Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.364081E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T12:08:12+0800
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    1 Object 1

    AOE ID 20763
    NORAD ID 20763
    Object Type ROCKET BODY
    Country
    US US
    VS

    2 Object 2

    AOE ID 51968
    NORAD ID 51968
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter DELTA 2 R/B STARLINK-3681
    Time of Closest Approach 2026-09-06T00:18:52+0000
    Collision Probability (Pc) 2.364081E-6
    Conjunction Distance (km) 1.899 km
    Relative Speed (km/s) 8.849 km/s
    Conjunction Risk Parameters R (Radial): -1.865 | I (In-track): 0.27 | C (Cross-track): -0.229
    Collision Risk Index (CRI) 0.42
    X Position (km) -885.25 -885.331
    Position Y (km) 6520.121 6518.266
    Position Z (km) -1917.959 -1917.561
    Velocity X (km/s) -7.33 -4.495
    Velocity Y (km/s) -0.403 -2.288
    Velocity Z (km/s) 2.445 -5.722

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 2 R/B STARLINK-3681
    Semimajor Axis (a) 7057.427 km 6848.869 km
    Eccentricity (e) 0.032664 0.000128
    Inclination (i) 24.7589° 53.1597°
    RAAN 150.8266° 276.8270°
    Perigee Argument 323.1357° 82.1480°
    Mean Anomaly (M) 34.7107° 277.9667°
    Apogee 909.815 km 471.611 km
    Perigee 448.765 km 469.853 km
    Orbit Epoch 2026-09-03T20:08:54+0000 2026-09-03T11:56:07+0000

    DELTA 2 R/B & STARLINK-3681 Collision Probability (Pc) Trend

    DELTA 2 R/B & STARLINK-3681 Collision Probability (Pc) TrendNot Available

    DELTA 2 R/B & STARLINK-3681 Miss Distance (Miss Distance) Trend

    DELTA 2 R/B & STARLINK-3681 Miss Distance (Miss Distance) TrendNot Available

    DELTA 2 R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-3681Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 2 R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3681Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 2 R/B

    No nearby objects data