Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.993782E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-18T04:44:48+0800
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    1 Object 1

    AOE ID 49458
    NORAD ID 49458
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53419
    NORAD ID 53419
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3156 STARLINK-4476
    Time of Closest Approach 2026-10-18T00:09:49+0000
    Collision Probability (Pc) 4.993782E-6
    Conjunction Distance (km) 1.501 km
    Relative Speed (km/s) 9.619 km/s
    Conjunction Risk Parameters R (Radial): -1.5 | I (In-track): 0.006 | C (Cross-track): 0.009
    Collision Risk Index (CRI) 0.49
    X Position (km) -4137.442 -4136.543
    Position Y (km) 3298.064 3297.335
    Position Z (km) -4347.374 -4346.419
    Velocity X (km/s) -1.304 -6.075
    Velocity Y (km/s) -6.53 -2.726
    Velocity Z (km/s) -3.717 3.717

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3156 STARLINK-4476
    Semimajor Axis (a) 6843.567 km 6840.888 km
    Eccentricity (e) 0.000098 0.000191
    Inclination (i) 53.1591° 53.1606°
    RAAN 287.8723° 183.6836°
    Perigee Argument 123.3207° 112.3552°
    Mean Anomaly (M) 236.7889° 247.7654°
    Apogee 466.103 km 464.060 km
    Perigee 464.757 km 461.442 km
    Orbit Epoch 2026-10-17T01:15:22+0000 2026-10-17T02:30:23+0000

    STARLINK-3156 & STARLINK-4476 Collision Probability (Pc) Trend

    STARLINK-3156 & STARLINK-4476 Collision Probability (Pc) TrendNot Available

    STARLINK-3156 & STARLINK-4476 Miss Distance (Miss Distance) Trend

    STARLINK-3156 & STARLINK-4476 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3156Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4476Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3156Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4476Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3156

    No nearby objects data