Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.715738E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T19:37:24+0800
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    1 Object 1

    Name USA 57
    AOE ID 20561
    NORAD ID 20561
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 30759
    NORAD ID 30759
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter USA 57 FENGYUN 1C DEB
    Time of Closest Approach 2026-10-30T17:30:55+0000
    Collision Probability (Pc) 2.715738E-6
    Conjunction Distance (km) 2.044 km
    Relative Speed (km/s) 14.884 km/s
    Conjunction Risk Parameters R (Radial): -0.245 | I (In-track): 0.251 | C (Cross-track): 2.014
    Collision Risk Index (CRI) 0.44
    X Position (km) 643.431 641.433
    Position Y (km) 4634.932 4635.186
    Position Z (km) 5297.478 5297.826
    Velocity X (km/s) 0.742 1.061
    Velocity Y (km/s) 5.56 -5.66
    Velocity Z (km/s) -4.957 4.817

    Orbital Parameters 国际轨道数据源

    Parameter USA 57 FENGYUN 1C DEB
    Semimajor Axis (a) 7028.503 km 7068.999 km
    Eccentricity (e) 0.006412 0.000745
    Inclination (i) 89.8499° 99.2706°
    RAAN 262.3049° 91.8807°
    Perigee Argument 306.0314° 273.9376°
    Mean Anomaly (M) 53.4974° 237.9505°
    Apogee 695.432 km 696.126 km
    Perigee 605.300 km 685.598 km
    Orbit Epoch 2026-10-28T16:01:01+0000 2026-10-29T22:15:20+0000

    USA 57 & FENGYUN 1C DEB Collision Probability (Pc) Trend

    USA 57 & FENGYUN 1C DEB Collision Probability (Pc) TrendNot Available

    USA 57 & FENGYUN 1C DEB Miss Distance (Miss Distance) Trend

    USA 57 & FENGYUN 1C DEB Miss Distance (Miss Distance) TrendNot Available

    USA 57Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    USA 57Collision Probability Trend

    Object 1 Probability TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with USA 57

    No nearby objects data