Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.348794E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T00:52:03+0800
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    1 Object 1

    AOE ID 43276
    NORAD ID 43276
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 44517
    NORAD ID 44517
    Object Type PAYLOAD
    Country
    CIS CIS

    Conjunction Constraints

    Parameter YAOGAN-31 B COSMOS 2540
    Time of Closest Approach 2026-10-28T08:06:12+0000
    Collision Probability (Pc) 1.348794E-6
    Conjunction Distance (km) 2.948 km
    Relative Speed (km/s) 14.436 km/s
    Conjunction Risk Parameters R (Radial): -2.931 | I (In-track): 0.092 | C (Cross-track): -0.287
    Collision Risk Index (CRI) 0.38
    X Position (km) -3885.197 -3883.882
    Position Y (km) 3210.264 3208.816
    Position Z (km) 5295.741 5293.536
    Velocity X (km/s) 0.002 -2.922
    Velocity Y (km/s) -6.288 4.639
    Velocity Z (km/s) 4.013 -4.955

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN-31 B COSMOS 2540
    Semimajor Axis (a) 7467.119 km 7320.935 km
    Eccentricity (e) 0.028694 0.001575
    Inclination (i) 63.3911° 99.2063°
    RAAN 111.3556° 309.6064°
    Perigee Argument 7.9107° 173.5647°
    Mean Anomaly (M) 352.6303° 186.5714°
    Apogee 1303.243 km 954.327 km
    Perigee 874.721 km 931.269 km
    Orbit Epoch 2026-10-27T06:52:35+0000 2026-10-27T07:12:31+0000

    YAOGAN-31 B & COSMOS 2540 Collision Probability (Pc) Trend

    YAOGAN-31 B & COSMOS 2540 Collision Probability (Pc) TrendNot Available

    YAOGAN-31 B & COSMOS 2540 Miss Distance (Miss Distance) Trend

    YAOGAN-31 B & COSMOS 2540 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN-31 BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    COSMOS 2540Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN-31 BCollision Probability Trend

    Object 1 Probability TrendNot Available

    COSMOS 2540Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN-31 B

    No nearby objects data