Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.008491E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-18T11:45:52+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 4547
    NORAD ID 4547
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 43909
    NORAD ID 43909
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter THORAD AGENA D DEB YUNHAI 2-1A
    Time of Closest Approach 2026-10-18T05:24:38+0000
    Collision Probability (Pc) 1.008491E-6
    Conjunction Distance (km) 2.267 km
    Relative Speed (km/s) 4.17 km/s
    Conjunction Risk Parameters R (Radial): -2.262 | I (In-track): -0.135 | C (Cross-track): -0.035
    Collision Risk Index (CRI) 0.35
    X Position (km) -1924.087 -1923.418
    Position Y (km) 4969.673 4968.206
    Position Z (km) -4810.774 -4809.181
    Velocity X (km/s) -1.599 -5.115
    Velocity Y (km/s) -5.364 -4.656
    Velocity Z (km/s) -4.895 -2.766

    Orbital Parameters 国际轨道数据源

    Parameter THORAD AGENA D DEB YUNHAI 2-1A
    Semimajor Axis (a) 7151.747 km 7173.004 km
    Eccentricity (e) 0.003169 0.000033
    Inclination (i) 69.9867° 50.0090°
    RAAN 273.9632° 243.2882°
    Perigee Argument 29.3435° 313.6606°
    Mean Anomaly (M) 330.9462° 46.4281°
    Apogee 796.275 km 795.104 km
    Perigee 750.945 km 794.630 km
    Orbit Epoch 2026-10-17T08:17:44+0000 2026-10-17T21:34:29+0000

    THORAD AGENA D DEB & YUNHAI 2-1A Collision Probability (Pc) Trend

    THORAD AGENA D DEB & YUNHAI 2-1A Collision Probability (Pc) TrendNot Available

    THORAD AGENA D DEB & YUNHAI 2-1A Miss Distance (Miss Distance) Trend

    THORAD AGENA D DEB & YUNHAI 2-1A Miss Distance (Miss Distance) TrendNot Available

    THORAD AGENA D DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YUNHAI 2-1AMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    THORAD AGENA D DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    YUNHAI 2-1ACollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with THORAD AGENA D DEB

    No nearby objects data