Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    4.508412E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T18:18:04+0800
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    1 Object 1

    AOE ID 66737
    NORAD ID 66737
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    Name SELENE
    AOE ID 69020
    NORAD ID 69020
    Object Type PAYLOAD
    Country
    GR GR

    Conjunction Constraints

    Parameter FLOCK 4H 34 SELENE
    Time of Closest Approach 2026-09-04T19:43:09+0000
    Collision Probability (Pc) 4.508412E-5
    Conjunction Distance (km) 0.864 km
    Relative Speed (km/s) 15.093 km/s
    Conjunction Risk Parameters R (Radial): -0.735 | I (In-track): -0.047 | C (Cross-track): 0.45
    Collision Risk Index (CRI) 0.68
    X Position (km) -5290.298 -5290.011
    Position Y (km) 4090.859 4090.066
    Position Z (km) 1623.711 1623.525
    Velocity X (km/s) -0.799 2.035
    Velocity Y (km/s) 1.896 -0.3
    Velocity Z (km/s) -7.329 7.331

    Orbital Parameters 国际轨道数据源

    Parameter FLOCK 4H 34 SELENE
    Semimajor Axis (a) 6879.824 km 6882.121 km
    Eccentricity (e) 0.000349 0.000584
    Inclination (i) 97.4172° 97.3921°
    RAAN 319.3421° 143.4485°
    Perigee Argument 59.9210° 72.7245°
    Mean Anomaly (M) 300.2371° 287.4630°
    Apogee 504.087 km 508.005 km
    Perigee 499.287 km 499.963 km
    Orbit Epoch 2026-09-03T16:09:25+0000 2026-09-04T03:51:57+0000

    FLOCK 4H 34 & SELENE Collision Probability (Pc) Trend

    FLOCK 4H 34 & SELENE Collision Probability (Pc) TrendNot Available

    FLOCK 4H 34 & SELENE Miss Distance (Miss Distance) Trend

    FLOCK 4H 34 & SELENE Miss Distance (Miss Distance) TrendNot Available

    FLOCK 4H 34Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SELENEMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FLOCK 4H 34Collision Probability Trend

    Object 1 Probability TrendNot Available

    SELENECollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FLOCK 4H 34

    No nearby objects data