Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.081648E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T18:27:34+0800
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    1 Object 1

    AOE ID 25575
    NORAD ID 25575
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 67796
    NORAD ID 67796
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter ISS (UNITY) DRAGON FREEDOM 3
    Time of Closest Approach 2026-09-08T02:45:41+0000
    Collision Probability (Pc) 7.081648E-7
    Conjunction Distance (km) 1.519 km
    Relative Speed (km/s) 0.002 km/s
    Conjunction Risk Parameters R (Radial): 0.001 | I (In-track): -1.517 | C (Cross-track): -0.064
    Collision Risk Index (CRI) 0.32
    X Position (km) 791.201 792.262
    Position Y (km) 6478.773 6478.959
    Position Z (km) -1907.081 -1906.01
    Velocity X (km/s) -5.112 -5.112
    Velocity Y (km/s) -1.018 -1.017
    Velocity Z (km/s) -5.61 -5.611

    Orbital Parameters 国际轨道数据源

    Parameter ISS (UNITY) DRAGON FREEDOM 3
    Semimajor Axis (a) 6797.808 km 6797.819 km
    Eccentricity (e) 0.000504 0.000505
    Inclination (i) 51.6310° 51.6313°
    RAAN 264.2007° 266.1160°
    Perigee Argument 108.5564° 107.1671°
    Mean Anomaly (M) 251.5973° 252.9870°
    Apogee 423.098 km 423.113 km
    Perigee 416.244 km 416.251 km
    Orbit Epoch 2026-09-05T04:13:20+0000 2026-09-04T18:55:55+0000

    ISS (UNITY) & DRAGON FREEDOM 3 Collision Probability (Pc) Trend

    ISS (UNITY) & DRAGON FREEDOM 3 Collision Probability (Pc) TrendNot Available

    ISS (UNITY) & DRAGON FREEDOM 3 Miss Distance (Miss Distance) Trend

    ISS (UNITY) & DRAGON FREEDOM 3 Miss Distance (Miss Distance) TrendNot Available

    ISS (UNITY)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    DRAGON FREEDOM 3Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ISS (UNITY)Collision Probability Trend

    Object 1 Probability TrendNot Available

    DRAGON FREEDOM 3Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ISS (UNITY)

    No nearby objects data