Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.349141E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T21:18:53+0800
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    1 Object 1

    AOE ID 56950
    NORAD ID 56950
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58848
    NORAD ID 58848
    Object Type PAYLOAD
    Country
    GB GB

    Conjunction Constraints

    Parameter BLACKJACK ACES-3 AAC-HSI-SAT3
    Time of Closest Approach 2026-09-13T11:21:06+0000
    Collision Probability (Pc) 1.349141E-6
    Conjunction Distance (km) 2.516 km
    Relative Speed (km/s) 9.653 km/s
    Conjunction Risk Parameters R (Radial): 2.142 | I (In-track): 1.023 | C (Cross-track): -0.834
    Collision Risk Index (CRI) 0.38
    X Position (km) -118.865 -120.212
    Position Y (km) -1152.861 -1153.056
    Position Z (km) 6779.981 6782.097
    Velocity X (km/s) -6.445 -5.232
    Velocity Y (km/s) -3.971 5.467
    Velocity Z (km/s) -0.786 0.838

    Orbital Parameters 国际轨道数据源

    Parameter BLACKJACK ACES-3 AAC-HSI-SAT3
    Semimajor Axis (a) 6887.706 km 6895.695 km
    Eccentricity (e) 0.000287 0.001200
    Inclination (i) 97.6332° 97.3324°
    RAAN 30.8864° 311.7632°
    Perigee Argument 90.4511° 68.8456°
    Mean Anomaly (M) 269.7052° 291.4058°
    Apogee 511.550 km 525.834 km
    Perigee 507.588 km 509.282 km
    Orbit Epoch 2026-09-11T22:33:46+0000 2026-09-12T06:28:24+0000

    BLACKJACK ACES-3 & AAC-HSI-SAT3 Collision Probability (Pc) Trend

    BLACKJACK ACES-3 & AAC-HSI-SAT3 Collision Probability (Pc) TrendNot Available

    BLACKJACK ACES-3 & AAC-HSI-SAT3 Miss Distance (Miss Distance) Trend

    BLACKJACK ACES-3 & AAC-HSI-SAT3 Miss Distance (Miss Distance) TrendNot Available

    BLACKJACK ACES-3Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    AAC-HSI-SAT3Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    BLACKJACK ACES-3Collision Probability Trend

    Object 1 Probability TrendNot Available

    AAC-HSI-SAT3Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with BLACKJACK ACES-3

    No nearby objects data