Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    5.997782E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T06:49:49+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 34540
    NORAD ID 34540
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    Name ALOS 2
    AOE ID 39766
    NORAD ID 39766
    Object Type PAYLOAD
    Country
    JP JP

    Conjunction Constraints

    Parameter IRIDIUM 33 DEB ALOS 2
    Time of Closest Approach 2026-09-16T04:44:03+0000
    Collision Probability (Pc) 5.997782E-6
    Conjunction Distance (km) 1.558 km
    Relative Speed (km/s) 15.061 km/s
    Conjunction Risk Parameters R (Radial): 1.457 | I (In-track): 0.037 | C (Cross-track): -0.55
    Collision Risk Index (CRI) 0.51
    X Position (km) -4496.603 -4495.687
    Position Y (km) -359.799 -360.273
    Position Z (km) 5359.519 5358.352
    Velocity X (km/s) 5.783 -5.755
    Velocity Y (km/s) -0.293 1.159
    Velocity Z (km/s) 4.831 -4.739

    Orbital Parameters 国际轨道数据源

    Parameter IRIDIUM 33 DEB ALOS 2
    Semimajor Axis (a) 7005.948 km 7009.141 km
    Eccentricity (e) 0.001203 0.000146
    Inclination (i) 86.3141° 97.9230°
    RAAN 180.6090° 354.4341°
    Perigee Argument 296.6794° 94.6637°
    Mean Anomaly (M) 216.4389° 265.4741°
    Apogee 636.239 km 632.026 km
    Perigee 619.383 km 629.982 km
    Orbit Epoch 2026-09-15T06:29:20+0000 2026-09-15T13:32:35+0000

    IRIDIUM 33 DEB & ALOS 2 Collision Probability (Pc) Trend

    IRIDIUM 33 DEB & ALOS 2 Collision Probability (Pc) TrendNot Available

    IRIDIUM 33 DEB & ALOS 2 Miss Distance (Miss Distance) Trend

    IRIDIUM 33 DEB & ALOS 2 Miss Distance (Miss Distance) TrendNot Available

    IRIDIUM 33 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ALOS 2Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    IRIDIUM 33 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    ALOS 2Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with IRIDIUM 33 DEB

    No nearby objects data