Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.851692E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T04:54:36+0800
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    1 Object 1

    AOE ID 7411
    NORAD ID 7411
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58073
    NORAD ID 58073
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter OPS 6983 (DMSP 5C F1) YUNHAI 1-04
    Time of Closest Approach 2026-09-16T08:48:01+0000
    Collision Probability (Pc) 2.851692E-6
    Conjunction Distance (km) 2.001 km
    Relative Speed (km/s) 14.759 km/s
    Conjunction Risk Parameters R (Radial): 1.806 | I (In-track): -0.14 | C (Cross-track): 0.851
    Collision Risk Index (CRI) 0.44
    X Position (km) 1370.31 1371.5
    Position Y (km) -6836.915 -6838.467
    Position Z (km) 1627.415 1627.835
    Velocity X (km/s) -0.775 -1.441
    Velocity Y (km/s) -1.904 1.43
    Velocity Z (km/s) -7.181 7.181

    Orbital Parameters 国际轨道数据源

    Parameter OPS 6983 (DMSP 5C F1) YUNHAI 1-04
    Semimajor Axis (a) 7170.777 km 7161.122 km
    Eccentricity (e) 0.004200 0.000016
    Inclination (i) 98.5099° 98.4948°
    RAAN 98.2738° 282.5842°
    Perigee Argument 102.1462° 2.8056°
    Mean Anomaly (M) 258.4430° 357.3129°
    Apogee 822.756 km 783.101 km
    Perigee 762.524 km 782.869 km
    Orbit Epoch 2026-09-15T06:50:02+0000 2026-09-15T14:18:01+0000

    OPS 6983 (DMSP 5C F1) & YUNHAI 1-04 Collision Probability (Pc) Trend

    OPS 6983 (DMSP 5C F1) & YUNHAI 1-04 Collision Probability (Pc) TrendNot Available

    OPS 6983 (DMSP 5C F1) & YUNHAI 1-04 Miss Distance (Miss Distance) Trend

    OPS 6983 (DMSP 5C F1) & YUNHAI 1-04 Miss Distance (Miss Distance) TrendNot Available

    OPS 6983 (DMSP 5C F1)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YUNHAI 1-04Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    OPS 6983 (DMSP 5C F1)Collision Probability Trend

    Object 1 Probability TrendNot Available

    YUNHAI 1-04Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OPS 6983 (DMSP 5C F1)

    No nearby objects data