Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.658959E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T20:48:47+0800
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    1 Object 1

    Name CS1
    AOE ID 49261
    NORAD ID 49261
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53537
    NORAD ID 53537
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CS1 STARLINK-4120
    Time of Closest Approach 2026-10-21T03:14:55+0000
    Collision Probability (Pc) 1.658959E-6
    Conjunction Distance (km) 2.506 km
    Relative Speed (km/s) 13.544 km/s
    Conjunction Risk Parameters R (Radial): -2.185 | I (In-track): -0.562 | C (Cross-track): 1.088
    Collision Risk Index (CRI) 0.39
    X Position (km) -4445.035 -4446.934
    Position Y (km) -482.196 -483.359
    Position Z (km) 5164.611 5165.758
    Velocity X (km/s) -5.799 3.058
    Velocity Y (km/s) 0.875 -6.709
    Velocity Z (km/s) -4.89 2

    Orbital Parameters 国际轨道数据源

    Parameter CS1 STARLINK-4120
    Semimajor Axis (a) 6830.540 km 6840.891 km
    Eccentricity (e) 0.001063 0.000153
    Inclination (i) 97.3621° 53.1584°
    RAAN 356.5996° 132.3749°
    Perigee Argument 359.8310° 86.5611°
    Mean Anomaly (M) 0.2929° 273.5566°
    Apogee 459.662 km 463.800 km
    Perigee 445.144 km 461.708 km
    Orbit Epoch 2026-10-20T03:15:39+0000 2026-10-19T19:40:34+0000

    CS1 & STARLINK-4120 Collision Probability (Pc) Trend

    CS1 & STARLINK-4120 Collision Probability (Pc) TrendNot Available

    CS1 & STARLINK-4120 Miss Distance (Miss Distance) Trend

    CS1 & STARLINK-4120 Miss Distance (Miss Distance) TrendNot Available

    CS1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4120Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CS1Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4120Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CS1

    No nearby objects data