Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.724524E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-14T12:38:31+0800
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    1 Object 1

    AOE ID 34635
    NORAD ID 34635
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 40286
    NORAD ID 40286
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter COSMOS 2251 DEB SJ-11-08
    Time of Closest Approach 2026-09-16T07:18:36+0000
    Collision Probability (Pc) 1.724524E-6
    Conjunction Distance (km) 2.514 km
    Relative Speed (km/s) 14.599 km/s
    Conjunction Risk Parameters R (Radial): -1.438 | I (In-track): -0.494 | C (Cross-track): 2.001
    Collision Risk Index (CRI) 0.4
    X Position (km) 2271.411 2270.146
    Position Y (km) 938.446 939.666
    Position Z (km) 6604.504 6606.301
    Velocity X (km/s) 1.733 -4.713
    Velocity Y (km/s) 7.125 -5.348
    Velocity Z (km/s) -1.618 2.383

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB SJ-11-08
    Semimajor Axis (a) 7034.722 km 7051.183 km
    Eccentricity (e) 0.003214 0.001125
    Inclination (i) 74.0410° 98.3647°
    RAAN 258.4041° 43.2743°
    Perigee Argument 258.4529° 319.0182°
    Mean Anomaly (M) 167.5060° 41.0174°
    Apogee 679.197 km 680.978 km
    Perigee 633.973 km 665.114 km
    Orbit Epoch 2026-09-13T08:58:35+0000 2026-09-13T20:01:32+0000

    COSMOS 2251 DEB & SJ-11-08 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & SJ-11-08 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & SJ-11-08 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & SJ-11-08 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SJ-11-08Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    SJ-11-08Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data