Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.901433E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T10:25:32+0800
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    1 Object 1

    Name ALICE
    AOE ID 39467
    NORAD ID 39467
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 59206
    NORAD ID 59206
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter ALICE STARLINK-31247
    Time of Closest Approach 2026-09-03T16:49:07+0000
    Collision Probability (Pc) 2.901433E-6
    Conjunction Distance (km) 2.004 km
    Relative Speed (km/s) 15.251 km/s
    Conjunction Risk Parameters R (Radial): -1.928 | I (In-track): -0.076 | C (Cross-track): 0.535
    Collision Risk Index (CRI) 0.44
    X Position (km) -144.277 -144.699
    Position Y (km) 5041.107 5042.783
    Position Z (km) 4609.751 4610.765
    Velocity X (km/s) 5.164 -6.117
    Velocity Y (km/s) 3.994 -3.186
    Velocity Z (km/s) -4.048 3.284

    Orbital Parameters 国际轨道数据源

    Parameter ALICE STARLINK-31247
    Semimajor Axis (a) 6914.302 km 6841.337 km
    Eccentricity (e) 0.017032 0.000097
    Inclination (i) 120.4633° 53.1605°
    RAAN 232.1944° 53.6192°
    Perigee Argument 76.4180° 98.2967°
    Mean Anomaly (M) 285.5799° 261.8146°
    Apogee 653.933 km 463.865 km
    Perigee 418.397 km 462.535 km
    Orbit Epoch 2026-09-01T21:21:45+0000 2026-09-02T13:59:37+0000

    ALICE & STARLINK-31247 Collision Probability (Pc) Trend

    ALICE & STARLINK-31247 Collision Probability (Pc) TrendNot Available

    ALICE & STARLINK-31247 Miss Distance (Miss Distance) Trend

    ALICE & STARLINK-31247 Miss Distance (Miss Distance) TrendNot Available

    ALICEMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31247Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ALICECollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31247Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ALICE

    No nearby objects data