Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    4.932725E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T08:00:53+0800
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    1 Object 1

    AOE ID 34968
    NORAD ID 34968
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 56728
    NORAD ID 56728
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB IRIDIUM 174
    Time of Closest Approach 2026-09-18T11:50:06+0000
    Collision Probability (Pc) 4.932725E-5
    Conjunction Distance (km) 0.812 km
    Relative Speed (km/s) 12.836 km/s
    Conjunction Risk Parameters R (Radial): -0.705 | I (In-track): -0.206 | C (Cross-track): -0.343
    Collision Risk Index (CRI) 0.69
    X Position (km) -1391.527 -1392.049
    Position Y (km) 1962.275 1962.366
    Position Z (km) 6598.089 6598.703
    Velocity X (km/s) -2.496 -5.095
    Velocity Y (km/s) -6.972 4.934
    Velocity Z (km/s) 1.494 -2.536

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB IRIDIUM 174
    Semimajor Axis (a) 7072.119 km 7032.002 km
    Eccentricity (e) 0.008569 0.000267
    Inclination (i) 74.0367° 86.6107°
    RAAN 79.9121° 315.9067°
    Perigee Argument 131.3540° 92.2190°
    Mean Anomaly (M) 229.5039° 267.9333°
    Apogee 754.586 km 655.746 km
    Perigee 633.378 km 651.984 km
    Orbit Epoch 2026-09-15T04:31:50+0000 2026-09-15T14:49:40+0000

    COSMOS 2251 DEB & IRIDIUM 174 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & IRIDIUM 174 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & IRIDIUM 174 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & IRIDIUM 174 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 174Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 174Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data