Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.473959E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-11-05T16:43:35+0800
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    1 Object 1

    Name DFH-1
    AOE ID 4382
    NORAD ID 4382
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    Name YAM-17
    AOE ID 69884
    NORAD ID 69884
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter DFH-1 YAM-17
    Time of Closest Approach 2026-11-05T14:42:35+0000
    Collision Probability (Pc) 1.473959E-6
    Conjunction Distance (km) 2.387 km
    Relative Speed (km/s) 9.554 km/s
    Conjunction Risk Parameters R (Radial): -2.363 | I (In-track): -0.148 | C (Cross-track): 0.299
    Collision Risk Index (CRI) 0.38
    X Position (km) 2961.817 2961.107
    Position Y (km) 488.551 488.461
    Position Z (km) -6307.174 -6304.897
    Velocity X (km/s) -4.475 -6.024
    Velocity Y (km/s) 6.051 -3.335
    Velocity Z (km/s) -2.204 -3.089

    Orbital Parameters 国际轨道数据源

    Parameter DFH-1 YAM-17
    Semimajor Axis (a) 7583.098 km 6974.529 km
    Eccentricity (e) 0.103096 0.000150
    Inclination (i) 68.4256° 97.5560°
    RAAN 134.6428° 204.4237°
    Perigee Argument 213.5494° 91.4325°
    Mean Anomaly (M) 139.6001° 268.7066°
    Apogee 1986.749 km 597.439 km
    Perigee 423.173 km 595.345 km
    Orbit Epoch 2026-11-04T20:58:56+0000 2026-11-04T10:13:16+0000

    DFH-1 & YAM-17 Collision Probability (Pc) Trend

    DFH-1 & YAM-17 Collision Probability (Pc) TrendNot Available

    DFH-1 & YAM-17 Miss Distance (Miss Distance) Trend

    DFH-1 & YAM-17 Miss Distance (Miss Distance) TrendNot Available

    DFH-1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YAM-17Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DFH-1Collision Probability Trend

    Object 1 Probability TrendNot Available

    YAM-17Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DFH-1

    No nearby objects data