Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.600549E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T22:51:28+0800
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    1 Object 1

    AOE ID 58685
    NORAD ID 58685
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 66819
    NORAD ID 66819
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-31121 STARLINK-35989
    Time of Closest Approach 2026-09-15T03:08:27+0000
    Collision Probability (Pc) 3.600549E-6
    Conjunction Distance (km) 1.282 km
    Relative Speed (km/s) 2.65 km/s
    Conjunction Risk Parameters R (Radial): 0.068 | I (In-track): 1.261 | C (Cross-track): 0.225
    Collision Risk Index (CRI) 0.46
    X Position (km) 4796.983 4797.368
    Position Y (km) 1727.4 1726.178
    Position Z (km) -4594.788 -4594.744
    Velocity X (km/s) -1.708 -3.375
    Velocity Y (km/s) 7.359 6.758
    Velocity Z (km/s) 0.985 -0.985

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31121 STARLINK-35989
    Semimajor Axis (a) 6861.220 km 6861.137 km
    Eccentricity (e) 0.000162 0.000139
    Inclination (i) 43.0038° 43.0047°
    RAAN 113.4255° 141.8234°
    Perigee Argument 258.7428° 272.9912°
    Mean Anomaly (M) 101.3242° 87.0781°
    Apogee 484.194 km 483.952 km
    Perigee 481.972 km 482.048 km
    Orbit Epoch 2026-09-11T21:01:19+0000 2026-09-12T01:49:44+0000

    STARLINK-31121 & STARLINK-35989 Collision Probability (Pc) Trend

    STARLINK-31121 & STARLINK-35989 Collision Probability (Pc) TrendNot Available

    STARLINK-31121 & STARLINK-35989 Miss Distance (Miss Distance) Trend

    STARLINK-31121 & STARLINK-35989 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31121Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35989Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-31121Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35989Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31121

    No nearby objects data