Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.456465E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T11:51:13+0800
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    1 Object 1

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

    2 Object 2

    Name TROLL
    AOE ID 62658
    NORAD ID 62658
    Object Type PAYLOAD
    Country
    CZ CZ

    Conjunction Constraints

    Parameter COSMOS 397 DEB TROLL
    Time of Closest Approach 2026-09-07T08:10:06+0000
    Collision Probability (Pc) 1.456465E-6
    Conjunction Distance (km) 2.837 km
    Relative Speed (km/s) 15.13 km/s
    Conjunction Risk Parameters R (Radial): 1.809 | I (In-track): -0.342 | C (Cross-track): 2.159
    Collision Risk Index (CRI) 0.38
    X Position (km) -5728.075 -5728.476
    Position Y (km) 2679.497 2681.986
    Position Z (km) 2625.37 2626.67
    Velocity X (km/s) 0.917 -2.185
    Velocity Y (km/s) -4.22 2.195
    Velocity Z (km/s) 6.372 -6.974

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 397 DEB TROLL
    Semimajor Axis (a) 6967.168 km 6849.779 km
    Eccentricity (e) 0.017572 0.000282
    Inclination (i) 65.6618° 97.3844°
    RAAN 151.9871° 328.2818°
    Perigee Argument 11.8788° 94.2233°
    Mean Anomaly (M) 348.6394° 265.9330°
    Apogee 711.457 km 473.571 km
    Perigee 466.605 km 469.713 km
    Orbit Epoch 2026-09-04T17:21:30+0000 2026-09-03T18:48:09+0000

    COSMOS 397 DEB & TROLL Collision Probability (Pc) Trend

    COSMOS 397 DEB & TROLL Collision Probability (Pc) TrendNot Available

    COSMOS 397 DEB & TROLL Miss Distance (Miss Distance) Trend

    COSMOS 397 DEB & TROLL Miss Distance (Miss Distance) TrendNot Available

    COSMOS 397 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TROLLMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 397 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    TROLLCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 397 DEB

    No nearby objects data