Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.245688E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T22:02:10+0800
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    1 Object 1

    AOE ID 63833
    NORAD ID 63833
    Object Type PAYLOAD
    Country
    IT IT
    ← VS →

    2 Object 2

    AOE ID 65187
    NORAD ID 65187
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HERMES 4 STARLINK-34915
    Time of Closest Approach 2026-10-19T21:40:33+0000
    Collision Probability (Pc) 1.245688E-6
    Conjunction Distance (km) 1.928 km
    Relative Speed (km/s) 3.246 km/s
    Conjunction Risk Parameters R (Radial): 1.096 | I (In-track): 1.55 | C (Cross-track): 0.34
    Collision Risk Index (CRI) 0.37
    X Position (km) 72.837 71.248
    Position Y (km) 890.256 890.281
    Position Z (km) 6776.856 6775.765
    Velocity X (km/s) 7.591 7.243
    Velocity Y (km/s) 0.797 -2.402
    Velocity Z (km/s) -0.187 0.239

    Orbital Parameters 国际轨道数据源

    Parameter HERMES 4 STARLINK-34915
    Semimajor Axis (a) 6846.057 km 6843.666 km
    Eccentricity (e) 0.000462 0.000255
    Inclination (i) 97.3707° 97.2833°
    RAAN 185.4436° 160.4445°
    Perigee Argument 107.5329° 94.0226°
    Mean Anomaly (M) 252.6419° 266.1308°
    Apogee 471.086 km 467.275 km
    Perigee 464.754 km 463.783 km
    Orbit Epoch 2026-10-19T04:02:34+0000 2026-10-18T21:48:06+0000

    HERMES 4 & STARLINK-34915 Collision Probability (Pc) Trend

    HERMES 4 & STARLINK-34915 Collision Probability (Pc) TrendNot Available

    HERMES 4 & STARLINK-34915 Miss Distance (Miss Distance) Trend

    HERMES 4 & STARLINK-34915 Miss Distance (Miss Distance) TrendNot Available

    HERMES 4Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34915Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HERMES 4Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34915Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HERMES 4

    No nearby objects data