Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.419652E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T20:22:12+0800
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    1 Object 1

    AOE ID 35505
    NORAD ID 35505
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 56471
    NORAD ID 56471
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 917 DEB STARLINK-5521
    Time of Closest Approach 2026-11-01T17:01:36+0000
    Collision Probability (Pc) 3.419652E-6
    Conjunction Distance (km) 1.585 km
    Relative Speed (km/s) 7.037 km/s
    Conjunction Risk Parameters R (Radial): 1.387 | I (In-track): -0.731 | C (Cross-track): -0.23
    Collision Risk Index (CRI) 0.46
    X Position (km) 670.032 669.51
    Position Y (km) -3370.905 -3371.959
    Position Z (km) 5924.053 5925.115
    Velocity X (km/s) 9.794 4.159
    Velocity Y (km/s) 1.719 5.748
    Velocity Z (km/s) 1.562 2.796

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 917 DEB STARLINK-5521
    Semimajor Axis (a) 26437.725 km 6855.226 km
    Eccentricity (e) 0.746597 0.000293
    Inclination (i) 59.9237° 70.0020°
    RAAN 195.6652° 249.9565°
    Perigee Argument 68.3518° 266.8016°
    Mean Anomaly (M) 351.7990° 166.7884°
    Apogee 39797.907 km 479.099 km
    Perigee 321.269 km 475.079 km
    Orbit Epoch 2026-10-29T17:23:38+0000 2026-10-29T20:00:02+0000

    COSMOS 917 DEB & STARLINK-5521 Collision Probability (Pc) Trend

    COSMOS 917 DEB & STARLINK-5521 Collision Probability (Pc) TrendNot Available

    COSMOS 917 DEB & STARLINK-5521 Miss Distance (Miss Distance) Trend

    COSMOS 917 DEB & STARLINK-5521 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 917 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5521Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 917 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5521Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 917 DEB

    No nearby objects data