Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.737709E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T00:46:13+0800
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    1 Object 1

    Name HIBARI
    AOE ID 49400
    NORAD ID 49400
    Object Type PAYLOAD
    Country
    JP JP
    ← VS →

    2 Object 2

    AOE ID 55316
    NORAD ID 55316
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HIBARI STARLINK-5257
    Time of Closest Approach 2026-10-29T12:38:26+0000
    Collision Probability (Pc) 1.737709E-5
    Conjunction Distance (km) 1.131 km
    Relative Speed (km/s) 14.43 km/s
    Conjunction Risk Parameters R (Radial): 0.779 | I (In-track): -0.272 | C (Cross-track): 0.774
    Collision Risk Index (CRI) 0.6
    X Position (km) 2861.147 2861.06
    Position Y (km) 160.312 159.652
    Position Z (km) -6228.6 -6229.514
    Velocity X (km/s) 6.703 -4.312
    Velocity Y (km/s) -1.946 6.007
    Velocity Z (km/s) 3.036 -1.826

    Orbital Parameters 国际轨道数据源

    Parameter HIBARI STARLINK-5257
    Semimajor Axis (a) 6841.620 km 6852.735 km
    Eccentricity (e) 0.001283 0.000353
    Inclination (i) 97.3079° 69.9970°
    RAAN 344.5686° 136.8340°
    Perigee Argument 90.1412° 273.6583°
    Mean Anomaly (M) 270.1301° 86.4188°
    Apogee 472.261 km 477.019 km
    Perigee 454.705 km 472.177 km
    Orbit Epoch 2026-10-27T01:26:41+0000 2026-10-27T06:11:40+0000

    HIBARI & STARLINK-5257 Collision Probability (Pc) Trend

    HIBARI & STARLINK-5257 Collision Probability (Pc) TrendNot Available

    HIBARI & STARLINK-5257 Miss Distance (Miss Distance) Trend

    HIBARI & STARLINK-5257 Miss Distance (Miss Distance) TrendNot Available

    HIBARIMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5257Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HIBARICollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5257Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HIBARI

    No nearby objects data