Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.276422E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T00:15:27+0800
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    1 Object 1

    AOE ID 34955
    NORAD ID 34955
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 55757
    NORAD ID 55757
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB STARLINK-5544
    Time of Closest Approach 2026-09-14T00:19:34+0000
    Collision Probability (Pc) 1.276422E-6
    Conjunction Distance (km) 2.611 km
    Relative Speed (km/s) 9.751 km/s
    Conjunction Risk Parameters R (Radial): 0.09 | I (In-track): -1.997 | C (Cross-track): -1.678
    Collision Risk Index (CRI) 0.37
    X Position (km) 2824.165 2824.231
    Position Y (km) 211.723 214.324
    Position Z (km) -6352.316 -6352.101
    Velocity X (km/s) 4.667 -4.214
    Velocity Y (km/s) 5.468 6.054
    Velocity Z (km/s) 2.311 -1.67

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB STARLINK-5544
    Semimajor Axis (a) 6929.834 km 6950.194 km
    Eccentricity (e) 0.006983 0.000270
    Inclination (i) 74.0336° 69.9993°
    RAAN 51.0207° 136.9223°
    Perigee Argument 48.6721° 269.8175°
    Mean Anomaly (M) 312.0448° 90.2674°
    Apogee 600.089 km 573.935 km
    Perigee 503.305 km 570.179 km
    Orbit Epoch 2026-09-10T16:52:24+0000 2026-09-11T02:17:21+0000

    COSMOS 2251 DEB & STARLINK-5544 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & STARLINK-5544 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & STARLINK-5544 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & STARLINK-5544 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5544Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5544Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data