Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.020501E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T19:04:40+0800
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    1 Object 1

    Name USA 76
    AOE ID 21808
    NORAD ID 21808
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 63470
    NORAD ID 63470
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter USA 76 STARLINK-33637
    Time of Closest Approach 2026-10-21T04:17:05+0000
    Collision Probability (Pc) 2.020501E-6
    Conjunction Distance (km) 2.094 km
    Relative Speed (km/s) 10.17 km/s
    Conjunction Risk Parameters R (Radial): -2.081 | I (In-track): -0.206 | C (Cross-track): 0.088
    Collision Risk Index (CRI) 0.41
    X Position (km) -5344.573 -5343.071
    Position Y (km) -1516.224 -1515.603
    Position Z (km) 4020.546 4019.226
    Velocity X (km/s) 5.202 0.027
    Velocity Y (km/s) -3.075 -7.152
    Velocity Z (km/s) 5.093 -2.653

    Orbital Parameters 国际轨道数据源

    Parameter USA 76 STARLINK-33637
    Semimajor Axis (a) 7410.574 km 6861.188 km
    Eccentricity (e) 0.088265 0.000043
    Inclination (i) 63.2969° 42.9998°
    RAAN 180.8183° 78.3632°
    Perigee Argument 76.8111° 327.9223°
    Mean Anomaly (M) 292.9782° 32.1603°
    Apogee 1686.529 km 483.343 km
    Perigee 378.345 km 482.759 km
    Orbit Epoch 2026-10-18T19:40:17+0000 2026-10-19T03:06:44+0000

    USA 76 & STARLINK-33637 Collision Probability (Pc) Trend

    USA 76 & STARLINK-33637 Collision Probability (Pc) TrendNot Available

    USA 76 & STARLINK-33637 Miss Distance (Miss Distance) Trend

    USA 76 & STARLINK-33637 Miss Distance (Miss Distance) TrendNot Available

    USA 76Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33637Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    USA 76Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33637Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with USA 76

    No nearby objects data