Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.194037E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T06:32:57+0800
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    1 Object 1

    AOE ID 33948
    NORAD ID 33948
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 43257
    NORAD ID 43257
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB IRIDIUM 150
    Time of Closest Approach 2026-09-17T05:19:31+0000
    Collision Probability (Pc) 1.194037E-6
    Conjunction Distance (km) 2.885 km
    Relative Speed (km/s) 11.121 km/s
    Conjunction Risk Parameters R (Radial): -2.579 | I (In-track): 0.862 | C (Cross-track): 0.961
    Collision Risk Index (CRI) 0.37
    X Position (km) 219.44 220.701
    Position Y (km) 2074.11 2075.341
    Position Z (km) -6851.789 -6854.073
    Velocity X (km/s) -6.754 -2.337
    Velocity Y (km/s) 3.063 -6.747
    Velocity Z (km/s) 0.694 -2.119

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB IRIDIUM 150
    Semimajor Axis (a) 7150.309 km 7155.805 km
    Eccentricity (e) 0.002337 0.000222
    Inclination (i) 74.0361° 86.3909°
    RAAN 158.6459° 252.7177°
    Perigee Argument 173.5580° 87.3633°
    Mean Anomaly (M) 186.5878° 272.7817°
    Apogee 788.884 km 779.259 km
    Perigee 755.460 km 776.077 km
    Orbit Epoch 2026-09-14T17:31:20+0000 2026-09-15T10:17:11+0000

    COSMOS 2251 DEB & IRIDIUM 150 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & IRIDIUM 150 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & IRIDIUM 150 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & IRIDIUM 150 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 150Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 150Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data