Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.063497E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T13:36:44+0800
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    1 Object 1

    AOE ID 49460
    NORAD ID 49460
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 52610
    NORAD ID 52610
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3140 STARLINK-3998
    Time of Closest Approach 2026-10-21T14:13:32+0000
    Collision Probability (Pc) 3.063497E-6
    Conjunction Distance (km) 1.618 km
    Relative Speed (km/s) 6.532 km/s
    Conjunction Risk Parameters R (Radial): -1.613 | I (In-track): 0.1 | C (Cross-track): -0.054
    Collision Risk Index (CRI) 0.45
    X Position (km) -3998.675 -3997.674
    Position Y (km) -2159.111 -2158.699
    Position Z (km) -5120.629 -5119.427
    Velocity X (km/s) 1.125 5.422
    Velocity Y (km/s) -7.223 -4.903
    Velocity Z (km/s) 2.168 -2.169

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3140 STARLINK-3998
    Semimajor Axis (a) 6840.885 km 6837.895 km
    Eccentricity (e) 0.000111 0.000320
    Inclination (i) 53.1586° 53.1587°
    RAAN 276.9272° 338.8520°
    Perigee Argument 91.0992° 81.1233°
    Mean Anomaly (M) 269.0137° 279.0132°
    Apogee 463.505 km 461.945 km
    Perigee 461.991 km 457.571 km
    Orbit Epoch 2026-10-19T06:14:56+0000 2026-10-19T20:31:36+0000

    STARLINK-3140 & STARLINK-3998 Collision Probability (Pc) Trend

    STARLINK-3140 & STARLINK-3998 Collision Probability (Pc) TrendNot Available

    STARLINK-3140 & STARLINK-3998 Miss Distance (Miss Distance) Trend

    STARLINK-3140 & STARLINK-3998 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3140Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-3998Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3140Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3998Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3140

    No nearby objects data