Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.56473E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-25T10:33:10+0800
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    1 Object 1

    AOE ID 54699
    NORAD ID 54699
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 56646
    NORAD ID 56646
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter SHIYAN 20A (SY-20A) CZ-6A DEB
    Time of Closest Approach 2026-10-25T14:40:16+0000
    Collision Probability (Pc) 2.56473E-6
    Conjunction Distance (km) 2.075 km
    Relative Speed (km/s) 14.402 km/s
    Conjunction Risk Parameters R (Radial): -2.072 | I (In-track): -0.011 | C (Cross-track): 0.087
    Collision Risk Index (CRI) 0.43
    X Position (km) -5125.48 -5123.99
    Position Y (km) -1784.301 -1783.706
    Position Z (km) 4668.787 4667.471
    Velocity X (km/s) 5.078 -4.945
    Velocity Y (km/s) -3.448 -0.153
    Velocity Z (km/s) 4.252 -5.55

    Orbital Parameters 国际轨道数据源

    Parameter SHIYAN 20A (SY-20A) CZ-6A DEB
    Semimajor Axis (a) 7171.248 km 7104.676 km
    Eccentricity (e) 0.001144 0.010315
    Inclination (i) 59.9958° 98.6879°
    RAAN 173.8102° 8.4069°
    Perigee Argument 24.8681° 287.7857°
    Mean Anomaly (M) 335.2903° 71.2102°
    Apogee 801.318 km 799.826 km
    Perigee 784.904 km 653.252 km
    Orbit Epoch 2026-10-24T06:33:07+0000 2026-10-22T11:29:08+0000

    SHIYAN 20A (SY-20A) & CZ-6A DEB Collision Probability (Pc) Trend

    SHIYAN 20A (SY-20A) & CZ-6A DEB Collision Probability (Pc) TrendNot Available

    SHIYAN 20A (SY-20A) & CZ-6A DEB Miss Distance (Miss Distance) Trend

    SHIYAN 20A (SY-20A) & CZ-6A DEB Miss Distance (Miss Distance) TrendNot Available

    SHIYAN 20A (SY-20A)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    CZ-6A DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SHIYAN 20A (SY-20A)Collision Probability Trend

    Object 1 Probability TrendNot Available

    CZ-6A DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SHIYAN 20A (SY-20A)

    No nearby objects data