Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    7.060838E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T12:29:11+0800
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    1 Object 1

    AOE ID 33862
    NORAD ID 33862
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 39161
    NORAD ID 39161
    Object Type PAYLOAD
    Country
    EE EE

    Conjunction Constraints

    Parameter IRIDIUM 33 DEB ESTCUBE 1
    Time of Closest Approach 2026-09-13T20:30:07+0000
    Collision Probability (Pc) 7.060838E-6
    Conjunction Distance (km) 1.157 km
    Relative Speed (km/s) 4.417 km/s
    Conjunction Risk Parameters R (Radial): -1.117 | I (In-track): -0.283 | C (Cross-track): 0.093
    Collision Risk Index (CRI) 0.52
    X Position (km) -643.258 -643.267
    Position Y (km) 2284.884 2284.777
    Position Z (km) -6603.72 -6602.569
    Velocity X (km/s) 0.54 4.639
    Velocity Y (km/s) -7.076 -5.443
    Velocity Z (km/s) -2.535 -2.338

    Orbital Parameters 国际轨道数据源

    Parameter IRIDIUM 33 DEB ESTCUBE 1
    Semimajor Axis (a) 7026.360 km 7002.396 km
    Eccentricity (e) 0.004745 0.000969
    Inclination (i) 86.4046° 97.7211°
    RAAN 276.5609° 305.2472°
    Perigee Argument 196.7305° 94.4651°
    Mean Anomaly (M) 337.6339° 265.7670°
    Apogee 681.566 km 631.046 km
    Perigee 614.880 km 617.472 km
    Orbit Epoch 2026-09-11T19:16:56+0000 2026-09-11T02:32:09+0000

    IRIDIUM 33 DEB & ESTCUBE 1 Collision Probability (Pc) Trend

    IRIDIUM 33 DEB & ESTCUBE 1 Collision Probability (Pc) TrendNot Available

    IRIDIUM 33 DEB & ESTCUBE 1 Miss Distance (Miss Distance) Trend

    IRIDIUM 33 DEB & ESTCUBE 1 Miss Distance (Miss Distance) TrendNot Available

    IRIDIUM 33 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ESTCUBE 1Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    IRIDIUM 33 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    ESTCUBE 1Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with IRIDIUM 33 DEB

    No nearby objects data