Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.381295E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T13:19:42+0800
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    1 Object 1

    AOE ID 56955
    NORAD ID 56955
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 63927
    NORAD ID 63927
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter BLACKJACK ACES-2 STARLINK-33956
    Time of Closest Approach 2026-09-07T14:02:25+0000
    Collision Probability (Pc) 1.381295E-6
    Conjunction Distance (km) 2.906 km
    Relative Speed (km/s) 14.578 km/s
    Conjunction Risk Parameters R (Radial): -2.535 | I (In-track): -0.406 | C (Cross-track): 1.358
    Collision Risk Index (CRI) 0.38
    X Position (km) 2288.695 2288.117
    Position Y (km) 2069.235 2067.127
    Position Z (km) -6167.455 -6165.541
    Velocity X (km/s) 6.321 -7.143
    Velocity Y (km/s) 2.676 1.379
    Velocity Z (km/s) 3.246 -2.188

    Orbital Parameters 国际轨道数据源

    Parameter BLACKJACK ACES-2 STARLINK-33956
    Semimajor Axis (a) 6887.943 km 6901.086 km
    Eccentricity (e) 0.000225 0.000317
    Inclination (i) 97.6308° 70.0003°
    RAAN 23.7915° 182.2688°
    Perigee Argument 79.0105° 270.4451°
    Mean Anomaly (M) 281.1382° 180.8196°
    Apogee 511.356 km 525.136 km
    Perigee 508.256 km 520.762 km
    Orbit Epoch 2026-09-04T19:54:33+0000 2026-09-04T22:00:02+0000

    BLACKJACK ACES-2 & STARLINK-33956 Collision Probability (Pc) Trend

    BLACKJACK ACES-2 & STARLINK-33956 Collision Probability (Pc) TrendNot Available

    BLACKJACK ACES-2 & STARLINK-33956 Miss Distance (Miss Distance) Trend

    BLACKJACK ACES-2 & STARLINK-33956 Miss Distance (Miss Distance) TrendNot Available

    BLACKJACK ACES-2Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33956Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    BLACKJACK ACES-2Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33956Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with BLACKJACK ACES-2

    No nearby objects data