Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.602454E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T04:39:29+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 47630
    NORAD ID 47630
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter ALICE STARLINK-1983
    Time of Closest Approach 2026-10-22T11:46:07+0000
    Collision Probability (Pc) 2.602454E-6
    Conjunction Distance (km) 1.817 km
    Relative Speed (km/s) 8.534 km/s
    Conjunction Risk Parameters R (Radial): 1.607 | I (In-track): 0.689 | C (Cross-track): 0.494
    Collision Risk Index (CRI) 0.43
    X Position (km) -2493.186 -2493.734
    Position Y (km) -6323.562 -6325.154
    Position Z (km) 678.775 678.094
    Velocity X (km/s) -3.918 4.058
    Velocity Y (km/s) 0.734 -2.258
    Velocity Z (km/s) -6.572 -6.069

    Orbital Parameters 国际轨道数据源

    Parameter ALICE STARLINK-1983
    Semimajor Axis (a) 6911.211 km 6834.437 km
    Eccentricity (e) 0.016520 0.000170
    Inclination (i) 120.4609° 53.1525°
    RAAN 56.6642° 82.3808°
    Perigee Argument 125.2569° 165.5996°
    Mean Anomaly (M) 236.4079° 194.5057°
    Apogee 647.245 km 457.464 km
    Perigee 418.903 km 455.136 km
    Orbit Epoch 2026-10-20T06:36:50+0000 2026-10-20T10:37:51+0000

    ALICE & STARLINK-1983 Collision Probability (Pc) Trend

    ALICE & STARLINK-1983 Collision Probability (Pc) TrendNot Available

    ALICE & STARLINK-1983 Miss Distance (Miss Distance) Trend

    ALICE & STARLINK-1983 Miss Distance (Miss Distance) TrendNot Available

    ALICEMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-1983Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ALICECollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-1983Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ALICE

    No nearby objects data