Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.771038E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T05:08:40+0800
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    1 Object 1

    AOE ID 55421
    NORAD ID 55421
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    Name PTD-4
    AOE ID 60565
    NORAD ID 60565
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5598 PTD-4
    Time of Closest Approach 2026-10-20T11:01:00+0000
    Collision Probability (Pc) 1.771038E-6
    Conjunction Distance (km) 2.481 km
    Relative Speed (km/s) 14.665 km/s
    Conjunction Risk Parameters R (Radial): 0.292 | I (In-track): 0.675 | C (Cross-track): -2.368
    Collision Risk Index (CRI) 0.4
    X Position (km) 3066.051 3067.467
    Position Y (km) 561.107 559.266
    Position Z (km) 6107.896 6107.025
    Velocity X (km/s) 3.365 -5.982
    Velocity Y (km/s) 6.449 -3.373
    Velocity Z (km/s) -2.278 3.308

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5598 PTD-4
    Semimajor Axis (a) 6862.512 km 6863.342 km
    Eccentricity (e) 0.000256 0.000187
    Inclination (i) 70.0007° 97.6927°
    RAAN 238.4337° 24.2549°
    Perigee Argument 264.1311° 341.4122°
    Mean Anomaly (M) 333.5632° 18.7047°
    Apogee 486.134 km 486.490 km
    Perigee 482.616 km 483.920 km
    Orbit Epoch 2026-10-19T12:00:02+0000 2026-10-19T01:42:30+0000

    STARLINK-5598 & PTD-4 Collision Probability (Pc) Trend

    STARLINK-5598 & PTD-4 Collision Probability (Pc) TrendNot Available

    STARLINK-5598 & PTD-4 Miss Distance (Miss Distance) Trend

    STARLINK-5598 & PTD-4 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5598Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    PTD-4Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5598Collision Probability Trend

    Object 1 Probability TrendNot Available

    PTD-4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5598

    No nearby objects data