Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.098985E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T09:01:21+0800
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    1 Object 1

    AOE ID 59581
    NORAD ID 59581
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 67677
    NORAD ID 67677
    Object Type PAYLOAD
    Country
    CIS CIS

    Conjunction Constraints

    Parameter STARLINK-31690 COSMOS 2603
    Time of Closest Approach 2026-09-05T01:09:37+0000
    Collision Probability (Pc) 1.098985E-5
    Conjunction Distance (km) 1.273 km
    Relative Speed (km/s) 13.501 km/s
    Conjunction Risk Parameters R (Radial): 1.122 | I (In-track): 0.29 | C (Cross-track): -0.525
    Collision Risk Index (CRI) 0.56
    X Position (km) -3232.819 -3233.864
    Position Y (km) 4569.389 4570.013
    Position Z (km) 3959.619 3959.988
    Velocity X (km/s) -4.447 -1.639
    Velocity Y (km/s) -5.547 4.182
    Velocity Z (km/s) 2.764 -6.165

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31690 COSMOS 2603
    Semimajor Axis (a) 6861.200 km 6865.427 km
    Eccentricity (e) 0.000133 0.001548
    Inclination (i) 43.0040° 96.6240°
    RAAN 78.5458° 299.2668°
    Perigee Argument 272.1405° 207.2434°
    Mean Anomaly (M) 87.9295° 152.7996°
    Apogee 483.974 km 497.922 km
    Perigee 482.152 km 476.658 km
    Orbit Epoch 2026-09-04T13:55:24+0000 2026-09-03T13:54:35+0000

    STARLINK-31690 & COSMOS 2603 Collision Probability (Pc) Trend

    STARLINK-31690 & COSMOS 2603 Collision Probability (Pc) TrendNot Available

    STARLINK-31690 & COSMOS 2603 Miss Distance (Miss Distance) Trend

    STARLINK-31690 & COSMOS 2603 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31690Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    COSMOS 2603Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-31690Collision Probability Trend

    Object 1 Probability TrendNot Available

    COSMOS 2603Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31690

    No nearby objects data