Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.284036E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T10:43:39+0800
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    1 Object 1

    AOE ID 58459
    NORAD ID 58459
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58555
    NORAD ID 58555
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-30977 HONGHU 2
    Time of Closest Approach 2026-09-05T12:16:02+0000
    Collision Probability (Pc) 1.284036E-6
    Conjunction Distance (km) 2.963 km
    Relative Speed (km/s) 13.391 km/s
    Conjunction Risk Parameters R (Radial): 2.883 | I (In-track): -0.313 | C (Cross-track): -0.607
    Collision Risk Index (CRI) 0.37
    X Position (km) 3302.248 3300.275
    Position Y (km) 4396.785 4395.075
    Position Z (km) -4108.568 -4107.168
    Velocity X (km/s) -4.446 -1.747
    Velocity Y (km/s) 5.664 -4.331
    Velocity Z (km/s) 2.489 -6.005

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-30977 HONGHU 2
    Semimajor Axis (a) 6861.194 km 6834.417 km
    Eccentricity (e) 0.000068 0.004245
    Inclination (i) 43.0018° 97.2842°
    RAAN 124.0592° 235.7055°
    Perigee Argument 202.9371° 2.7045°
    Mean Anomaly (M) 157.1450° 357.4421°
    Apogee 483.527 km 485.291 km
    Perigee 482.587 km 427.269 km
    Orbit Epoch 2026-09-02T09:12:37+0000 2026-09-02T14:33:20+0000

    STARLINK-30977 & HONGHU 2 Collision Probability (Pc) Trend

    STARLINK-30977 & HONGHU 2 Collision Probability (Pc) TrendNot Available

    STARLINK-30977 & HONGHU 2 Miss Distance (Miss Distance) Trend

    STARLINK-30977 & HONGHU 2 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-30977Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    HONGHU 2Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-30977Collision Probability Trend

    Object 1 Probability TrendNot Available

    HONGHU 2Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-30977

    No nearby objects data