Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    8.655277E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T15:56:20+0800
    View CDM
    Download CDM 1.0

    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 2026-09-06T04:54:43+0000
    Collision Probability (Pc) 8.655277E-6
    Conjunction Distance (km) 1.348 km
    Relative Speed (km/s) 12.748 km/s
    Conjunction Risk Parameters R (Radial): 1.313 | I (In-track): -0.161 | C (Cross-track): -0.26
    Collision Risk Index (CRI) 0.54
    X Position (km) 4170.355 4171.327
    Position Y (km) -160.54 -160.785
    Position Z (km) 5410.334 5411.236
    Velocity X (km/s) 1.427 -5.971
    Velocity Y (km/s) 7.453 -1.396
    Velocity Z (km/s) -0.877 4.551

    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