Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.29696E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-02T08:30:35+0800
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    1 Object 1

    AOE ID 60210
    NORAD ID 60210
    Object Type ROCKET BODY
    Country
    US US
    VS

    2 Object 2

    AOE ID 63115
    NORAD ID 63115
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FIREFLY ALPHA R/B STARLINK-11597
    Time of Closest Approach 2026-09-02T01:04:46+0000
    Collision Probability (Pc) 2.29696E-6
    Conjunction Distance (km) 2.153 km
    Relative Speed (km/s) 13.889 km/s
    Conjunction Risk Parameters R (Radial): -1.007 | I (In-track): -0.816 | C (Cross-track): 1.718
    Collision Risk Index (CRI) 0.42
    X Position (km) 2474.854 2476.888
    Position Y (km) -5137.335 -5137.933
    Position Z (km) 3572.02 3571.648
    Velocity X (km/s) 0.729 5.087
    Velocity Y (km/s) -4.134 4.748
    Velocity Z (km/s) -6.452 3.295

    Orbital Parameters 国际轨道数据源

    Parameter FIREFLY ALPHA R/B STARLINK-11597
    Semimajor Axis (a) 6729.152 km 6734.641 km
    Eccentricity (e) 0.001498 0.000142
    Inclination (i) 97.1980° 43.0006°
    RAAN 110.7597° 257.4066°
    Perigee Argument 247.4454° 300.3551°
    Mean Anomaly (M) 112.5225° 59.7176°
    Apogee 361.098 km 357.461 km
    Perigee 340.932 km 355.547 km
    Orbit Epoch 2026-09-01T15:17:28+0000 2026-09-01T09:36:12+0000

    FIREFLY ALPHA R/B & STARLINK-11597 Collision Probability (Pc) Trend

    FIREFLY ALPHA R/B & STARLINK-11597 Collision Probability (Pc) TrendNot Available

    FIREFLY ALPHA R/B & STARLINK-11597 Miss Distance (Miss Distance) Trend

    FIREFLY ALPHA R/B & STARLINK-11597 Miss Distance (Miss Distance) TrendNot Available

    FIREFLY ALPHA R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-11597Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FIREFLY ALPHA R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-11597Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FIREFLY ALPHA R/B

    No nearby objects data