Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.529496E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T13:25:37+0800
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    1 Object 1

    AOE ID 39239
    NORAD ID 39239
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 43925
    NORAD ID 43925
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 17A IRIDIUM 173
    Time of Closest Approach 2026-10-21T13:45:50+0000
    Collision Probability (Pc) 3.529496E-6
    Conjunction Distance (km) 1.842 km
    Relative Speed (km/s) 14.552 km/s
    Conjunction Risk Parameters R (Radial): -0.285 | I (In-track): -0.49 | C (Cross-track): -1.752
    Collision Risk Index (CRI) 0.46
    X Position (km) -3678.808 -3680.457
    Position Y (km) 6095.086 6094.374
    Position Z (km) -759.543 -759.949
    Velocity X (km/s) -3.252 0
    Velocity Y (km/s) -1.25 -0.913
    Velocity Z (km/s) 6.773 -7.406

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 17A IRIDIUM 173
    Semimajor Axis (a) 7466.927 km 7155.804 km
    Eccentricity (e) 0.043731 0.000223
    Inclination (i) 63.3826° 86.3925°
    RAAN 128.3952° 301.6625°
    Perigee Argument 12.5272° 91.4878°
    Mean Anomaly (M) 348.6215° 268.6573°
    Apogee 1415.327 km 779.265 km
    Perigee 762.253 km 776.069 km
    Orbit Epoch 2026-10-19T22:33:13+0000 2026-10-19T08:59:31+0000

    YAOGAN 17A & IRIDIUM 173 Collision Probability (Pc) Trend

    YAOGAN 17A & IRIDIUM 173 Collision Probability (Pc) TrendNot Available

    YAOGAN 17A & IRIDIUM 173 Miss Distance (Miss Distance) Trend

    YAOGAN 17A & IRIDIUM 173 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 17AMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 173Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 17ACollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 173Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 17A

    No nearby objects data