Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.788744E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T13:43:02+0800
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    1 Object 1

    AOE ID 34271
    NORAD ID 34271
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    Name SPHEREX
    AOE ID 63182
    NORAD ID 63182
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB SPHEREX
    Time of Closest Approach 2026-10-22T07:49:29+0000
    Collision Probability (Pc) 4.788744E-6
    Conjunction Distance (km) 1.672 km
    Relative Speed (km/s) 14.988 km/s
    Conjunction Risk Parameters R (Radial): -1.102 | I (In-track): 0.139 | C (Cross-track): 1.249
    Collision Risk Index (CRI) 0.49
    X Position (km) -1743.936 -1744.713
    Position Y (km) 4758.63 4757.241
    Position Z (km) 4862.762 4862.25
    Velocity X (km/s) -4.355 3.124
    Velocity Y (km/s) 3.536 -4.32
    Velocity Z (km/s) -5.019 5.323

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB SPHEREX
    Semimajor Axis (a) 7015.055 km 7025.622 km
    Eccentricity (e) 0.002028 0.001100
    Inclination (i) 74.0190° 97.9583°
    RAAN 309.6697° 116.5139°
    Perigee Argument 291.7040° 143.7066°
    Mean Anomaly (M) 219.6950° 216.4891°
    Apogee 651.144 km 655.214 km
    Perigee 622.692 km 639.756 km
    Orbit Epoch 2026-10-20T12:01:51+0000 2026-10-20T23:02:45+0000

    COSMOS 2251 DEB & SPHEREX Collision Probability (Pc) Trend

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

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

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

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SPHEREXMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    SPHEREXCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data