Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.55238E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-14T15:08:40+0800
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    1 Object 1

    AOE ID 933
    NORAD ID 933
    Object Type ROCKET BODY
    Country
    US US
    VS

    2 Object 2

    Name YIJIAN
    AOE ID 41899
    NORAD ID 41899
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter SCOUT X-4 R/B YIJIAN
    Time of Closest Approach 2026-09-15T06:26:24+0000
    Collision Probability (Pc) 2.55238E-6
    Conjunction Distance (km) 2.113 km
    Relative Speed (km/s) 15.343 km/s
    Conjunction Risk Parameters R (Radial): 1.479 | I (In-track): -0.044 | C (Cross-track): -1.508
    Collision Risk Index (CRI) 0.43
    X Position (km) -1238.88 -1240.61
    Position Y (km) -6915.22 -6916.386
    Position Z (km) -686.612 -686.939
    Velocity X (km/s) 1.21 -1.229
    Velocity Y (km/s) 0.048 -0.497
    Velocity Z (km/s) -7.734 7.404

    Orbital Parameters 国际轨道数据源

    Parameter SCOUT X-4 R/B YIJIAN
    Semimajor Axis (a) 7708.896 km 7068.564 km
    Eccentricity (e) 0.104894 0.002165
    Inclination (i) 81.3314° 98.5438°
    RAAN 80.0656° 257.6476°
    Perigee Argument 148.8995° 37.1514°
    Mean Anomaly (M) 217.8784° 323.1179°
    Apogee 2139.376 km 705.730 km
    Perigee 522.142 km 675.124 km
    Orbit Epoch 2026-09-13T21:43:25+0000 2026-09-13T23:13:58+0000

    SCOUT X-4 R/B & YIJIAN Collision Probability (Pc) Trend

    SCOUT X-4 R/B & YIJIAN Collision Probability (Pc) TrendNot Available

    SCOUT X-4 R/B & YIJIAN Miss Distance (Miss Distance) Trend

    SCOUT X-4 R/B & YIJIAN Miss Distance (Miss Distance) TrendNot Available

    SCOUT X-4 R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YIJIANMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SCOUT X-4 R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    YIJIANCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SCOUT X-4 R/B

    No nearby objects data