Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    5.686889E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-14T07:36:27+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 12216
    NORAD ID 12216
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 43915
    NORAD ID 43915
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter DELTA 1 DEB YUNHAI 2-1F
    Time of Closest Approach 2026-09-14T19:36:21+0000
    Collision Probability (Pc) 5.686889E-6
    Conjunction Distance (km) 1.569 km
    Relative Speed (km/s) 14.384 km/s
    Conjunction Risk Parameters R (Radial): -1.549 | I (In-track): 0.073 | C (Cross-track): -0.232
    Collision Risk Index (CRI) 0.5
    X Position (km) -6717.734 -6719.267
    Position Y (km) -1837.094 -1837.283
    Position Z (km) -1708.328 -1708.601
    Velocity X (km/s) 1.458 0.016
    Velocity Y (km/s) 1.667 -5.11
    Velocity Z (km/s) -7.172 5.432

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 DEB YUNHAI 2-1F
    Semimajor Axis (a) 7265.312 km 7173.024 km
    Eccentricity (e) 0.018190 0.000725
    Inclination (i) 99.1118° 50.0096°
    RAAN 16.0138° 212.8010°
    Perigee Argument 240.3337° 279.2423°
    Mean Anomaly (M) 117.9608° 80.7673°
    Apogee 1019.335 km 800.087 km
    Perigee 755.015 km 789.687 km
    Orbit Epoch 2026-09-13T06:41:54+0000 2026-09-13T11:48:11+0000

    DELTA 1 DEB & YUNHAI 2-1F Collision Probability (Pc) Trend

    DELTA 1 DEB & YUNHAI 2-1F Collision Probability (Pc) TrendNot Available

    DELTA 1 DEB & YUNHAI 2-1F Miss Distance (Miss Distance) Trend

    DELTA 1 DEB & YUNHAI 2-1F Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YUNHAI 2-1FMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    YUNHAI 2-1FCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 DEB

    No nearby objects data