Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.22339E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-14T06:43:22+0800
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    1 Object 1

    AOE ID 31305
    NORAD ID 31305
    Object Type ROCKET BODY
    Country
    US US
    VS

    2 Object 2

    AOE ID 58758
    NORAD ID 58758
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter PEGASUS R/B YUNYAO-1 18
    Time of Closest Approach 2026-09-14T21:43:25+0000
    Collision Probability (Pc) 1.22339E-5
    Conjunction Distance (km) 1.252 km
    Relative Speed (km/s) 14.482 km/s
    Conjunction Risk Parameters R (Radial): 1.247 | I (In-track): -0.041 | C (Cross-track): -0.104
    Collision Risk Index (CRI) 0.57
    X Position (km) 4080.728 4081.557
    Position Y (km) 4751.656 4752.472
    Position Z (km) -2818.878 -2819.337
    Velocity X (km/s) -1.136 -2.626
    Velocity Y (km/s) -3.091 5.18
    Velocity Z (km/s) -6.863 4.93

    Orbital Parameters 国际轨道数据源

    Parameter PEGASUS R/B YUNYAO-1 18
    Semimajor Axis (a) 6854.982 km 6868.257 km
    Eccentricity (e) 0.001175 0.000532
    Inclination (i) 97.9371° 50.0123°
    RAAN 231.2987° 77.9847°
    Perigee Argument 22.2590° 256.5203°
    Mean Anomaly (M) 337.9157° 103.5160°
    Apogee 484.900 km 493.772 km
    Perigee 468.790 km 486.468 km
    Orbit Epoch 2026-09-13T08:43:27+0000 2026-09-13T14:25:06+0000

    PEGASUS R/B & YUNYAO-1 18 Collision Probability (Pc) Trend

    PEGASUS R/B & YUNYAO-1 18 Collision Probability (Pc) TrendNot Available

    PEGASUS R/B & YUNYAO-1 18 Miss Distance (Miss Distance) Trend

    PEGASUS R/B & YUNYAO-1 18 Miss Distance (Miss Distance) TrendNot Available

    PEGASUS R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YUNYAO-1 18Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    PEGASUS R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    YUNYAO-1 18Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with PEGASUS R/B

    No nearby objects data