Conjunction Event Detail

    High Risk
    High collision probability. Maneuver recommended for primary asset.
    3.994016E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T23:48:40+0800
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    1 Object 1

    AOE ID 23605
    NORAD ID 23605
    Object Type PAYLOAD
    Country
    FR FR
    VS

    2 Object 2

    AOE ID 65612
    NORAD ID 65612
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HELIOS 1A STARLINK-35154
    Time of Closest Approach 2026-09-08T05:34:30+0000
    Collision Probability (Pc) 3.994016E-4
    Conjunction Distance (km) 0.355 km
    Relative Speed (km/s) 14.927 km/s
    Conjunction Risk Parameters R (Radial): -0.304 | I (In-track): 0.044 | C (Cross-track): -0.175
    Collision Risk Index (CRI) 0.87
    X Position (km) 4172.12 4171.816
    Position Y (km) -3485.903 -3485.884
    Position Z (km) -4306.357 -4306.176
    Velocity X (km/s) -4.424 2.775
    Velocity Y (km/s) 1.904 -3.915
    Velocity Z (km/s) -5.847 5.863

    Orbital Parameters 国际轨道数据源

    Parameter HELIOS 1A STARLINK-35154
    Semimajor Axis (a) 6926.288 km 6927.621 km
    Eccentricity (e) 0.001310 0.000213
    Inclination (i) 98.1838° 97.2821°
    RAAN 143.5213° 311.4256°
    Perigee Argument 120.0280° 118.0422°
    Mean Anomaly (M) 240.2247° 242.1021°
    Apogee 557.226 km 550.962 km
    Perigee 539.076 km 548.006 km
    Orbit Epoch 2026-09-05T06:26:59+0000 2026-09-05T04:22:39+0000

    HELIOS 1A & STARLINK-35154 Collision Probability (Pc) Trend

    HELIOS 1A & STARLINK-35154 Collision Probability (Pc) TrendNot Available

    HELIOS 1A & STARLINK-35154 Miss Distance (Miss Distance) Trend

    HELIOS 1A & STARLINK-35154 Miss Distance (Miss Distance) TrendNot Available

    HELIOS 1AMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35154Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HELIOS 1ACollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35154Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HELIOS 1A

    No nearby objects data