Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.376667E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T13:16:58+0800
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    1 Object 1

    AOE ID 36441
    NORAD ID 36441
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 56359
    NORAD ID 56359
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB STARLINK-5551
    Time of Closest Approach 2026-10-21T01:05:14+0000
    Collision Probability (Pc) 2.376667E-6
    Conjunction Distance (km) 2.122 km
    Relative Speed (km/s) 13.904 km/s
    Conjunction Risk Parameters R (Radial): 1.399 | I (In-track): 0.663 | C (Cross-track): -1.451
    Collision Risk Index (CRI) 0.43
    X Position (km) -1329.255 -1331.069
    Position Y (km) 1448.577 1449.071
    Position Z (km) 6545.396 6546.379
    Velocity X (km/s) -4.237 -1.962
    Velocity Y (km/s) -6.374 7.111
    Velocity Z (km/s) 0.542 -1.968

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB STARLINK-5551
    Semimajor Axis (a) 6910.210 km 6843.705 km
    Eccentricity (e) 0.009934 0.000156
    Inclination (i) 73.8330° 97.2859°
    RAAN 63.6933° 285.1061°
    Perigee Argument 97.3560° 94.0773°
    Mean Anomaly (M) 263.8934° 266.0648°
    Apogee 600.717 km 466.637 km
    Perigee 463.429 km 464.499 km
    Orbit Epoch 2026-10-18T02:48:52+0000 2026-10-18T17:48:59+0000

    COSMOS 2251 DEB & STARLINK-5551 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & STARLINK-5551 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & STARLINK-5551 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & STARLINK-5551 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5551Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5551Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data