Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    5.543244E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T21:34:55+0800
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    1 Object 1

    AOE ID 45212
    NORAD ID 45212
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58878
    NORAD ID 58878
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-1231 STARLINK-31300
    Time of Closest Approach 2026-09-13T08:42:26+0000
    Collision Probability (Pc) 5.543244E-6
    Conjunction Distance (km) 1.315 km
    Relative Speed (km/s) 5.895 km/s
    Conjunction Risk Parameters R (Radial): 0.843 | I (In-track): -0.929 | C (Cross-track): -0.392
    Collision Risk Index (CRI) 0.5
    X Position (km) 1231.794 1232.612
    Position Y (km) -4275.717 -4274.91
    Position Z (km) 5186.884 5186.244
    Velocity X (km/s) 6.167 7.388
    Velocity Y (km/s) 4.087 -0.219
    Velocity Z (km/s) 1.903 -1.932

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-1231 STARLINK-31300
    Semimajor Axis (a) 6842.904 km 6840.872 km
    Eccentricity (e) 0.000393 0.000167
    Inclination (i) 53.0367° 53.1574°
    RAAN 229.6310° 172.5876°
    Perigee Argument 31.2433° 112.2164°
    Mean Anomaly (M) 328.8801° 247.9016°
    Apogee 467.459 km 463.879 km
    Perigee 462.075 km 461.591 km
    Orbit Epoch 2026-09-12T07:22:24+0000 2026-09-12T04:05:54+0000

    STARLINK-1231 & STARLINK-31300 Collision Probability (Pc) Trend

    STARLINK-1231 & STARLINK-31300 Collision Probability (Pc) TrendNot Available

    STARLINK-1231 & STARLINK-31300 Miss Distance (Miss Distance) Trend

    STARLINK-1231 & STARLINK-31300 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-1231Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31300Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-1231Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31300Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-1231

    No nearby objects data