Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    6.058131E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T23:34:52+0800
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    1 Object 1

    AOE ID 63242
    NORAD ID 63242
    Object Type PAYLOAD
    Country
    IT IT
    VS

    2 Object 2

    AOE ID 66724
    NORAD ID 66724
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HERMES-1 FLOCK 4H 21
    Time of Closest Approach 2026-09-06T20:21:54+0000
    Collision Probability (Pc) 6.058131E-6
    Conjunction Distance (km) 1.554 km
    Relative Speed (km/s) 15.101 km/s
    Conjunction Risk Parameters R (Radial): 0.079 | I (In-track): -0.208 | C (Cross-track): 1.538
    Collision Risk Index (CRI) 0.51
    X Position (km) 5290.904 5291.937
    Position Y (km) -4258.728 -4257.567
    Position Z (km) 1090.545 1090.564
    Velocity X (km/s) 0.316 -1.564
    Velocity Y (km/s) -1.525 -0.018
    Velocity Z (km/s) -7.454 7.453

    Orbital Parameters 国际轨道数据源

    Parameter HERMES-1 FLOCK 4H 21
    Semimajor Axis (a) 6877.320 km 6879.181 km
    Eccentricity (e) 0.000528 0.000345
    Inclination (i) 97.3773° 97.4119°
    RAAN 137.3019° 318.7513°
    Perigee Argument 267.5997° 58.8769°
    Mean Anomaly (M) 92.4635° 301.2806°
    Apogee 502.815 km 503.421 km
    Perigee 495.551 km 498.667 km
    Orbit Epoch 2026-09-04T02:55:59+0000 2026-09-03T03:56:25+0000

    HERMES-1 & FLOCK 4H 21 Collision Probability (Pc) Trend

    HERMES-1 & FLOCK 4H 21 Collision Probability (Pc) TrendNot Available

    HERMES-1 & FLOCK 4H 21 Miss Distance (Miss Distance) Trend

    HERMES-1 & FLOCK 4H 21 Miss Distance (Miss Distance) TrendNot Available

    HERMES-1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FLOCK 4H 21Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HERMES-1Collision Probability Trend

    Object 1 Probability TrendNot Available

    FLOCK 4H 21Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HERMES-1

    No nearby objects data