Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.78699E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T10:19:52+0800
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    1 Object 1

    AOE ID 37316
    NORAD ID 37316
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 63345
    NORAD ID 63345
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter COSMOS 2251 DEB YUNYAO-1 44
    Time of Closest Approach 2026-09-03T07:44:01+0000
    Collision Probability (Pc) 1.78699E-6
    Conjunction Distance (km) 2.428 km
    Relative Speed (km/s) 13.928 km/s
    Conjunction Risk Parameters R (Radial): -2.427 | I (In-track): 0.005 | C (Cross-track): -0.032
    Collision Risk Index (CRI) 0.4
    X Position (km) -134.054 -134.073
    Position Y (km) 1970.342 1971.018
    Position Z (km) -6618.026 -6620.358
    Velocity X (km/s) -7.171 3.073
    Velocity Y (km/s) -2.425 6.67
    Velocity Z (km/s) -0.594 1.917

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB YUNYAO-1 44
    Semimajor Axis (a) 6911.553 km 6909.981 km
    Eccentricity (e) 0.002775 0.001525
    Inclination (i) 74.0107° 97.6130°
    RAAN 202.9471° 66.5507°
    Perigee Argument 216.9963° 250.6047°
    Mean Anomaly (M) 142.9317° 109.3535°
    Apogee 552.595 km 542.386 km
    Perigee 514.237 km 521.302 km
    Orbit Epoch 2026-09-01T21:11:31+0000 2026-09-02T14:35:16+0000

    COSMOS 2251 DEB & YUNYAO-1 44 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & YUNYAO-1 44 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & YUNYAO-1 44 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & YUNYAO-1 44 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YUNYAO-1 44Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    YUNYAO-1 44Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data