Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.940478E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T08:55:27+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 48837
    NORAD ID 48837
    Object Type DEBRIS
    Country
    US US

    Conjunction Constraints

    Parameter ALICE FALCON 9 DEB
    Time of Closest Approach 2026-10-20T23:26:12+0000
    Collision Probability (Pc) 1.940478E-6
    Conjunction Distance (km) 2.388 km
    Relative Speed (km/s) 15.134 km/s
    Conjunction Risk Parameters R (Radial): -0.196 | I (In-track): -0.174 | C (Cross-track): -2.372
    Collision Risk Index (CRI) 0.41
    X Position (km) -4634.761 -4636.382
    Position Y (km) -3641.219 -3640.199
    Position Z (km) -3618.795 -3617.371
    Velocity X (km/s) -0.365 1.095
    Velocity Y (km/s) 5.453 -5.945
    Velocity Z (km/s) -5.266 4.582

    Orbital Parameters 国际轨道数据源

    Parameter ALICE FALCON 9 DEB
    Semimajor Axis (a) 6911.286 km 6903.690 km
    Eccentricity (e) 0.016539 0.001249
    Inclination (i) 120.4609° 53.0260°
    RAAN 52.8774° 253.1392°
    Perigee Argument 124.2625° 142.8461°
    Mean Anomaly (M) 237.4227° 217.3397°
    Apogee 647.458 km 534.178 km
    Perigee 418.840 km 516.928 km
    Orbit Epoch 2026-10-19T06:47:37+0000 2026-10-19T07:59:47+0000

    ALICE & FALCON 9 DEB Collision Probability (Pc) Trend

    ALICE & FALCON 9 DEB Collision Probability (Pc) TrendNot Available

    ALICE & FALCON 9 DEB Miss Distance (Miss Distance) Trend

    ALICE & FALCON 9 DEB Miss Distance (Miss Distance) TrendNot Available

    ALICEMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FALCON 9 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ALICECollision Probability Trend

    Object 1 Probability TrendNot Available

    FALCON 9 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ALICE

    No nearby objects data