Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.403841E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T05:18:18+0800
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    1 Object 1

    AOE ID 14401
    NORAD ID 14401
    Object Type PAYLOAD
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 43078
    NORAD ID 43078
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 1503 IRIDIUM 153
    Time of Closest Approach 2026-09-16T00:19:50+0000
    Collision Probability (Pc) 1.403841E-6
    Conjunction Distance (km) 2.228 km
    Relative Speed (km/s) 6.976 km/s
    Conjunction Risk Parameters R (Radial): 0.546 | I (In-track): 1.909 | C (Cross-track): -1.009
    Collision Risk Index (CRI) 0.38
    X Position (km) 1036.801 1036.438
    Position Y (km) 1849.983 1852.18
    Position Z (km) 6824.853 6824.884
    Velocity X (km/s) -4.73 2.021
    Velocity Y (km/s) 5.722 6.855
    Velocity Z (km/s) -0.823 -2.162

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 1503 IRIDIUM 153
    Semimajor Axis (a) 7159.379 km 7155.806 km
    Eccentricity (e) 0.001244 0.000243
    Inclination (i) 74.0442° 86.3910°
    RAAN 308.8159° 252.9256°
    Perigee Argument 44.2393° 88.6305°
    Mean Anomaly (M) 315.9750° 271.5170°
    Apogee 790.148 km 779.409 km
    Perigee 772.336 km 775.929 km
    Orbit Epoch 2026-09-15T10:28:48+0000 2026-09-14T22:43:03+0000

    COSMOS 1503 & IRIDIUM 153 Collision Probability (Pc) Trend

    COSMOS 1503 & IRIDIUM 153 Collision Probability (Pc) TrendNot Available

    COSMOS 1503 & IRIDIUM 153 Miss Distance (Miss Distance) Trend

    COSMOS 1503 & IRIDIUM 153 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 1503Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 153Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 1503Collision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 153Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 1503

    No nearby objects data