Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.046862E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-18T00:34:31+0800
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    1 Object 1

    AOE ID 1778
    NORAD ID 1778
    Object Type PAYLOAD
    Country
    FR FR
    ← VS →

    2 Object 2

    AOE ID 66763
    NORAD ID 66763
    Object Type PAYLOAD
    Country
    ESA ESA

    Conjunction Constraints

    Parameter A-1 (ASTERIX) HYDROGNSS-2
    Time of Closest Approach 2026-10-18T00:27:35+0000
    Collision Probability (Pc) 1.046862E-6
    Conjunction Distance (km) 2.78 km
    Relative Speed (km/s) 8.101 km/s
    Conjunction Risk Parameters R (Radial): -1.302 | I (In-track): 2.062 | C (Cross-track): 1.335
    Collision Risk Index (CRI) 0.35
    X Position (km) 6909.844 6908.549
    Position Y (km) -20.067 -19.112
    Position Z (km) -14.832 -12.566
    Velocity X (km/s) 0.139 0.01
    Velocity Y (km/s) 6.501 -0.979
    Velocity Z (km/s) 4.431 7.536

    Orbital Parameters 国际轨道数据源

    Parameter A-1 (ASTERIX) HYDROGNSS-2
    Semimajor Axis (a) 7450.623 km 6908.264 km
    Eccentricity (e) 0.073907 0.000965
    Inclination (i) 34.2587° 97.4079°
    RAAN 3.5952° 359.2503°
    Perigee Argument 342.3397° 296.4645°
    Mean Anomaly (M) 15.2782° 63.5595°
    Apogee 1623.142 km 536.794 km
    Perigee 521.830 km 523.460 km
    Orbit Epoch 2026-10-17T06:42:16+0000 2026-10-17T10:09:56+0000

    A-1 (ASTERIX) & HYDROGNSS-2 Collision Probability (Pc) Trend

    A-1 (ASTERIX) & HYDROGNSS-2 Collision Probability (Pc) TrendNot Available

    A-1 (ASTERIX) & HYDROGNSS-2 Miss Distance (Miss Distance) Trend

    A-1 (ASTERIX) & HYDROGNSS-2 Miss Distance (Miss Distance) TrendNot Available

    A-1 (ASTERIX)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    HYDROGNSS-2Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    A-1 (ASTERIX)Collision Probability Trend

    Object 1 Probability TrendNot Available

    HYDROGNSS-2Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with A-1 (ASTERIX)

    No nearby objects data