Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.400246E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-18T03:02:10+0800
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    1 Object 1

    AOE ID 33821
    NORAD ID 33821
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    Name THEA
    AOE ID 43796
    NORAD ID 43796
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB THEA
    Time of Closest Approach 2026-10-17T21:40:03+0000
    Collision Probability (Pc) 1.400246E-6
    Conjunction Distance (km) 2.918 km
    Relative Speed (km/s) 15.067 km/s
    Conjunction Risk Parameters R (Radial): 2.439 | I (In-track): -0.258 | C (Cross-track): 1.581
    Collision Risk Index (CRI) 0.38
    X Position (km) -3432.323 -3433.813
    Position Y (km) 642.013 643.788
    Position Z (km) -5868.639 -5870.411
    Velocity X (km/s) -6.187 6.59
    Velocity Y (km/s) -3.019 0.729
    Velocity Z (km/s) 3.272 -3.78

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB THEA
    Semimajor Axis (a) 6804.277 km 6827.308 km
    Eccentricity (e) 0.003311 0.000648
    Inclination (i) 74.0217° 97.4314°
    RAAN 199.8641° 1.2816°
    Perigee Argument 154.9455° 195.9009°
    Mean Anomaly (M) 205.3373° 164.2034°
    Apogee 448.671 km 453.597 km
    Perigee 403.609 km 444.745 km
    Orbit Epoch 2026-10-17T03:18:57+0000 2026-10-17T03:27:45+0000

    COSMOS 2251 DEB & THEA Collision Probability (Pc) Trend

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

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

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

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    THEAMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    THEACollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data