Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    2.022167E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T03:36:25+0800
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    1 Object 1

    AOE ID 40239
    NORAD ID 40239
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 58500
    NORAD ID 58500
    Object Type PAYLOAD
    Country
    KR KR

    Conjunction Constraints

    Parameter COSMOS 2251 DEB DOORY-SAT
    Time of Closest Approach 2026-10-31T22:57:08+0000
    Collision Probability (Pc) 2.022167E-5
    Conjunction Distance (km) 0.869 km
    Relative Speed (km/s) 4.918 km/s
    Conjunction Risk Parameters R (Radial): -0.641 | I (In-track): 0.553 | C (Cross-track): -0.195
    Collision Risk Index (CRI) 0.61
    X Position (km) 4956.647 4955.779
    Position Y (km) 2685.088 2685.042
    Position Z (km) 4150.24 4150.223
    Velocity X (km/s) -4.959 -5.136
    Velocity Y (km/s) 0.258 4.492
    Velocity Z (km/s) 5.726 3.23

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB DOORY-SAT
    Semimajor Axis (a) 7061.984 km 7004.622 km
    Eccentricity (e) 0.008417 0.000905
    Inclination (i) 74.0319° 46.9842°
    RAAN 21.9941° 359.6144°
    Perigee Argument 52.4738° 307.7704°
    Mean Anomaly (M) 121.5349° 52.2370°
    Apogee 743.291 km 632.827 km
    Perigee 624.403 km 620.143 km
    Orbit Epoch 2026-10-28T23:21:21+0000 2026-10-28T23:27:53+0000

    COSMOS 2251 DEB & DOORY-SAT Collision Probability (Pc) Trend

    COSMOS 2251 DEB & DOORY-SAT Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & DOORY-SAT Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & DOORY-SAT Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    DOORY-SATMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    DOORY-SATCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data