Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.349917E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T14:00:01+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 34641
    NORAD ID 34641
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 39084
    NORAD ID 39084
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB LANDSAT 8
    Time of Closest Approach 2026-10-29T09:00:17+0000
    Collision Probability (Pc) 1.349917E-6
    Conjunction Distance (km) 2.998 km
    Relative Speed (km/s) 14.976 km/s
    Conjunction Risk Parameters R (Radial): -1.552 | I (In-track): -0.171 | C (Cross-track): 2.558
    Collision Risk Index (CRI) 0.38
    X Position (km) -6801.423 -6800.368
    Position Y (km) -1492.971 -1490.178
    Position Z (km) 1299.994 1300.26
    Velocity X (km/s) 1.76 -1.574
    Velocity Y (km/s) -1.789 0.771
    Velocity Z (km/s) 7.076 -7.297

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB LANDSAT 8
    Semimajor Axis (a) 7091.468 km 7080.690 km
    Eccentricity (e) 0.001483 0.000134
    Inclination (i) 73.8372° 98.2168°
    RAAN 194.2579° 8.4112°
    Perigee Argument 48.5962° 91.3695°
    Mean Anomaly (M) 9.4394° 268.7657°
    Apogee 723.846 km 703.502 km
    Perigee 702.816 km 701.604 km
    Orbit Epoch 2026-10-26T18:27:41+0000 2026-10-26T22:32:53+0000

    COSMOS 2251 DEB & LANDSAT 8 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & LANDSAT 8 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & LANDSAT 8 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & LANDSAT 8 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    LANDSAT 8Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    LANDSAT 8Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data