Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.691495E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T08:28:10+0800
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    1 Object 1

    AOE ID 47978
    NORAD ID 47978
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 59258
    NORAD ID 59258
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-1647 STARLINK-31637
    Time of Closest Approach 2026-10-22T20:04:17+0000
    Collision Probability (Pc) 1.691495E-6
    Conjunction Distance (km) 2.378 km
    Relative Speed (km/s) 11.889 km/s
    Conjunction Risk Parameters R (Radial): -2.341 | I (In-track): 0.266 | C (Cross-track): 0.317
    Collision Risk Index (CRI) 0.4
    X Position (km) 6449.971 6452.24
    Position Y (km) 980.221 980.148
    Position Z (km) 2042.281 2042.988
    Velocity X (km/s) -2.485 1.043
    Velocity Y (km/s) 4.476 5.012
    Velocity Z (km/s) 5.671 -5.67

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-1647 STARLINK-31637
    Semimajor Axis (a) 6838.305 km 6840.916 km
    Eccentricity (e) 0.000108 0.000165
    Inclination (i) 53.1598° 53.1557°
    RAAN 6.0067° 214.5310°
    Perigee Argument 65.6141° 97.8684°
    Mean Anomaly (M) 356.7409° 262.2506°
    Apogee 460.904 km 463.910 km
    Perigee 459.432 km 461.648 km
    Orbit Epoch 2026-10-20T12:00:03+0000 2026-10-20T04:51:19+0000

    STARLINK-1647 & STARLINK-31637 Collision Probability (Pc) Trend

    STARLINK-1647 & STARLINK-31637 Collision Probability (Pc) TrendNot Available

    STARLINK-1647 & STARLINK-31637 Miss Distance (Miss Distance) Trend

    STARLINK-1647 & STARLINK-31637 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-1647Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31637Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-1647Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31637Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-1647

    No nearby objects data