Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.429114E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T03:00:34+0800
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    1 Object 1

    AOE ID 53409
    NORAD ID 53409
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 63368
    NORAD ID 63368
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4490 STARLINK-33578
    Time of Closest Approach 2026-10-20T22:50:05+0000
    Collision Probability (Pc) 1.429114E-6
    Conjunction Distance (km) 2.228 km
    Relative Speed (km/s) 7.194 km/s
    Conjunction Risk Parameters R (Radial): -0.614 | I (In-track): 1.886 | C (Cross-track): 1.014
    Collision Risk Index (CRI) 0.38
    X Position (km) 4200.782 4199.483
    Position Y (km) 2011.463 2013.215
    Position Z (km) -5017.912 -5017.459
    Velocity X (km/s) -5.281 -0.529
    Velocity Y (km/s) 4.925 7.202
    Velocity Z (km/s) -2.449 2.449

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4490 STARLINK-33578
    Semimajor Axis (a) 6840.879 km 6840.874 km
    Eccentricity (e) 0.000140 0.000104
    Inclination (i) 53.1570° 53.1579°
    RAAN 160.4408° 91.0121°
    Perigee Argument 94.4409° 91.7027°
    Mean Anomaly (M) 265.6753° 268.4096°
    Apogee 463.699 km 463.452 km
    Perigee 461.785 km 462.022 km
    Orbit Epoch 2026-10-19T01:59:40+0000 2026-10-18T11:43:22+0000

    STARLINK-4490 & STARLINK-33578 Collision Probability (Pc) Trend

    STARLINK-4490 & STARLINK-33578 Collision Probability (Pc) TrendNot Available

    STARLINK-4490 & STARLINK-33578 Miss Distance (Miss Distance) Trend

    STARLINK-4490 & STARLINK-33578 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4490Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33578Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4490Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33578Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4490

    No nearby objects data