Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    9.454256E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T12:54:27+0800
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    1 Object 1

    AOE ID 11585
    NORAD ID 11585
    Object Type PAYLOAD
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 20508
    NORAD ID 20508
    Object Type PAYLOAD
    Country
    CIS CIS

    Conjunction Constraints

    Parameter COSMOS 1141 NADEZHDA 2
    Time of Closest Approach 2026-10-29T05:10:28+0000
    Collision Probability (Pc) 9.454256E-6
    Conjunction Distance (km) 1.308 km
    Relative Speed (km/s) 12.463 km/s
    Conjunction Risk Parameters R (Radial): 1.139 | I (In-track): -0.352 | C (Cross-track): -0.539
    Collision Risk Index (CRI) 0.55
    X Position (km) -918.896 -919.296
    Position Y (km) 1402.894 1402.33
    Position Z (km) 7133.21 7132.101
    Velocity X (km/s) 0.008 -6.643
    Velocity Y (km/s) -7.246 2.91
    Velocity Z (km/s) 1.409 -1.406

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 1141 NADEZHDA 2
    Semimajor Axis (a) 7351.945 km 7361.356 km
    Eccentricity (e) 0.003038 0.004535
    Inclination (i) 82.9457° 82.9564°
    RAAN 92.4106° 335.9839°
    Perigee Argument 122.8713° 70.5727°
    Mean Anomaly (M) 350.7596° 101.9765°
    Apogee 996.141 km 1016.600 km
    Perigee 951.475 km 949.838 km
    Orbit Epoch 2026-10-27T21:57:24+0000 2026-10-27T20:19:46+0000

    COSMOS 1141 & NADEZHDA 2 Collision Probability (Pc) Trend

    COSMOS 1141 & NADEZHDA 2 Collision Probability (Pc) TrendNot Available

    COSMOS 1141 & NADEZHDA 2 Miss Distance (Miss Distance) Trend

    COSMOS 1141 & NADEZHDA 2 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 1141Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    NADEZHDA 2Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 1141Collision Probability Trend

    Object 1 Probability TrendNot Available

    NADEZHDA 2Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 1141

    No nearby objects data