Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    8.215723E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T09:21:49+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 53670
    NORAD ID 53670
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB STARLINK-4459
    Time of Closest Approach 2026-10-20T23:30:46+0000
    Collision Probability (Pc) 8.215723E-6
    Conjunction Distance (km) 1.371 km
    Relative Speed (km/s) 12.807 km/s
    Conjunction Risk Parameters R (Radial): -1.337 | I (In-track): 0.162 | C (Cross-track): -0.248
    Collision Risk Index (CRI) 0.53
    X Position (km) -1545.277 -1545.693
    Position Y (km) 1118.399 1118.882
    Position Z (km) 6562.43 6563.643
    Velocity X (km/s) -4.13 7.325
    Velocity Y (km/s) -6.465 -1.019
    Velocity Z (km/s) 0.127 1.895

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB STARLINK-4459
    Semimajor Axis (a) 6910.210 km 6843.693 km
    Eccentricity (e) 0.009934 0.000188
    Inclination (i) 73.8330° 97.2848°
    RAAN 63.6933° 167.5555°
    Perigee Argument 97.3560° 87.9941°
    Mean Anomaly (M) 263.8934° 272.1516°
    Apogee 600.717 km 466.840 km
    Perigee 463.429 km 464.272 km
    Orbit Epoch 2026-10-18T02:48:52+0000 2026-10-18T06:58:26+0000

    COSMOS 2251 DEB & STARLINK-4459 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & STARLINK-4459 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & STARLINK-4459 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & STARLINK-4459 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4459Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4459Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data