Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    2.400761E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-15T10:30:48+0800
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    1 Object 1

    Name USA 283
    AOE ID 43339
    NORAD ID 43339
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 55239
    NORAD ID 55239
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter USA 283 APSTAR 6E
    Time of Closest Approach 2026-10-17T10:00:29+0000
    Collision Probability (Pc) 2.400761E-7
    Conjunction Distance (km) 2.742 km
    Relative Speed (km/s) 0.002 km/s
    Conjunction Risk Parameters R (Radial): 0.315 | I (In-track): -2.5 | C (Cross-track): 1.079
    Collision Risk Index (CRI) 0.23
    X Position (km) 27157.33 27159.041
    Position Y (km) -32255.445 -32253.594
    Position Z (km) 18.78 17.701
    Velocity X (km/s) 2.352 2.353
    Velocity Y (km/s) 1.98 1.979
    Velocity Z (km/s) 0 0

    Orbital Parameters 国际轨道数据源

    Parameter USA 283 APSTAR 6E
    Semimajor Axis (a) 42165.121 km 42164.840 km
    Eccentricity (e) 0.000016 0.000429
    Inclination (i) 0.0144° 0.0109°
    RAAN 236.4413° 214.1039°
    Perigee Argument 225.0739° 4.3014°
    Mean Anomaly (M) 223.5813° 29.4512°
    Apogee 35787.651 km 35804.796 km
    Perigee 35786.317 km 35768.610 km
    Orbit Epoch 2026-10-14T11:11:56+0000 2026-10-14T06:04:02+0000

    USA 283 & APSTAR 6E Collision Probability (Pc) Trend

    USA 283 & APSTAR 6E Collision Probability (Pc) TrendNot Available

    USA 283 & APSTAR 6E Miss Distance (Miss Distance) Trend

    USA 283 & APSTAR 6E Miss Distance (Miss Distance) TrendNot Available

    USA 283Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    APSTAR 6EMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    USA 283Collision Probability Trend

    Object 1 Probability TrendNot Available

    APSTAR 6ECollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with USA 283

    No nearby objects data