Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.377826E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T12:01:12+0800
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    1 Object 1

    AOE ID 35716
    NORAD ID 35716
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    Name NISAR
    AOE ID 65053
    NORAD ID 65053
    Object Type PAYLOAD
    Country
    IN IN

    Conjunction Constraints

    Parameter COSMOS 2251 DEB NISAR
    Time of Closest Approach 2026-10-30T14:56:45+0000
    Collision Probability (Pc) 1.377826E-6
    Conjunction Distance (km) 2.931 km
    Relative Speed (km/s) 14.799 km/s
    Conjunction Risk Parameters R (Radial): -2.476 | I (In-track): 0.187 | C (Cross-track): 1.557
    Collision Risk Index (CRI) 0.38
    X Position (km) -3298.567 -3298.694
    Position Y (km) 2691.027 2689.239
    Position Z (km) -5730.263 -5727.944
    Velocity X (km/s) 1.923 -3.346
    Velocity Y (km/s) -6.006 5.09
    Velocity Z (km/s) -3.935 4.319

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB NISAR
    Semimajor Axis (a) 7069.968 km 7128.375 km
    Eccentricity (e) 0.008783 0.000125
    Inclination (i) 73.9922° 98.4062°
    RAAN 300.6312° 127.9753°
    Perigee Argument 64.1998° 88.5967°
    Mean Anomaly (M) 309.7751° 271.5366°
    Apogee 753.924 km 751.132 km
    Perigee 629.738 km 749.344 km
    Orbit Epoch 2026-10-29T06:41:35+0000 2026-10-29T05:54:08+0000

    COSMOS 2251 DEB & NISAR Collision Probability (Pc) Trend

    COSMOS 2251 DEB & NISAR Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & NISAR Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & NISAR Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    NISARMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    NISARCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data