Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    7.430759E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-10T05:48:53+0800
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    1 Object 1

    AOE ID 35996
    NORAD ID 35996
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 57974
    NORAD ID 57974
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB STARLINK-30489
    Time of Closest Approach 2026-09-10T04:03:49+0000
    Collision Probability (Pc) 7.430759E-6
    Conjunction Distance (km) 1.371 km
    Relative Speed (km/s) 11.107 km/s
    Conjunction Risk Parameters R (Radial): 0.991 | I (In-track): -0.647 | C (Cross-track): -0.691
    Collision Risk Index (CRI) 0.52
    X Position (km) -2030.737 -2029.72
    Position Y (km) -5087.215 -5087.013
    Position Z (km) -4136.452 -4135.556
    Velocity X (km/s) 0.834 7.167
    Velocity Y (km/s) -5.02 -0.883
    Velocity Z (km/s) 5.7 -2.432

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB STARLINK-30489
    Semimajor Axis (a) 6902.026 km 6861.190 km
    Eccentricity (e) 0.008417 0.000206
    Inclination (i) 74.0200° 43.0032°
    RAAN 264.4301° 18.4445°
    Perigee Argument 284.4412° 255.8317°
    Mean Anomaly (M) 74.7452° 104.2306°
    Apogee 581.981 km 484.468 km
    Perigee 465.797 km 481.638 km
    Orbit Epoch 2026-09-08T09:24:58+0000 2026-09-09T09:44:48+0000

    COSMOS 2251 DEB & STARLINK-30489 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & STARLINK-30489 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & STARLINK-30489 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & STARLINK-30489 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30489Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30489Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data