Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    7.624102E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T12:54:23+0800
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    1 Object 1

    AOE ID 1272
    NORAD ID 1272
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 29857
    NORAD ID 29857
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter PORCUPINE 1 FENGYUN 1C DEB
    Time of Closest Approach 2026-09-12T17:13:05+0000
    Collision Probability (Pc) 7.624102E-6
    Conjunction Distance (km) 1.442 km
    Relative Speed (km/s) 14.748 km/s
    Conjunction Risk Parameters R (Radial): 1.418 | I (In-track): 0.005 | C (Cross-track): -0.26
    Collision Risk Index (CRI) 0.53
    X Position (km) 3803.351 3803.871
    Position Y (km) 5720.285 5721.51
    Position Z (km) -2411.851 -2412.405
    Velocity X (km/s) -0.965 -0.449
    Velocity Y (km/s) 3.377 -2.76
    Velocity Z (km/s) 6.521 -6.88

    Orbital Parameters 国际轨道数据源

    Parameter PORCUPINE 1 FENGYUN 1C DEB
    Semimajor Axis (a) 7290.895 km 7332.374 km
    Eccentricity (e) 0.002202 0.018972
    Inclination (i) 70.0784° 98.4332°
    RAAN 67.9522° 237.3859°
    Perigee Argument 3.4122° 272.9511°
    Mean Anomaly (M) 356.7129° 84.9949°
    Apogee 928.811 km 1093.347 km
    Perigee 896.705 km 815.127 km
    Orbit Epoch 2026-09-10T17:06:57+0000 2026-09-10T12:08:12+0000

    PORCUPINE 1 & FENGYUN 1C DEB Collision Probability (Pc) Trend

    PORCUPINE 1 & FENGYUN 1C DEB Collision Probability (Pc) TrendNot Available

    PORCUPINE 1 & FENGYUN 1C DEB Miss Distance (Miss Distance) Trend

    PORCUPINE 1 & FENGYUN 1C DEB Miss Distance (Miss Distance) TrendNot Available

    PORCUPINE 1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    PORCUPINE 1Collision Probability Trend

    Object 1 Probability TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with PORCUPINE 1

    No nearby objects data