJ-1A
    AOE ID 33320
    NORAD ID 33320
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 68948
    NORAD ID 68948
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HJ-1A KUIPER-00454
    Time of Closest Approach 2026-10-22T03:54:54+0000
    Collision Probability (Pc) 1.012314E-6
    Conjunction Distance (km) 2.879 km
    Relative Speed (km/s) 8.27 km/s
    Conjunction Risk Parameters R (Radial): -0.771 | I (In-track): 2.317 | C (Cross-track): -1.523
    Collision Risk Index (CRI) 0.35
    X Position (km) 71.572 72.682
    Position Y (km) 5205.019 5207.287
    Position Z (km) -4697.847 -4696.467
    Velocity X (km/s) 1.288 -6.301
    Velocity Y (km/s) -4.971 -2.718
    Velocity Z (km/s) -5.506 -3.113

    Orbital Parameters 国际轨道数据源

    Parameter HJ-1A KUIPER-00454
    Semimajor Axis (a) 6994.163 km 7007.710 km
    Eccentricity (e) 0.002054 0.000107
    Inclination (i) 97.6841° 51.8980°
    RAAN 275.9111° 227.0433°
    Perigee Argument 82.6281° 88.1625°
    Mean Anomaly (M) 277.7268° 271.9461°
    Apogee 630.395 km 630.327 km
    Perigee 601.657 km 628.819 km
    Orbit Epoch 2026-10-21T20:26:44+0000 2026-10-21T12:15:23+0000

    HJ-1A & KUIPER-00454 Collision Probability (Pc) Trend

    HJ-1A & KUIPER-00454 Collision Probability (Pc) TrendNot Available

    HJ-1A & KUIPER-00454 Miss Distance (Miss Distance) Trend

    HJ-1A & KUIPER-00454 Miss Distance (Miss Distance) TrendNot Available

    HJ-1AMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    KUIPER-00454Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HJ-1ACollision Probability Trend

    Object 1 Probability TrendNot Available

    KUIPER-00454Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HJ-1A

    No nearby objects data