Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    9.424313E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T23:18:04+0800
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    1 Object 1

    AOE ID 54763
    NORAD ID 54763
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 59881
    NORAD ID 59881
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5191 PREFIRE-2
    Time of Closest Approach 2026-09-04T19:46:03+0000
    Collision Probability (Pc) 9.424313E-6
    Conjunction Distance (km) 1.343 km
    Relative Speed (km/s) 14.105 km/s
    Conjunction Risk Parameters R (Radial): -0.031 | I (In-track): -0.491 | C (Cross-track): -1.248
    Collision Risk Index (CRI) 0.54
    X Position (km) 525.873 526.964
    Position Y (km) -5074.068 -5073.505
    Position Z (km) -4621.504 -4622.045
    Velocity X (km/s) 6.431 -1.835
    Velocity Y (km/s) -2.348 4.87
    Velocity Z (km/s) 3.313 -5.547

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5191 PREFIRE-2
    Semimajor Axis (a) 6878.545 km 6879.391 km
    Eccentricity (e) 0.000167 0.001042
    Inclination (i) 53.1591° 97.3995°
    RAAN 321.3314° 101.9416°
    Perigee Argument 56.3829° 293.6428°
    Mean Anomaly (M) 342.2590° 66.3714°
    Apogee 501.557 km 508.419 km
    Perigee 499.259 km 494.089 km
    Orbit Epoch 2026-09-04T06:00:02+0000 2026-09-04T01:25:46+0000

    STARLINK-5191 & PREFIRE-2 Collision Probability (Pc) Trend

    STARLINK-5191 & PREFIRE-2 Collision Probability (Pc) TrendNot Available

    STARLINK-5191 & PREFIRE-2 Miss Distance (Miss Distance) Trend

    STARLINK-5191 & PREFIRE-2 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5191Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    PREFIRE-2Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5191Collision Probability Trend

    Object 1 Probability TrendNot Available

    PREFIRE-2Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5191

    No nearby objects data