Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.113352E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-06T00:29:23+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 48424
    NORAD ID 48424
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter ALICE YAOGAN-30 Y
    Time of Closest Approach 2026-09-07T10:02:15+0000
    Collision Probability (Pc) 1.113352E-6
    Conjunction Distance (km) 2.946 km
    Relative Speed (km/s) 10.292 km/s
    Conjunction Risk Parameters R (Radial): 1.495 | I (In-track): -1.846 | C (Cross-track): 1.741
    Collision Risk Index (CRI) 0.36
    X Position (km) 2114.207 2113.237
    Position Y (km) 6600.29 6598.953
    Position Z (km) -209.018 -211.456
    Velocity X (km/s) 3.637 -5.961
    Velocity Y (km/s) -1.231 1.774
    Velocity Z (km/s) -6.529 -4.348

    Orbital Parameters 国际轨道数据源

    Parameter ALICE YAOGAN-30 Y
    Semimajor Axis (a) 6914.107 km 6935.887 km
    Eccentricity (e) 0.017022 0.000400
    Inclination (i) 120.4638° 34.9953°
    RAAN 245.8167° 262.9099°
    Perigee Argument 80.0501° 175.3619°
    Mean Anomaly (M) 281.9734° 184.7127°
    Apogee 653.665 km 560.525 km
    Perigee 418.275 km 554.975 km
    Orbit Epoch 2026-09-05T11:10:16+0000 2026-09-05T06:12:41+0000

    ALICE & YAOGAN-30 Y Collision Probability (Pc) Trend

    ALICE & YAOGAN-30 Y Collision Probability (Pc) TrendNot Available

    ALICE & YAOGAN-30 Y Miss Distance (Miss Distance) Trend

    ALICE & YAOGAN-30 Y Miss Distance (Miss Distance) TrendNot Available

    ALICEMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YAOGAN-30 YMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ALICECollision Probability Trend

    Object 1 Probability TrendNot Available

    YAOGAN-30 YCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ALICE

    No nearby objects data