Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    7.19842E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T16:11:01+0800
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    1 Object 1

    AOE ID 58758
    NORAD ID 58758
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 59515
    NORAD ID 59515
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YUNYAO-1 18 STARLINK-31669
    Time of Closest Approach 2026-10-20T17:51:46+0000
    Collision Probability (Pc) 7.19842E-6
    Conjunction Distance (km) 1.353 km
    Relative Speed (km/s) 9.942 km/s
    Conjunction Risk Parameters R (Radial): 0.75 | I (In-track): 0.857 | C (Cross-track): 0.732
    Collision Risk Index (CRI) 0.52
    X Position (km) 772.956 771.761
    Position Y (km) -6179.657 -6179.155
    Position Z (km) 2873.021 2872.634
    Velocity X (km/s) 5.075 6.331
    Velocity Y (km/s) 2.919 -1.123
    Velocity Z (km/s) 4.892 -4.104

    Orbital Parameters 国际轨道数据源

    Parameter YUNYAO-1 18 STARLINK-31669
    Semimajor Axis (a) 6865.905 km 6861.190 km
    Eccentricity (e) 0.000624 0.000110
    Inclination (i) 50.0185° 43.0022°
    RAAN 263.1341° 138.7561°
    Perigee Argument 43.8384° 264.2070°
    Mean Anomaly (M) 316.3066° 95.8656°
    Apogee 492.049 km 483.810 km
    Perigee 483.487 km 482.296 km
    Orbit Epoch 2026-10-18T23:17:12+0000 2026-10-18T15:01:39+0000

    YUNYAO-1 18 & STARLINK-31669 Collision Probability (Pc) Trend

    YUNYAO-1 18 & STARLINK-31669 Collision Probability (Pc) TrendNot Available

    YUNYAO-1 18 & STARLINK-31669 Miss Distance (Miss Distance) Trend

    YUNYAO-1 18 & STARLINK-31669 Miss Distance (Miss Distance) TrendNot Available

    YUNYAO-1 18Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31669Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YUNYAO-1 18Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31669Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YUNYAO-1 18

    No nearby objects data