Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    9.581743E-6
    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 2026-10-28T00:29:09+0000
    Collision Probability (Pc) 9.581743E-6
    Conjunction Distance (km) 1.354 km
    Relative Speed (km/s) 15.085 km/s
    Conjunction Risk Parameters R (Radial): -0.361 | I (In-track): -0.17 | C (Cross-track): 1.294
    Collision Risk Index (CRI) 0.55
    X Position (km) -1466.792 -1465.44
    Position Y (km) -6727.623 -6727.548
    Position Z (km) 225.291 225.276
    Velocity X (km/s) -1.043 -0.912
    Velocity Y (km/s) -0.034 0.462
    Velocity Z (km/s) -7.537 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