Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.269249E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T07:46:26+0800
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    1 Object 1

    AOE ID 20576
    NORAD ID 20576
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 57983
    NORAD ID 57983
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter ATLAS 28E DEB STARLINK-30515
    Time of Closest Approach 2026-10-21T20:13:47+0000
    Collision Probability (Pc) 1.269249E-6
    Conjunction Distance (km) 2.791 km
    Relative Speed (km/s) 11.462 km/s
    Conjunction Risk Parameters R (Radial): 0.993 | I (In-track): -1.707 | C (Cross-track): 1.972
    Collision Risk Index (CRI) 0.37
    X Position (km) 942.587 940.294
    Position Y (km) 4990.465 4988.988
    Position Z (km) -4618.659 -4619.246
    Velocity X (km/s) -1.051 -7.264
    Velocity Y (km/s) -5 2.139
    Velocity Z (km/s) -5.633 0.833

    Orbital Parameters 国际轨道数据源

    Parameter ATLAS 28E DEB STARLINK-30515
    Semimajor Axis (a) 6839.615 km 6861.226 km
    Eccentricity (e) 0.002911 0.000110
    Inclination (i) 89.4135° 43.0033°
    RAAN 258.8879° 167.0846°
    Perigee Argument 69.4530° 271.9806°
    Mean Anomaly (M) 290.9843° 88.0920°
    Apogee 481.389 km 483.847 km
    Perigee 441.567 km 482.331 km
    Orbit Epoch 2026-10-20T08:50:28+0000 2026-10-20T00:38:33+0000

    ATLAS 28E DEB & STARLINK-30515 Collision Probability (Pc) Trend

    ATLAS 28E DEB & STARLINK-30515 Collision Probability (Pc) TrendNot Available

    ATLAS 28E DEB & STARLINK-30515 Miss Distance (Miss Distance) Trend

    ATLAS 28E DEB & STARLINK-30515 Miss Distance (Miss Distance) TrendNot Available

    ATLAS 28E DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30515Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ATLAS 28E DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30515Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ATLAS 28E DEB

    No nearby objects data