Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.164957E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T21:43:53+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 56725
    NORAD ID 56725
    Object Type PAYLOAD
    Country
    GB GB

    Conjunction Constraints

    Parameter PORCUPINE 2 ONEWEB-0721
    Time of Closest Approach 2026-10-27T14:28:48+0000
    Collision Probability (Pc) 3.164957E-6
    Conjunction Distance (km) 1.912 km
    Relative Speed (km/s) 14.411 km/s
    Conjunction Risk Parameters R (Radial): 1.908 | I (In-track): -0.003 | C (Cross-track): 0.128
    Collision Risk Index (CRI) 0.45
    X Position (km) 1889.046 1889.457
    Position Y (km) 1200.077 1200.489
    Position Z (km) -7221.301 -7223.123
    Velocity X (km/s) -5.813 4.972
    Velocity Y (km/s) -3.715 4.84
    Velocity Z (km/s) -2.155 2.106

    Orbital Parameters 国际轨道数据源

    Parameter PORCUPINE 2 ONEWEB-0721
    Semimajor Axis (a) 7501.322 km 7553.409 km
    Eccentricity (e) 0.007173 0.000168
    Inclination (i) 90.0429° 86.6809°
    RAAN 212.5639° 43.3375°
    Perigee Argument 90.8978° 102.3715°
    Mean Anomaly (M) 62.7596° 257.7606°
    Apogee 1176.992 km 1176.541 km
    Perigee 1069.378 km 1174.003 km
    Orbit Epoch 2026-10-27T05:00:04+0000 2026-10-27T05:46:13+0000

    PORCUPINE 2 & ONEWEB-0721 Collision Probability (Pc) Trend

    PORCUPINE 2 & ONEWEB-0721 Collision Probability (Pc) TrendNot Available

    PORCUPINE 2 & ONEWEB-0721 Miss Distance (Miss Distance) Trend

    PORCUPINE 2 & ONEWEB-0721 Miss Distance (Miss Distance) TrendNot Available

    PORCUPINE 2Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ONEWEB-0721Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    PORCUPINE 2Collision Probability Trend

    Object 1 Probability TrendNot Available

    ONEWEB-0721Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with PORCUPINE 2

    No nearby objects data