Conjunction Event Detail

    High Risk
    High collision probability. Maneuver recommended for primary asset.
    3.575242E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T16:27:46+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 20774
    NORAD ID 20774
    Object Type PAYLOAD
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 55332
    NORAD ID 55332
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2098 STARLINK-5491
    Time of Closest Approach 2026-09-05T14:25:10+0000
    Collision Probability (Pc) 3.575242E-4
    Conjunction Distance (km) 0.292 km
    Relative Speed (km/s) 6.026 km/s
    Conjunction Risk Parameters R (Radial): -0.251 | I (In-track): 0.134 | C (Cross-track): 0.061
    Collision Risk Index (CRI) 0.86
    X Position (km) 5773.569 5773.857
    Position Y (km) 2364.198 2364.239
    Position Z (km) 2846.18 2846.168
    Velocity X (km/s) -3.119 -4.071
    Velocity Y (km/s) -0.132 4.958
    Velocity Z (km/s) 7.209 4.127

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2098 STARLINK-5491
    Semimajor Axis (a) 7304.598 km 6861.198 km
    Eccentricity (e) 0.074174 0.000133
    Inclination (i) 82.9410° 43.0053°
    RAAN 20.1378° 5.5618°
    Perigee Argument 351.9953° 270.1131°
    Mean Anomaly (M) 6.9873° 89.9568°
    Apogee 1468.271 km 483.973 km
    Perigee 384.651 km 482.149 km
    Orbit Epoch 2026-09-04T03:46:56+0000 2026-09-03T08:54:03+0000

    COSMOS 2098 & STARLINK-5491 Collision Probability (Pc) Trend

    COSMOS 2098 & STARLINK-5491 Collision Probability (Pc) TrendNot Available

    COSMOS 2098 & STARLINK-5491 Miss Distance (Miss Distance) Trend

    COSMOS 2098 & STARLINK-5491 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2098Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5491Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2098Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5491Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2098

    No nearby objects data