Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.111098E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-06T01:20:10+0800
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    1 Object 1

    AOE ID 39491
    NORAD ID 39491
    Object Type PAYLOAD
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 57386
    NORAD ID 57386
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2494 (SKRL 756) STARLING 4
    Time of Closest Approach 2026-09-06T23:21:27+0000
    Collision Probability (Pc) 3.111098E-6
    Conjunction Distance (km) 1.876 km
    Relative Speed (km/s) 12.946 km/s
    Conjunction Risk Parameters R (Radial): -1.788 | I (In-track): -0.291 | C (Cross-track): -0.486
    Collision Risk Index (CRI) 0.45
    X Position (km) 966.088 965.965
    Position Y (km) 755.194 754.973
    Position Z (km) -6817.917 -6819.776
    Velocity X (km/s) -7.397 2.261
    Velocity Y (km/s) 1.397 -7.213
    Velocity Z (km/s) -0.888 -0.483

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2494 (SKRL 756) STARLING 4
    Semimajor Axis (a) 6928.796 km 6923.513 km
    Eccentricity (e) 0.001446 0.000594
    Inclination (i) 82.4146° 99.5071°
    RAAN 171.6884° 284.6861°
    Perigee Argument 296.6463° 206.1620°
    Mean Anomaly (M) 63.3282° 153.9302°
    Apogee 560.676 km 549.491 km
    Perigee 540.642 km 541.261 km
    Orbit Epoch 2026-09-05T11:05:32+0000 2026-09-05T06:20:29+0000

    COSMOS 2494 (SKRL 756) & STARLING 4 Collision Probability (Pc) Trend

    COSMOS 2494 (SKRL 756) & STARLING 4 Collision Probability (Pc) TrendNot Available

    COSMOS 2494 (SKRL 756) & STARLING 4 Miss Distance (Miss Distance) Trend

    COSMOS 2494 (SKRL 756) & STARLING 4 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2494 (SKRL 756)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLING 4Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2494 (SKRL 756)Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLING 4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2494 (SKRL 756)

    No nearby objects data