Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    9.165327E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-15T07:52:32+0800
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    1 Object 1

    Name DRUMS
    AOE ID 49401
    NORAD ID 49401
    Object Type PAYLOAD
    Country
    JP JP
    ← VS →

    2 Object 2

    AOE ID 53672
    NORAD ID 53672
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter DRUMS STARLINK-4428
    Time of Closest Approach 2026-10-16T01:13:10+0000
    Collision Probability (Pc) 9.165327E-5
    Conjunction Distance (km) 0.685 km
    Relative Speed (km/s) 14.863 km/s
    Conjunction Risk Parameters R (Radial): 0.084 | I (In-track): -0.127 | C (Cross-track): -0.666
    Collision Risk Index (CRI) 0.74
    X Position (km) 3773.181 3773.552
    Position Y (km) -1986.698 -1986.126
    Position Z (km) -5418.489 -5418.546
    Velocity X (km/s) 4.44 -5.894
    Velocity Y (km/s) -4.105 1.342
    Velocity Z (km/s) 4.59 -4.599

    Orbital Parameters 国际轨道数据源

    Parameter DRUMS STARLINK-4428
    Semimajor Axis (a) 6879.654 km 6887.075 km
    Eccentricity (e) 0.001515 0.000124
    Inclination (i) 97.3181° 97.2831°
    RAAN 320.9245° 159.8579°
    Perigee Argument 168.9340° 62.7747°
    Mean Anomaly (M) 191.2232° 49.0705°
    Apogee 511.944 km 509.791 km
    Perigee 491.090 km 508.085 km
    Orbit Epoch 2026-10-14T02:05:47+0000 2026-10-14T06:00:04+0000

    DRUMS & STARLINK-4428 Collision Probability (Pc) Trend

    DRUMS & STARLINK-4428 Collision Probability (Pc) TrendNot Available

    DRUMS & STARLINK-4428 Miss Distance (Miss Distance) Trend

    DRUMS & STARLINK-4428 Miss Distance (Miss Distance) TrendNot Available

    DRUMSMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4428Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DRUMSCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4428Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DRUMS

    No nearby objects data