Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.589854E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-25T05:20:52+0800
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    1 Object 1

    Name HJ-1B
    AOE ID 33321
    NORAD ID 33321
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 69618
    NORAD ID 69618
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HJ-1B KUIPER-00551
    Time of Closest Approach 2026-10-25T19:10:39+0000
    Collision Probability (Pc) 1.589854E-6
    Conjunction Distance (km) 2.61 km
    Relative Speed (km/s) 14.178 km/s
    Conjunction Risk Parameters R (Radial): -0.33 | I (In-track): -0.888 | C (Cross-track): 2.432
    Collision Risk Index (CRI) 0.39
    X Position (km) 666.681 664.504
    Position Y (km) -5591.341 -5592.095
    Position Z (km) 4137.657 4136.431
    Velocity X (km/s) -1.768 6.08
    Velocity Y (km/s) 4.264 -2.173
    Velocity Z (km/s) 5.984 -3.914

    Orbital Parameters 国际轨道数据源

    Parameter HJ-1B KUIPER-00551
    Semimajor Axis (a) 6996.391 km 6983.094 km
    Eccentricity (e) 0.003740 0.001504
    Inclination (i) 97.6664° 51.8984°
    RAAN 281.0487° 138.9086°
    Perigee Argument 118.1856° 272.3687°
    Mean Anomaly (M) 242.3145° 197.4816°
    Apogee 644.423 km 615.464 km
    Perigee 592.085 km 594.450 km
    Orbit Epoch 2026-10-24T07:23:59+0000 2026-10-24T06:00:02+0000

    HJ-1B & KUIPER-00551 Collision Probability (Pc) Trend

    HJ-1B & KUIPER-00551 Collision Probability (Pc) TrendNot Available

    HJ-1B & KUIPER-00551 Miss Distance (Miss Distance) Trend

    HJ-1B & KUIPER-00551 Miss Distance (Miss Distance) TrendNot Available

    HJ-1BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    KUIPER-00551Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HJ-1BCollision Probability Trend

    Object 1 Probability TrendNot Available

    KUIPER-00551Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HJ-1B

    No nearby objects data