Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.083352E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T22:08:09+0800
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    1 Object 1

    AOE ID 66749
    NORAD ID 66749
    Object Type PAYLOAD
    Country
    PL PL
    ← VS →

    2 Object 2

    Name HJS-9D
    AOE ID 68834
    NORAD ID 68834
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter PIAST-S1 HJS-9D
    Time of Closest Approach 2026-10-20T20:23:59+0000
    Collision Probability (Pc) 1.083352E-5
    Conjunction Distance (km) 1.301 km
    Relative Speed (km/s) 14.763 km/s
    Conjunction Risk Parameters R (Radial): -1.264 | I (In-track): -0.073 | C (Cross-track): -0.297
    Collision Risk Index (CRI) 0.56
    X Position (km) -6717.295 -6716.105
    Position Y (km) -459.446 -459.079
    Position Z (km) -1432.228 -1431.855
    Velocity X (km/s) 1.491 -0.96
    Velocity Y (km/s) 1.107 -4.54
    Velocity Z (km/s) -7.38 6.037

    Orbital Parameters 国际轨道数据源

    Parameter PIAST-S1 HJS-9D
    Semimajor Axis (a) 6879.831 km 6884.732 km
    Eccentricity (e) 0.000099 0.001618
    Inclination (i) 97.4075° 54.9955°
    RAAN 3.5875° 199.3758°
    Perigee Argument 218.1091° 46.0960°
    Mean Anomaly (M) 142.0075° 314.1392°
    Apogee 502.374 km 517.734 km
    Perigee 501.014 km 495.456 km
    Orbit Epoch 2026-10-18T21:46:53+0000 2026-10-19T06:34:50+0000

    PIAST-S1 & HJS-9D Collision Probability (Pc) Trend

    PIAST-S1 & HJS-9D Collision Probability (Pc) TrendNot Available

    PIAST-S1 & HJS-9D Miss Distance (Miss Distance) Trend

    PIAST-S1 & HJS-9D Miss Distance (Miss Distance) TrendNot Available

    PIAST-S1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    HJS-9DMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    PIAST-S1Collision Probability Trend

    Object 1 Probability TrendNot Available

    HJS-9DCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with PIAST-S1

    No nearby objects data