Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.141441E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T00:22:41+0800
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    1 Object 1

    AOE ID 21723
    NORAD ID 21723
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 58210
    NORAD ID 58210
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 397 DEB STARLINK-30846
    Time of Closest Approach 2026-10-21T19:10:59+0000
    Collision Probability (Pc) 9.141441E-7
    Conjunction Distance (km) 2.226 km
    Relative Speed (km/s) 3.269 km/s
    Conjunction Risk Parameters R (Radial): -1.832 | I (In-track): 1.24 | C (Cross-track): -0.245
    Collision Risk Index (CRI) 0.34
    X Position (km) 6179.144 6176.952
    Position Y (km) 2064.924 2064.992
    Position Z (km) 2148.365 2148.75
    Velocity X (km/s) -3.051 -3.313
    Velocity Y (km/s) 2.493 5.085
    Velocity Z (km/s) 6.593 4.62

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 397 DEB STARLINK-30846
    Semimajor Axis (a) 6963.059 km 6861.224 km
    Eccentricity (e) 0.017702 0.000121
    Inclination (i) 65.6627° 43.0015°
    RAAN 18.3953° 11.8175°
    Perigee Argument 347.2156° 285.9428°
    Mean Anomaly (M) 12.4503° 74.1291°
    Apogee 708.181 km 483.914 km
    Perigee 461.663 km 482.260 km
    Orbit Epoch 2026-10-18T23:37:47+0000 2026-10-19T07:25:52+0000

    COSMOS 397 DEB & STARLINK-30846 Collision Probability (Pc) Trend

    COSMOS 397 DEB & STARLINK-30846 Collision Probability (Pc) TrendNot Available

    COSMOS 397 DEB & STARLINK-30846 Miss Distance (Miss Distance) Trend

    COSMOS 397 DEB & STARLINK-30846 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 397 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30846Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 397 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30846Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 397 DEB

    No nearby objects data