Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.950189E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-23T17:47:09+0800
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    1 Object 1

    AOE ID 1577
    NORAD ID 1577
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 65997
    NORAD ID 65997
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter PORCUPINE 2 HULIANWANG DIGUI-89
    Time of Closest Approach 2026-10-23T18:39:16+0000
    Collision Probability (Pc) 1.950189E-6
    Conjunction Distance (km) 2.27 km
    Relative Speed (km/s) 12.878 km/s
    Conjunction Risk Parameters R (Radial): -0.982 | I (In-track): 0.947 | C (Cross-track): 1.815
    Collision Risk Index (CRI) 0.41
    X Position (km) 4971.919 4969.798
    Position Y (km) 3169.292 3170.09
    Position Z (km) -4688.175 -4688.305
    Velocity X (km/s) -3.773 -1.037
    Velocity Y (km/s) -2.413 6.424
    Velocity Z (km/s) -5.712 3.247

    Orbital Parameters 国际轨道数据源

    Parameter PORCUPINE 2 HULIANWANG DIGUI-89
    Semimajor Axis (a) 7501.323 km 7527.431 km
    Eccentricity (e) 0.007164 0.000074
    Inclination (i) 90.0426° 49.9973°
    RAAN 212.5450° 78.4366°
    Perigee Argument 102.8842° 169.6146°
    Mean Anomaly (M) 329.2332° 190.4742°
    Apogee 1176.924 km 1149.849 km
    Perigee 1069.448 km 1148.739 km
    Orbit Epoch 2026-10-22T20:21:46+0000 2026-10-22T15:51:46+0000

    PORCUPINE 2 & HULIANWANG DIGUI-89 Collision Probability (Pc) Trend

    PORCUPINE 2 & HULIANWANG DIGUI-89 Collision Probability (Pc) TrendNot Available

    PORCUPINE 2 & HULIANWANG DIGUI-89 Miss Distance (Miss Distance) Trend

    PORCUPINE 2 & HULIANWANG DIGUI-89 Miss Distance (Miss Distance) TrendNot Available

    PORCUPINE 2Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    HULIANWANG DIGUI-89Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    PORCUPINE 2Collision Probability Trend

    Object 1 Probability TrendNot Available

    HULIANWANG DIGUI-89Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with PORCUPINE 2

    No nearby objects data