Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.001395E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-15T11:12:50+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 57263
    NORAD ID 57263
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 61872
    NORAD ID 61872
    Object Type UNKNOWN
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-5509 OBJECT D
    Time of Closest Approach 2026-10-15T23:24:57+0000
    Collision Probability (Pc) 3.001395E-6
    Conjunction Distance (km) 1.918 km
    Relative Speed (km/s) 13.416 km/s
    Conjunction Risk Parameters R (Radial): 1.913 | I (In-track): -0.054 | C (Cross-track): -0.126
    Collision Risk Index (CRI) 0.45
    X Position (km) 5445.577 5447.139
    Position Y (km) -668.622 -668.916
    Position Z (km) 4111.645 4112.717
    Velocity X (km/s) 2.694 -4.632
    Velocity Y (km/s) 6.693 -0.669
    Velocity Z (km/s) -2.473 6.017

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5509 OBJECT D
    Semimajor Axis (a) 6861.152 km 6857.359 km
    Eccentricity (e) 0.000130 0.000830
    Inclination (i) 43.0037° 97.4132°
    RAAN 236.6200° 356.8969°
    Perigee Argument 273.0210° 276.9876°
    Mean Anomaly (M) 87.0493° 83.0420°
    Apogee 483.907 km 484.913 km
    Perigee 482.123 km 473.531 km
    Orbit Epoch 2026-10-14T04:31:49+0000 2026-10-14T06:24:48+0000

    STARLINK-5509 & OBJECT D Collision Probability (Pc) Trend

    STARLINK-5509 & OBJECT D Collision Probability (Pc) TrendNot Available

    STARLINK-5509 & OBJECT D Miss Distance (Miss Distance) Trend

    STARLINK-5509 & OBJECT D Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5509Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    OBJECT DMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5509Collision Probability Trend

    Object 1 Probability TrendNot Available

    OBJECT DCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5509

    No nearby objects data