Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.349954E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T15:09:31+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 65138
    NORAD ID 65138
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HJ-1A KUIPER-00099
    Time of Closest Approach 2026-09-12T22:44:43+0000
    Collision Probability (Pc) 1.349954E-6
    Conjunction Distance (km) 2.949 km
    Relative Speed (km/s) 14.467 km/s
    Conjunction Risk Parameters R (Radial): 2.511 | I (In-track): 0.423 | C (Cross-track): -1.487
    Collision Risk Index (CRI) 0.38
    X Position (km) -3183.619 -3183.623
    Position Y (km) -5787.415 -5790.353
    Position Z (km) -2341.918 -2342.164
    Velocity X (km/s) -2.139 5.24
    Velocity Y (km/s) -1.673 -0.712
    Velocity Z (km/s) 7.03 -5.376

    Orbital Parameters 国际轨道数据源

    Parameter HJ-1A KUIPER-00099
    Semimajor Axis (a) 6994.371 km 7007.682 km
    Eccentricity (e) 0.001780 0.000037
    Inclination (i) 97.6772° 51.9035°
    RAAN 237.4742° 50.8970°
    Perigee Argument 209.9607° 90.2390°
    Mean Anomaly (M) 150.0591° 269.8615°
    Apogee 628.687 km 629.805 km
    Perigee 603.781 km 629.285 km
    Orbit Epoch 2026-09-11T22:33:47+0000 2026-09-11T15:01:45+0000

    HJ-1A & KUIPER-00099 Collision Probability (Pc) Trend

    HJ-1A & KUIPER-00099 Collision Probability (Pc) TrendNot Available

    HJ-1A & KUIPER-00099 Miss Distance (Miss Distance) Trend

    HJ-1A & KUIPER-00099 Miss Distance (Miss Distance) TrendNot Available

    HJ-1AMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    KUIPER-00099Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HJ-1ACollision Probability Trend

    Object 1 Probability TrendNot Available

    KUIPER-00099Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HJ-1A

    No nearby objects data