Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.759747E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T13:48:24+0800
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    1 Object 1

    AOE ID 52640
    NORAD ID 52640
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 54692
    NORAD ID 54692
    Object Type UNKNOWN
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-3977 OBJECT L
    Time of Closest Approach 2026-10-21T22:55:11+0000
    Collision Probability (Pc) 1.759747E-6
    Conjunction Distance (km) 2.489 km
    Relative Speed (km/s) 14.661 km/s
    Conjunction Risk Parameters R (Radial): 2.418 | I (In-track): -0.164 | C (Cross-track): 0.566
    Collision Risk Index (CRI) 0.4
    X Position (km) 1828.412 1828.571
    Position Y (km) -6047.749 -6050.13
    Position Z (km) -2632.548 -2633.255
    Velocity X (km/s) 5.388 -1.897
    Velocity Y (km/s) -0.698 2.452
    Velocity Z (km/s) 5.359 -6.967

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3977 OBJECT L
    Semimajor Axis (a) 6840.854 km 6836.264 km
    Eccentricity (e) 0.000125 0.000812
    Inclination (i) 53.1607° 97.7005°
    RAAN 316.8780° 107.9666°
    Perigee Argument 86.3292° 43.6848°
    Mean Anomaly (M) 273.7853° 316.5036°
    Apogee 463.572 km 463.677 km
    Perigee 461.862 km 452.577 km
    Orbit Epoch 2026-10-19T10:04:40+0000 2026-10-19T23:08:03+0000

    STARLINK-3977 & OBJECT L Collision Probability (Pc) Trend

    STARLINK-3977 & OBJECT L Collision Probability (Pc) TrendNot Available

    STARLINK-3977 & OBJECT L Miss Distance (Miss Distance) Trend

    STARLINK-3977 & OBJECT L Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3977Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    OBJECT LMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3977Collision Probability Trend

    Object 1 Probability TrendNot Available

    OBJECT LCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3977

    No nearby objects data