Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    5.658089E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T14:00:49+0800
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    1 Object 1

    AOE ID 13121
    NORAD ID 13121
    Object Type ROCKET BODY
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 53869
    NORAD ID 53869
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SL-3 R/B STARLINK-4810
    Time of Closest Approach 2026-10-20T15:05:59+0000
    Collision Probability (Pc) 5.658089E-6
    Conjunction Distance (km) 1.562 km
    Relative Speed (km/s) 13.962 km/s
    Conjunction Risk Parameters R (Radial): 1.543 | I (In-track): -0.099 | C (Cross-track): 0.218
    Collision Risk Index (CRI) 0.5
    X Position (km) 4576.955 4576.081
    Position Y (km) -4764.373 -4763.128
    Position Z (km) -1819.889 -1819.535
    Velocity X (km/s) -0.509 4.516
    Velocity Y (km/s) 2.28 2.145
    Velocity Z (km/s) -7.263 5.763

    Orbital Parameters 国际轨道数据源

    Parameter SL-3 R/B STARLINK-4810
    Semimajor Axis (a) 6852.162 km 6848.847 km
    Eccentricity (e) 0.000702 0.000067
    Inclination (i) 81.1850° 53.1644°
    RAAN 132.2181° 331.2222°
    Perigee Argument 225.9585° 24.4404°
    Mean Anomaly (M) 134.1075° 335.6629°
    Apogee 478.834 km 471.169 km
    Perigee 469.216 km 470.251 km
    Orbit Epoch 2026-10-19T22:33:30+0000 2026-10-19T10:59:47+0000

    SL-3 R/B & STARLINK-4810 Collision Probability (Pc) Trend

    SL-3 R/B & STARLINK-4810 Collision Probability (Pc) TrendNot Available

    SL-3 R/B & STARLINK-4810 Miss Distance (Miss Distance) Trend

    SL-3 R/B & STARLINK-4810 Miss Distance (Miss Distance) TrendNot Available

    SL-3 R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4810Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SL-3 R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4810Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SL-3 R/B

    No nearby objects data