Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.072734E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-06T01:16:44+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 18504
    NORAD ID 18504
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 53933
    NORAD ID 53933
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SL-8 DEB * STARLINK-4782
    Time of Closest Approach 2026-09-07T06:14:04+0000
    Collision Probability (Pc) 2.072734E-6
    Conjunction Distance (km) 2.235 km
    Relative Speed (km/s) 13.461 km/s
    Conjunction Risk Parameters R (Radial): -1.393 | I (In-track): -0.811 | C (Cross-track): -1.545
    Collision Risk Index (CRI) 0.41
    X Position (km) 6394.394 6395.125
    Position Y (km) 1823.909 1825.901
    Position Z (km) 1898.415 1899.114
    Velocity X (km/s) -2.53 0.276
    Velocity Y (km/s) 1.537 5.002
    Velocity Z (km/s) 6.993 -5.708

    Orbital Parameters 国际轨道数据源

    Parameter SL-8 DEB * STARLINK-4782
    Semimajor Axis (a) 6912.399 km 6917.866 km
    Eccentricity (e) 0.000762 0.000127
    Inclination (i) 74.0247° 53.1604°
    RAAN 15.6849° 217.3633°
    Perigee Argument 138.9093° 59.9166°
    Mean Anomaly (M) 36.1769° 300.1951°
    Apogee 539.527 km 540.605 km
    Perigee 528.997 km 538.853 km
    Orbit Epoch 2026-09-05T02:28:59+0000 2026-09-05T05:50:13+0000

    SL-8 DEB * & STARLINK-4782 Collision Probability (Pc) Trend

    SL-8 DEB * & STARLINK-4782 Collision Probability (Pc) TrendNot Available

    SL-8 DEB * & STARLINK-4782 Miss Distance (Miss Distance) Trend

    SL-8 DEB * & STARLINK-4782 Miss Distance (Miss Distance) TrendNot Available

    SL-8 DEB *Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4782Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SL-8 DEB *Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4782Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SL-8 DEB *

    No nearby objects data