Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.245213E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-23T17:47:08+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 10470
    NORAD ID 10470
    Object Type DEBRIS
    Country
    US US

    Conjunction Constraints

    Parameter PORCUPINE 2 DELTA 1 DEB
    Time of Closest Approach 2026-10-24T00:37:23+0000
    Collision Probability (Pc) 2.245213E-6
    Conjunction Distance (km) 1.96 km
    Relative Speed (km/s) 9.279 km/s
    Conjunction Risk Parameters R (Radial): -0.319 | I (In-track): -1.468 | C (Cross-track): 1.258
    Collision Risk Index (CRI) 0.42
    X Position (km) -5638.295 -5638.162
    Position Y (km) -3601.969 -3600.393
    Position Z (km) -3474.707 -3475.863
    Velocity X (km/s) -2.786 3.598
    Velocity Y (km/s) -1.773 -6.075
    Velocity Z (km/s) 6.459 1.279

    Orbital Parameters 国际轨道数据源

    Parameter PORCUPINE 2 DELTA 1 DEB
    Semimajor Axis (a) 7501.323 km 7343.835 km
    Eccentricity (e) 0.007164 0.058997
    Inclination (i) 90.0426° 29.0979°
    RAAN 212.5450° 288.9549°
    Perigee Argument 102.8842° 36.2678°
    Mean Anomaly (M) 329.2332° 327.6446°
    Apogee 1176.924 km 1398.961 km
    Perigee 1069.448 km 532.435 km
    Orbit Epoch 2026-10-22T20:21:46+0000 2026-10-22T15:57:35+0000

    PORCUPINE 2 & DELTA 1 DEB Collision Probability (Pc) Trend

    PORCUPINE 2 & DELTA 1 DEB Collision Probability (Pc) TrendNot Available

    PORCUPINE 2 & DELTA 1 DEB Miss Distance (Miss Distance) Trend

    PORCUPINE 2 & DELTA 1 DEB Miss Distance (Miss Distance) TrendNot Available

    PORCUPINE 2Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    PORCUPINE 2Collision Probability Trend

    Object 1 Probability TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with PORCUPINE 2

    No nearby objects data