Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    5.749121E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T23:42:40+0800
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    1 Object 1

    AOE ID 36369
    NORAD ID 36369
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    Name PNEO4
    AOE ID 49070
    NORAD ID 49070
    Object Type PAYLOAD
    Country
    FR FR

    Conjunction Constraints

    Parameter COSMOS 2251 DEB PNEO4
    Time of Closest Approach 2026-10-21T08:39:50+0000
    Collision Probability (Pc) 5.749121E-6
    Conjunction Distance (km) 1.577 km
    Relative Speed (km/s) 14.987 km/s
    Conjunction Risk Parameters R (Radial): -0.77 | I (In-track): -0.145 | C (Cross-track): -1.368
    Collision Risk Index (CRI) 0.5
    X Position (km) 4557.12 4556.681
    Position Y (km) 1308.415 1306.926
    Position Z (km) -5164.034 -5163.753
    Velocity X (km/s) -5.716 5.644
    Velocity Y (km/s) 1.55 0.027
    Velocity Z (km/s) -4.664 4.991

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB PNEO4
    Semimajor Axis (a) 7010.736 km 7002.192 km
    Eccentricity (e) 0.001370 0.000130
    Inclination (i) 74.0282° 97.8949°
    RAAN 180.5884° 6.2537°
    Perigee Argument 187.1383° 92.2120°
    Mean Anomaly (M) 172.9600° 267.9242°
    Apogee 642.203 km 624.967 km
    Perigee 622.995 km 623.143 km
    Orbit Epoch 2026-10-19T23:09:35+0000 2026-10-20T06:56:53+0000

    COSMOS 2251 DEB & PNEO4 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & PNEO4 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & PNEO4 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & PNEO4 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    PNEO4Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    PNEO4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data