Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.797185E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-25T19:36:38+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 68211
    NORAD ID 68211
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HERMES 4 STARLINK-37120
    Time of Closest Approach 2026-10-25T13:59:27+0000
    Collision Probability (Pc) 3.797185E-6
    Conjunction Distance (km) 1.261 km
    Relative Speed (km/s) 2.635 km/s
    Conjunction Risk Parameters R (Radial): 0.16 | I (In-track): -1.231 | C (Cross-track): -0.214
    Collision Risk Index (CRI) 0.47
    X Position (km) -59.564 -58.313
    Position Y (km) 884.03 884.048
    Position Z (km) 6777.28 6777.128
    Velocity X (km/s) 7.476 7.558
    Velocity Y (km/s) 1.549 -1.062
    Velocity Z (km/s) -0.136 0.204

    Orbital Parameters 国际轨道数据源

    Parameter HERMES 4 STARLINK-37120
    Semimajor Axis (a) 6845.773 km 6843.699 km
    Eccentricity (e) 0.000474 0.000213
    Inclination (i) 97.3719° 97.2827°
    RAAN 189.9320° 170.3082°
    Perigee Argument 98.8616° 65.0809°
    Mean Anomaly (M) 261.3162° 295.0655°
    Apogee 470.879 km 467.017 km
    Perigee 464.393 km 464.107 km
    Orbit Epoch 2026-10-23T16:09:28+0000 2026-10-24T01:35:11+0000

    HERMES 4 & STARLINK-37120 Collision Probability (Pc) Trend

    HERMES 4 & STARLINK-37120 Collision Probability (Pc) TrendNot Available

    HERMES 4 & STARLINK-37120 Miss Distance (Miss Distance) Trend

    HERMES 4 & STARLINK-37120 Miss Distance (Miss Distance) TrendNot Available

    HERMES 4Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37120Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HERMES 4Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37120Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HERMES 4

    No nearby objects data