Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.092773E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-17T20:31:37+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 35835
    NORAD ID 35835
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 63604
    NORAD ID 63604
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter COSMOS 2251 DEB SHIYAN 27F
    Time of Closest Approach 2026-10-18T18:12:02+0000
    Collision Probability (Pc) 2.092773E-6
    Conjunction Distance (km) 2.274 km
    Relative Speed (km/s) 14.535 km/s
    Conjunction Risk Parameters R (Radial): 1.818 | I (In-track): 0.161 | C (Cross-track): -1.355
    Collision Risk Index (CRI) 0.41
    X Position (km) -2762.287 -2764.194
    Position Y (km) 3086.849 3087.091
    Position Z (km) 6151.342 6152.555
    Velocity X (km/s) 0.912 -2.223
    Velocity Y (km/s) -6.389 5.796
    Velocity Z (km/s) 3.378 -3.898

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB SHIYAN 27F
    Semimajor Axis (a) 7328.954 km 7423.835 km
    Eccentricity (e) 0.029194 0.000090
    Inclination (i) 74.0599° 99.6946°
    RAAN 110.0186° 295.7345°
    Perigee Argument 180.6366° 86.5017°
    Mean Anomaly (M) 179.4433° 273.6224°
    Apogee 1164.781 km 1046.367 km
    Perigee 736.853 km 1045.029 km
    Orbit Epoch 2026-10-16T19:02:59+0000 2026-10-17T07:59:02+0000

    COSMOS 2251 DEB & SHIYAN 27F Collision Probability (Pc) Trend

    COSMOS 2251 DEB & SHIYAN 27F Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & SHIYAN 27F Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & SHIYAN 27F Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SHIYAN 27FMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    SHIYAN 27FCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data