Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.884936E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-15T14:14:19+0800
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    1 Object 1

    AOE ID 35717
    NORAD ID 35717
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 43572
    NORAD ID 43572
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB IRIDIUM 165
    Time of Closest Approach 2026-09-16T11:55:37+0000
    Collision Probability (Pc) 1.884936E-6
    Conjunction Distance (km) 1.915 km
    Relative Speed (km/s) 6.368 km/s
    Conjunction Risk Parameters R (Radial): 0.729 | I (In-track): -1.599 | C (Cross-track): 0.76
    Collision Risk Index (CRI) 0.41
    X Position (km) -2187.481 -2186.505
    Position Y (km) -286.221 -285.022
    Position Z (km) 6797.808 6798.939
    Velocity X (km/s) -2.405 -6.7
    Velocity Y (km/s) -6.969 -2.406
    Velocity Z (km/s) -1.12 -2.251

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB IRIDIUM 165
    Semimajor Axis (a) 7135.817 km 7155.806 km
    Eccentricity (e) 0.007511 0.000209
    Inclination (i) 74.1578° 86.4008°
    RAAN 71.7138° 19.4127°
    Perigee Argument 212.6786° 93.0836°
    Mean Anomaly (M) 146.9712° 267.0599°
    Apogee 811.278 km 779.165 km
    Perigee 704.082 km 776.173 km
    Orbit Epoch 2026-09-14T17:47:20+0000 2026-09-14T14:13:02+0000

    COSMOS 2251 DEB & IRIDIUM 165 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & IRIDIUM 165 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & IRIDIUM 165 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & IRIDIUM 165 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 165Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 165Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data