Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    2.10338E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-18T00:37:51+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 28096
    NORAD ID 28096
    Object Type ROCKET BODY
    Country
    US US

    Conjunction Constraints

    Parameter PORCUPINE 2 ATLAS 2AS CENTAUR R/B
    Time of Closest Approach 2026-10-18T18:20:38+0000
    Collision Probability (Pc) 2.10338E-4
    Conjunction Distance (km) 0.476 km
    Relative Speed (km/s) 12.837 km/s
    Conjunction Risk Parameters R (Radial): 0.396 | I (In-track): 0.115 | C (Cross-track): 0.24
    Collision Risk Index (CRI) 0.81
    X Position (km) 3426.934 3426.904
    Position Y (km) 2179.946 2180.211
    Position Z (km) -6349.778 -6350.173
    Velocity X (km/s) -5.128 -0.285
    Velocity Y (km/s) -3.274 6.884
    Velocity Z (km/s) -3.945 2.229

    Orbital Parameters 国际轨道数据源

    Parameter PORCUPINE 2 ATLAS 2AS CENTAUR R/B
    Semimajor Axis (a) 7501.327 km 7483.402 km
    Eccentricity (e) 0.007140 0.006857
    Inclination (i) 90.0421° 63.6785°
    RAAN 212.5209° 88.0257°
    Perigee Argument 118.3096° 91.5407°
    Mean Anomaly (M) 34.5289° 269.3476°
    Apogee 1176.747 km 1156.578 km
    Perigee 1069.633 km 1053.952 km
    Orbit Epoch 2026-10-17T05:59:02+0000 2026-10-16T20:09:54+0000

    PORCUPINE 2 & ATLAS 2AS CENTAUR R/B Collision Probability (Pc) Trend

    PORCUPINE 2 & ATLAS 2AS CENTAUR R/B Collision Probability (Pc) TrendNot Available

    PORCUPINE 2 & ATLAS 2AS CENTAUR R/B Miss Distance (Miss Distance) Trend

    PORCUPINE 2 & ATLAS 2AS CENTAUR R/B Miss Distance (Miss Distance) TrendNot Available

    PORCUPINE 2Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ATLAS 2AS CENTAUR R/BMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    PORCUPINE 2Collision Probability Trend

    Object 1 Probability TrendNot Available

    ATLAS 2AS CENTAUR R/BCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with PORCUPINE 2

    No nearby objects data