Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    4.369391E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T22:21:00+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 2026-09-08T03:58:49+0000
    Collision Probability (Pc) 4.369391E-6
    Conjunction Distance (km) 1.722 km
    Relative Speed (km/s) 14.928 km/s
    Conjunction Risk Parameters R (Radial): 0.26 | I (In-track): -0.277 | C (Cross-track): -1.678
    Collision Risk Index (CRI) 0.48
    X Position (km) 4171.646 4170.398
    Position Y (km) -3492.674 -3493.848
    Position Z (km) -4301.257 -4301.093
    Velocity X (km/s) -4.417 2.766
    Velocity Y (km/s) 1.906 -3.914
    Velocity Z (km/s) -5.852 5.868

    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