Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.252166E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T01:56:48+0800
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    1 Object 1

    AOE ID 49419
    NORAD ID 49419
    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-3120 MSU ALTAIR
    Time of Closest Approach 2026-09-12T05:09:52+0000
    Collision Probability (Pc) 3.252166E-6
    Conjunction Distance (km) 1.577 km
    Relative Speed (km/s) 6.348 km/s
    Conjunction Risk Parameters R (Radial): -0.452 | I (In-track): -1.373 | C (Cross-track): -0.626
    Collision Risk Index (CRI) 0.45
    X Position (km) 3180.438 3180.713
    Position Y (km) -5358.835 -5358.456
    Position Z (km) -2824.157 -2825.662
    Velocity X (km/s) 3.111 -2.505
    Velocity Y (km/s) 4.6 2.139
    Velocity Z (km/s) -5.236 -6.879

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3120 MSU ALTAIR
    Semimajor Axis (a) 6837.870 km 6828.764 km
    Eccentricity (e) 0.000116 0.001227
    Inclination (i) 53.1605° 97.2886°
    RAAN 107.7113° 123.0785°
    Perigee Argument 89.7457° 5.2043°
    Mean Anomaly (M) 270.3678° 354.9328°
    Apogee 460.523 km 459.006 km
    Perigee 458.943 km 442.248 km
    Orbit Epoch 2026-09-10T17:52:50+0000 2026-09-11T06:25:28+0000

    STARLINK-3120 & MSU ALTAIR Collision Probability (Pc) Trend

    STARLINK-3120 & MSU ALTAIR Collision Probability (Pc) TrendNot Available

    STARLINK-3120 & MSU ALTAIR Miss Distance (Miss Distance) Trend

    STARLINK-3120 & MSU ALTAIR Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3120Miss 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-3120Collision Probability Trend

    Object 1 Probability TrendNot Available

    MSU ALTAIRCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3120

    No nearby objects data