Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.682039E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-15T14:36:51+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 35606
    NORAD ID 35606
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 43250
    NORAD ID 43250
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB IRIDIUM 149
    Time of Closest Approach 2026-09-15T09:35:13+0000
    Collision Probability (Pc) 1.682039E-6
    Conjunction Distance (km) 1.889 km
    Relative Speed (km/s) 4.989 km/s
    Conjunction Risk Parameters R (Radial): -1.852 | I (In-track): 0.344 | C (Cross-track): 0.139
    Collision Risk Index (CRI) 0.4
    X Position (km) 1186.847 1187.2
    Position Y (km) 2393.37 2393.643
    Position Z (km) 6627.818 6629.654
    Velocity X (km/s) -2.994 1.907
    Velocity Y (km/s) 6.776 6.676
    Velocity Z (km/s) -1.825 -2.746

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB IRIDIUM 149
    Semimajor Axis (a) 7481.684 km 7155.807 km
    Eccentricity (e) 0.045063 0.000222
    Inclination (i) 73.8090° 86.3910°
    RAAN 292.7472° 252.8134°
    Perigee Argument 94.8282° 89.5758°
    Mean Anomaly (M) 270.4411° 270.5692°
    Apogee 1440.694 km 779.261 km
    Perigee 766.400 km 776.079 km
    Orbit Epoch 2026-09-13T12:21:23+0000 2026-09-14T23:01:19+0000

    COSMOS 2251 DEB & IRIDIUM 149 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & IRIDIUM 149 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & IRIDIUM 149 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & IRIDIUM 149 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 149Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 149Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data