Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.986337E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T11:23:28+0800
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    1 Object 1

    AOE ID 52480
    NORAD ID 52480
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 61779
    NORAD ID 61779
    Object Type PAYLOAD
    Country
    CIS CIS

    Conjunction Constraints

    Parameter STARLINK-3839 MSU ALTAIR
    Time of Closest Approach 2026-09-04T09:54:14+0000
    Collision Probability (Pc) 1.986337E-6
    Conjunction Distance (km) 2.318 km
    Relative Speed (km/s) 14.252 km/s
    Conjunction Risk Parameters R (Radial): -1.685 | I (In-track): 0.571 | C (Cross-track): 1.485
    Collision Risk Index (CRI) 0.41
    X Position (km) 1817.034 1816.373
    Position Y (km) -4942.737 -4944.911
    Position Z (km) -4369.596 -4370.051
    Velocity X (km/s) 6.632 -2.834
    Velocity Y (km/s) -0.813 4.072
    Velocity Z (km/s) 3.681 -5.786

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3839 MSU ALTAIR
    Semimajor Axis (a) 6837.873 km 6829.216 km
    Eccentricity (e) 0.000125 0.001327
    Inclination (i) 53.1616° 97.2902°
    RAAN 342.0174° 114.4809°
    Perigee Argument 82.6635° 34.8023°
    Mean Anomaly (M) 277.4510° 325.4087°
    Apogee 460.588 km 460.139 km
    Perigee 458.884 km 442.019 km
    Orbit Epoch 2026-09-01T13:23:45+0000 2026-09-02T14:48:00+0000

    STARLINK-3839 & MSU ALTAIR Collision Probability (Pc) Trend

    STARLINK-3839 & MSU ALTAIR Collision Probability (Pc) TrendNot Available

    STARLINK-3839 & MSU ALTAIR Miss Distance (Miss Distance) Trend

    STARLINK-3839 & MSU ALTAIR Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3839Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    MSU ALTAIRMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3839Collision Probability Trend

    Object 1 Probability TrendNot Available

    MSU ALTAIRCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3839

    No nearby objects data