Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.834785E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T21:40:17+0800
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    1 Object 1

    AOE ID 51102
    NORAD ID 51102
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 58998
    NORAD ID 58998
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SHIYAN 13 (SY-13) STARLINK-31468
    Time of Closest Approach 2026-10-21T20:35:33+0000
    Collision Probability (Pc) 1.834785E-6
    Conjunction Distance (km) 2.436 km
    Relative Speed (km/s) 14.697 km/s
    Conjunction Risk Parameters R (Radial): 2.43 | I (In-track): -0.088 | C (Cross-track): 0.138
    Collision Risk Index (CRI) 0.4
    X Position (km) -4053.936 -4052.623
    Position Y (km) 3947.359 3945.858
    Position Z (km) 3840.208 3838.811
    Velocity X (km/s) -1.977 -1.739
    Velocity Y (km/s) 3.864 -6.033
    Velocity Z (km/s) -6.51 4.351

    Orbital Parameters 国际轨道数据源

    Parameter SHIYAN 13 (SY-13) STARLINK-31468
    Semimajor Axis (a) 7200.239 km 6840.848 km
    Eccentricity (e) 0.060187 0.000151
    Inclination (i) 98.4533° 53.1576°
    RAAN 308.4492° 114.6569°
    Perigee Argument 185.8378° 92.0976°
    Mean Anomaly (M) 173.5563° 268.0199°
    Apogee 1255.463 km 463.745 km
    Perigee 388.741 km 461.677 km
    Orbit Epoch 2026-10-20T06:42:37+0000 2026-10-19T19:56:18+0000

    SHIYAN 13 (SY-13) & STARLINK-31468 Collision Probability (Pc) Trend

    SHIYAN 13 (SY-13) & STARLINK-31468 Collision Probability (Pc) TrendNot Available

    SHIYAN 13 (SY-13) & STARLINK-31468 Miss Distance (Miss Distance) Trend

    SHIYAN 13 (SY-13) & STARLINK-31468 Miss Distance (Miss Distance) TrendNot Available

    SHIYAN 13 (SY-13)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31468Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SHIYAN 13 (SY-13)Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31468Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SHIYAN 13 (SY-13)

    No nearby objects data