Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.631471E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T23:15:18+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 66037
    NORAD ID 66037
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter PORCUPINE 2 QIANFAN-95
    Time of Closest Approach 2026-10-21T15:47:45+0000
    Collision Probability (Pc) 1.631471E-6
    Conjunction Distance (km) 2.6 km
    Relative Speed (km/s) 14.659 km/s
    Conjunction Risk Parameters R (Radial): -2.09 | I (In-track): 0.036 | C (Cross-track): 1.545
    Collision Risk Index (CRI) 0.39
    X Position (km) 2098.903 2097.51
    Position Y (km) 1345.353 1346.295
    Position Z (km) 7010.915 7008.932
    Velocity X (km/s) 5.836 -6.001
    Velocity Y (km/s) 3.722 -3.403
    Velocity Z (km/s) -2.454 2.444

    Orbital Parameters 国际轨道数据源

    Parameter PORCUPINE 2 QIANFAN-95
    Semimajor Axis (a) 7501.324 km 7446.595 km
    Eccentricity (e) 0.007159 0.000182
    Inclination (i) 90.0424° 89.0098°
    RAAN 212.5382° 29.9528°
    Perigee Argument 107.1624° 115.4746°
    Mean Anomaly (M) 53.8450° 244.6593°
    Apogee 1176.889 km 1069.813 km
    Perigee 1069.485 km 1067.103 km
    Orbit Epoch 2026-10-21T07:04:04+0000 2026-10-21T04:47:01+0000

    PORCUPINE 2 & QIANFAN-95 Collision Probability (Pc) Trend

    PORCUPINE 2 & QIANFAN-95 Collision Probability (Pc) TrendNot Available

    PORCUPINE 2 & QIANFAN-95 Miss Distance (Miss Distance) Trend

    PORCUPINE 2 & QIANFAN-95 Miss Distance (Miss Distance) TrendNot Available

    PORCUPINE 2Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-95Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    PORCUPINE 2Collision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-95Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with PORCUPINE 2

    No nearby objects data