Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.030339E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T19:25:27+0800
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    1 Object 1

    AOE ID 43477
    NORAD ID 43477
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 66888
    NORAD ID 66888
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter GRACE-FO 2 STARLINK-35919
    Time of Closest Approach 2026-09-07T18:09:37+0000
    Collision Probability (Pc) 1.030339E-6
    Conjunction Distance (km) 2.955 km
    Relative Speed (km/s) 9.027 km/s
    Conjunction Risk Parameters R (Radial): 2.718 | I (In-track): 0.931 | C (Cross-track): -0.69
    Collision Risk Index (CRI) 0.35
    X Position (km) -4246.359 -4248.687
    Position Y (km) -398.203 -399.141
    Position Z (km) -5351.674 -5353.232
    Velocity X (km/s) -5.91 -0.928
    Velocity Y (km/s) -0.769 -7.456
    Velocity Z (km/s) 4.748 1.293

    Orbital Parameters 国际轨道数据源

    Parameter GRACE-FO 2 STARLINK-35919
    Semimajor Axis (a) 6827.894 km 6840.841 km
    Eccentricity (e) 0.001223 0.000092
    Inclination (i) 88.9984° 53.1598°
    RAAN 186.9702° 270.9684°
    Perigee Argument 143.3363° 90.9811°
    Mean Anomaly (M) 216.8732° 269.1298°
    Apogee 458.105 km 463.337 km
    Perigee 441.409 km 462.071 km
    Orbit Epoch 2026-09-05T03:57:09+0000 2026-09-04T10:46:30+0000

    GRACE-FO 2 & STARLINK-35919 Collision Probability (Pc) Trend

    GRACE-FO 2 & STARLINK-35919 Collision Probability (Pc) TrendNot Available

    GRACE-FO 2 & STARLINK-35919 Miss Distance (Miss Distance) Trend

    GRACE-FO 2 & STARLINK-35919 Miss Distance (Miss Distance) TrendNot Available

    GRACE-FO 2Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35919Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    GRACE-FO 2Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35919Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with GRACE-FO 2

    No nearby objects data