Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    4.733999E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-02T13:17:25+0800
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    1 Object 1

    AOE ID 3757
    NORAD ID 3757
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 69553
    NORAD ID 69553
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 249 DEB STARLINK-37859
    Time of Closest Approach 2026-09-02T06:49:43+0000
    Collision Probability (Pc) 4.733999E-6
    Conjunction Distance (km) 1.459 km
    Relative Speed (km/s) 7.75 km/s
    Conjunction Risk Parameters R (Radial): -1.1 | I (In-track): -0.826 | C (Cross-track): 0.484
    Collision Risk Index (CRI) 0.49
    X Position (km) -918.413 -917.818
    Position Y (km) 4178.266 4176.966
    Position Z (km) 5336.173 5335.883
    Velocity X (km/s) -6.554 0.259
    Velocity Y (km/s) 2.632 6.036
    Velocity Z (km/s) -3.232 -4.669

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 249 DEB STARLINK-37859
    Semimajor Axis (a) 7093.545 km 6843.692 km
    Eccentricity (e) 0.035354 0.000127
    Inclination (i) 61.9739° 97.2832°
    RAAN 326.1062° 272.5448°
    Perigee Argument 126.1091° 101.9610°
    Mean Anomaly (M) 237.3258° 258.1775°
    Apogee 966.192 km 466.425 km
    Perigee 464.624 km 464.685 km
    Orbit Epoch 2026-09-01T15:26:17+0000 2026-09-01T14:36:40+0000

    COSMOS 249 DEB & STARLINK-37859 Collision Probability (Pc) Trend

    COSMOS 249 DEB & STARLINK-37859 Collision Probability (Pc) TrendNot Available

    COSMOS 249 DEB & STARLINK-37859 Miss Distance (Miss Distance) Trend

    COSMOS 249 DEB & STARLINK-37859 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 249 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37859Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 249 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37859Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 249 DEB

    No nearby objects data