Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    5.504146E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T03:07:33+0800
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    1 Object 1

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

    2 Object 2

    Name FEMTO-1
    AOE ID 68419
    NORAD ID 68419
    Object Type PAYLOAD
    Country
    BG BG

    Conjunction Constraints

    Parameter BLACKJACK ACES-3 FEMTO-1
    Time of Closest Approach 2026-10-28T02:03:59+0000
    Collision Probability (Pc) 5.504146E-5
    Conjunction Distance (km) 0.812 km
    Relative Speed (km/s) 15.085 km/s
    Conjunction Risk Parameters R (Radial): -0.37 | I (In-track): 0.086 | C (Cross-track): -0.717
    Collision Risk Index (CRI) 0.7
    X Position (km) -1458.004 -1458.631
    Position Y (km) -6729.287 -6728.772
    Position Z (km) 232.276 232.274
    Velocity X (km/s) -1.044 -0.911
    Velocity Y (km/s) -0.043 0.468
    Velocity Z (km/s) -7.536 7.539

    Orbital Parameters 国际轨道数据源

    Parameter BLACKJACK ACES-3 FEMTO-1
    Semimajor Axis (a) 6886.722 km 6885.201 km
    Eccentricity (e) 0.000036 0.000282
    Inclination (i) 97.6402° 97.4724°
    RAAN 76.5502° 257.2402°
    Perigee Argument 140.1676° 124.1369°
    Mean Anomaly (M) 219.9584° 236.0133°
    Apogee 508.832 km 509.003 km
    Perigee 508.338 km 505.125 km
    Orbit Epoch 2026-10-27T03:09:12+0000 2026-10-27T07:05:37+0000

    BLACKJACK ACES-3 & FEMTO-1 Collision Probability (Pc) Trend

    BLACKJACK ACES-3 & FEMTO-1 Collision Probability (Pc) TrendNot Available

    BLACKJACK ACES-3 & FEMTO-1 Miss Distance (Miss Distance) Trend

    BLACKJACK ACES-3 & FEMTO-1 Miss Distance (Miss Distance) TrendNot Available

    BLACKJACK ACES-3Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FEMTO-1Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    BLACKJACK ACES-3Collision Probability Trend

    Object 1 Probability TrendNot Available

    FEMTO-1Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with BLACKJACK ACES-3

    No nearby objects data