Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    6.88414E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-08T03:13:53+0800
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    1 Object 1

    AOE ID 14973
    NORAD ID 14973
    Object Type PAYLOAD
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 17359
    NORAD ID 17359
    Object Type PAYLOAD
    Country
    CIS CIS

    Conjunction Constraints

    Parameter COSMOS 1553 COSMOS 1816
    Time of Closest Approach 2026-10-07T22:53:29+0000
    Collision Probability (Pc) 6.88414E-6
    Conjunction Distance (km) 1.457 km
    Relative Speed (km/s) 13.373 km/s
    Conjunction Risk Parameters R (Radial): -0.431 | I (In-track): -0.58 | C (Cross-track): 1.265
    Collision Risk Index (CRI) 0.52
    X Position (km) -1757.702 -1756.797
    Position Y (km) 1245.857 1246.922
    Position Z (km) -7022.836 -7022.423
    Velocity X (km/s) -6.999 3.419
    Velocity Y (km/s) 1.175 -6.226
    Velocity Z (km/s) 1.975 -1.961

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 1553 COSMOS 1816
    Semimajor Axis (a) 7357.562 km 7361.070 km
    Eccentricity (e) 0.003146 0.003117
    Inclination (i) 82.9390° 82.9206°
    RAAN 169.1117° 301.3062°
    Perigee Argument 322.7993° 256.6743°
    Mean Anomaly (M) 201.7935° 175.8448°
    Apogee 1002.570 km 1005.877 km
    Perigee 956.280 km 959.989 km
    Orbit Epoch 2026-10-07T03:06:06+0000 2026-10-07T04:32:24+0000

    COSMOS 1553 & COSMOS 1816 Collision Probability (Pc) Trend

    COSMOS 1553 & COSMOS 1816 Collision Probability (Pc) TrendNot Available

    COSMOS 1553 & COSMOS 1816 Miss Distance (Miss Distance) Trend

    COSMOS 1553 & COSMOS 1816 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 1553Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    COSMOS 1816Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 1553Collision Probability Trend

    Object 1 Probability TrendNot Available

    COSMOS 1816Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 1553

    No nearby objects data