Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.717273E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T01:06:26+0800
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    1 Object 1

    AOE ID 25864
    NORAD ID 25864
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 54700
    NORAD ID 54700
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter SL-16 DEB SHIYAN 20B (SY-20B)
    Time of Closest Approach 2026-10-18T23:56:17+0000
    Collision Probability (Pc) 1.717273E-6
    Conjunction Distance (km) 2.521 km
    Relative Speed (km/s) 14.612 km/s
    Conjunction Risk Parameters R (Radial): 1.485 | I (In-track): 0.389 | C (Cross-track): -1.998
    Collision Risk Index (CRI) 0.4
    X Position (km) 7049.026 7050.11
    Position Y (km) 1376.644 1378.811
    Position Z (km) 54.907 55.598
    Velocity X (km/s) 0.039 -0.657
    Velocity Y (km/s) -1.112 3.664
    Velocity Z (km/s) 7.343 -6.448

    Orbital Parameters 国际轨道数据源

    Parameter SL-16 DEB SHIYAN 20B (SY-20B)
    Semimajor Axis (a) 7132.879 km 7171.294 km
    Eccentricity (e) 0.016307 0.001578
    Inclination (i) 98.5172° 59.9967°
    RAAN 10.2915° 192.8238°
    Perigee Argument 117.5267° 9.5746°
    Mean Anomaly (M) 274.6328° 350.5587°
    Apogee 871.058 km 804.472 km
    Perigee 638.426 km 781.842 km
    Orbit Epoch 2026-10-18T04:04:50+0000 2026-10-18T13:01:52+0000

    SL-16 DEB & SHIYAN 20B (SY-20B) Collision Probability (Pc) Trend

    SL-16 DEB & SHIYAN 20B (SY-20B) Collision Probability (Pc) TrendNot Available

    SL-16 DEB & SHIYAN 20B (SY-20B) Miss Distance (Miss Distance) Trend

    SL-16 DEB & SHIYAN 20B (SY-20B) Miss Distance (Miss Distance) TrendNot Available

    SL-16 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

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

    Object 2 Miss Distance TrendNot Available

    SL-16 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

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

    Object 2 Probability TrendNot Available

    Nearby Objects with SL-16 DEB

    No nearby objects data