Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.163337E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T15:32:04+0800
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    1 Object 1

    AOE ID 49398
    NORAD ID 49398
    Object Type UNKNOWN
    Country
    JP JP
    VS

    2 Object 2

    AOE ID 53588
    NORAD ID 53588
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter OBJECT D STARLINK-4691
    Time of Closest Approach 2026-09-04T17:12:13+0000
    Collision Probability (Pc) 1.163337E-5
    Conjunction Distance (km) 1.254 km
    Relative Speed (km/s) 13.628 km/s
    Conjunction Risk Parameters R (Radial): -0.486 | I (In-track): 0.519 | C (Cross-track): -1.032
    Collision Risk Index (CRI) 0.56
    X Position (km) 835.937 836.679
    Position Y (km) -4470.538 -4469.533
    Position Z (km) 5117.181 5117.287
    Velocity X (km/s) -2.466 7.226
    Velocity Y (km/s) 5.236 -1.145
    Velocity Z (km/s) 4.971 -2.175

    Orbital Parameters 国际轨道数据源

    Parameter OBJECT D STARLINK-4691
    Semimajor Axis (a) 6847.912 km 6853.263 km
    Eccentricity (e) 0.000669 0.000179
    Inclination (i) 97.3136° 53.1597°
    RAAN 287.2790° 161.8557°
    Perigee Argument 290.2211° 74.0540°
    Mean Anomaly (M) 69.8312° 306.4663°
    Apogee 474.353 km 476.353 km
    Perigee 465.197 km 473.899 km
    Orbit Epoch 2026-09-03T01:48:08+0000 2026-09-03T22:00:02+0000

    OBJECT D & STARLINK-4691 Collision Probability (Pc) Trend

    OBJECT D & STARLINK-4691 Collision Probability (Pc) TrendNot Available

    OBJECT D & STARLINK-4691 Miss Distance (Miss Distance) Trend

    OBJECT D & STARLINK-4691 Miss Distance (Miss Distance) TrendNot Available

    OBJECT DMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4691Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    OBJECT DCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4691Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OBJECT D

    No nearby objects data