Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.612042E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T15:56:20+0800
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    1 Object 1

    AOE ID 51891
    NORAD ID 51891
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 64540
    NORAD ID 64540
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3549 ARCSTONE
    Time of Closest Approach 2026-09-06T01:00:05+0000
    Collision Probability (Pc) 1.612042E-6
    Conjunction Distance (km) 2.491 km
    Relative Speed (km/s) 12.672 km/s
    Conjunction Risk Parameters R (Radial): -2.302 | I (In-track): 0.525 | C (Cross-track): -0.79
    Collision Risk Index (CRI) 0.39
    X Position (km) -4167.402 -4165.484
    Position Y (km) 176.393 175.657
    Position Z (km) -5428.947 -5427.539
    Velocity X (km/s) -1.374 5.97
    Velocity Y (km/s) -7.455 1.377
    Velocity Z (km/s) 0.813 -4.539

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3549 ARCSTONE
    Semimajor Axis (a) 6840.800 km 6838.211 km
    Eccentricity (e) 0.000110 0.000157
    Inclination (i) 53.1585° 97.4674°
    RAAN 266.4623° 5.1293°
    Perigee Argument 80.2270° 250.3520°
    Mean Anomaly (M) 279.8857° 109.7553°
    Apogee 463.419 km 461.150 km
    Perigee 461.907 km 458.998 km
    Orbit Epoch 2026-09-03T13:57:25+0000 2026-09-03T18:48:23+0000

    STARLINK-3549 & ARCSTONE Collision Probability (Pc) Trend

    STARLINK-3549 & ARCSTONE Collision Probability (Pc) TrendNot Available

    STARLINK-3549 & ARCSTONE Miss Distance (Miss Distance) Trend

    STARLINK-3549 & ARCSTONE Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3549Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ARCSTONEMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3549Collision Probability Trend

    Object 1 Probability TrendNot Available

    ARCSTONECollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3549

    No nearby objects data