Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    4.737168E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T05:38:24+0800
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    1 Object 1

    AOE ID 24796
    NORAD ID 24796
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 39646
    NORAD ID 39646
    Object Type DEBRIS
    Country
    CIS CIS

    Conjunction Constraints

    Parameter IRIDIUM 4 COSMOS 1867 COOLANT
    Time of Closest Approach 2026-09-12T08:08:49+0000
    Collision Probability (Pc) 4.737168E-6
    Conjunction Distance (km) 1.647 km
    Relative Speed (km/s) 13.736 km/s
    Conjunction Risk Parameters R (Radial): -1.598 | I (In-track): -0.148 | C (Cross-track): 0.366
    Collision Risk Index (CRI) 0.49
    X Position (km) 4367.474 4366.287
    Position Y (km) -1617.36 -1617.324
    Position Z (km) -5430.549 -5429.409
    Velocity X (km/s) 5.532 -2.364
    Velocity Y (km/s) -1.282 6.043
    Velocity Z (km/s) 4.835 -3.691

    Orbital Parameters 国际轨道数据源

    Parameter IRIDIUM 4 COSMOS 1867 COOLANT
    Semimajor Axis (a) 7145.908 km 7157.011 km
    Eccentricity (e) 0.000237 0.001911
    Inclination (i) 86.4011° 65.0086°
    RAAN 344.6432° 132.5403°
    Perigee Argument 94.3797° 278.3906°
    Mean Anomaly (M) 265.7672° 81.5013°
    Apogee 769.468 km 792.552 km
    Perigee 766.074 km 765.196 km
    Orbit Epoch 2026-09-10T12:55:54+0000 2026-09-10T06:30:03+0000

    IRIDIUM 4 & COSMOS 1867 COOLANT Collision Probability (Pc) Trend

    IRIDIUM 4 & COSMOS 1867 COOLANT Collision Probability (Pc) TrendNot Available

    IRIDIUM 4 & COSMOS 1867 COOLANT Miss Distance (Miss Distance) Trend

    IRIDIUM 4 & COSMOS 1867 COOLANT Miss Distance (Miss Distance) TrendNot Available

    IRIDIUM 4Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    COSMOS 1867 COOLANTMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    IRIDIUM 4Collision Probability Trend

    Object 1 Probability TrendNot Available

    COSMOS 1867 COOLANTCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with IRIDIUM 4

    No nearby objects data