Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.639593E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T19:08:02+0800
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    1 Object 1

    AOE ID 34949
    NORAD ID 34949
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 37216
    NORAD ID 37216
    Object Type PAYLOAD
    Country
    IT IT

    Conjunction Constraints

    Parameter COSMOS 2251 DEB SKYMED 4
    Time of Closest Approach 2026-09-05T23:57:11+0000
    Collision Probability (Pc) 1.639593E-6
    Conjunction Distance (km) 2.514 km
    Relative Speed (km/s) 13.414 km/s
    Conjunction Risk Parameters R (Radial): 2.463 | I (In-track): -0.231 | C (Cross-track): 0.449
    Collision Risk Index (CRI) 0.39
    X Position (km) 1424.205 1423.218
    Position Y (km) 1311.426 1310.89
    Position Z (km) 6721.839 6719.59
    Velocity X (km/s) -4.576 -2.093
    Velocity Y (km/s) 6.013 -7.023
    Velocity Z (km/s) -0.147 1.81

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB SKYMED 4
    Semimajor Axis (a) 7022.539 km 7000.663 km
    Eccentricity (e) 0.007745 0.000139
    Inclination (i) 74.0177° 97.8919°
    RAAN 310.0380° 70.6318°
    Perigee Argument 26.2281° 83.9319°
    Mean Anomaly (M) 334.2782° 276.2053°
    Apogee 698.795 km 623.500 km
    Perigee 590.009 km 621.552 km
    Orbit Epoch 2026-09-04T10:06:43+0000 2026-09-05T04:10:08+0000

    COSMOS 2251 DEB & SKYMED 4 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & SKYMED 4 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & SKYMED 4 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & SKYMED 4 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SKYMED 4Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    SKYMED 4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data