Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    8.579248E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T22:04:53+0800
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    1 Object 1

    AOE ID 64070
    NORAD ID 64070
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 68128
    NORAD ID 68128
    Object Type ROCKET BODY
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-11713 FIREFLY ALPHA R/B
    Time of Closest Approach 2026-09-05T14:06:45+0000
    Collision Probability (Pc) 8.579248E-6
    Conjunction Distance (km) 1.402 km
    Relative Speed (km/s) 15.236 km/s
    Conjunction Risk Parameters R (Radial): -1.08 | I (In-track): 0.121 | C (Cross-track): 0.884
    Collision Risk Index (CRI) 0.54
    X Position (km) 3179.762 3179.921
    Position Y (km) -5334.706 -5333.734
    Position Z (km) -2606.91 -2605.913
    Velocity X (km/s) 4.314 -2.686
    Velocity Y (km/s) 4.681 -4.388
    Velocity Z (km/s) -4.322 5.721

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-11713 FIREFLY ALPHA R/B
    Semimajor Axis (a) 6734.564 km 6732.999 km
    Eccentricity (e) 0.000188 0.000435
    Inclination (i) 43.0002° 123.0879°
    RAAN 97.7036° 281.5089°
    Perigee Argument 263.3104° 12.9819°
    Mean Anomaly (M) 96.7550° 347.1360°
    Apogee 357.694 km 357.794 km
    Perigee 355.160 km 351.930 km
    Orbit Epoch 2026-09-04T23:28:15+0000 2026-09-04T19:54:31+0000

    STARLINK-11713 & FIREFLY ALPHA R/B Collision Probability (Pc) Trend

    STARLINK-11713 & FIREFLY ALPHA R/B Collision Probability (Pc) TrendNot Available

    STARLINK-11713 & FIREFLY ALPHA R/B Miss Distance (Miss Distance) Trend

    STARLINK-11713 & FIREFLY ALPHA R/B Miss Distance (Miss Distance) TrendNot Available

    STARLINK-11713Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FIREFLY ALPHA R/BMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-11713Collision Probability Trend

    Object 1 Probability TrendNot Available

    FIREFLY ALPHA R/BCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-11713

    No nearby objects data