Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.423414E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T18:14:45+0800
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    1 Object 1

    AOE ID 49414
    NORAD ID 49414
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53578
    NORAD ID 53578
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3146 STARLINK-4556
    Time of Closest Approach 2026-10-21T18:20:13+0000
    Collision Probability (Pc) 2.423414E-6
    Conjunction Distance (km) 2.037 km
    Relative Speed (km/s) 12.223 km/s
    Conjunction Risk Parameters R (Radial): 1.601 | I (In-track): 0.75 | C (Cross-track): -1.01
    Collision Risk Index (CRI) 0.43
    X Position (km) -792.902 -791.467
    Position Y (km) 6796.53 6795.087
    Position Z (km) -121.763 -121.729
    Velocity X (km/s) -4.535 -4.558
    Velocity Y (km/s) -0.63 -0.429
    Velocity Z (km/s) -6.11 6.111

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3146 STARLINK-4556
    Semimajor Axis (a) 6843.393 km 6840.862 km
    Eccentricity (e) 0.000308 0.000170
    Inclination (i) 53.1554° 53.1582°
    RAAN 288.8269° 111.1135°
    Perigee Argument 102.0560° 88.8000°
    Mean Anomaly (M) 258.0787° 271.3197°
    Apogee 467.366 km 463.887 km
    Perigee 463.146 km 461.563 km
    Orbit Epoch 2026-10-18T23:51:27+0000 2026-10-18T19:59:45+0000

    STARLINK-3146 & STARLINK-4556 Collision Probability (Pc) Trend

    STARLINK-3146 & STARLINK-4556 Collision Probability (Pc) TrendNot Available

    STARLINK-3146 & STARLINK-4556 Miss Distance (Miss Distance) Trend

    STARLINK-3146 & STARLINK-4556 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3146Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4556Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3146Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4556Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3146

    No nearby objects data