Conjunction Event Detail

    High Risk
    High collision probability. Maneuver recommended for primary asset.
    1.738984E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T11:16:20+0800
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    1 Object 1

    AOE ID 57677
    NORAD ID 57677
    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-30303 ARCSTONE
    Time of Closest Approach 2026-09-04T21:56:57+0000
    Collision Probability (Pc) 1.738984E-4
    Conjunction Distance (km) 0.497 km
    Relative Speed (km/s) 10.926 km/s
    Conjunction Risk Parameters R (Radial): -0.49 | I (In-track): 0.052 | C (Cross-track): 0.057
    Collision Risk Index (CRI) 0.8
    X Position (km) -4012.08 -4012.333
    Position Y (km) -1155.13 -1155.157
    Position Z (km) 5409.595 5410.021
    Velocity X (km/s) 0.969 -6.13
    Velocity Y (km/s) -7.525 -0.074
    Velocity Z (km/s) -0.886 -4.553

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-30303 ARCSTONE
    Semimajor Axis (a) 6841.402 km 6838.332 km
    Eccentricity (e) 0.000189 0.000153
    Inclination (i) 53.1602° 97.4679°
    RAAN 106.4146° 3.6108°
    Perigee Argument 84.5906° 258.7743°
    Mean Anomaly (M) 275.5312° 101.3328°
    Apogee 464.561 km 461.242 km
    Perigee 461.969 km 459.148 km
    Orbit Epoch 2026-09-01T21:36:08+0000 2026-09-02T06:49:42+0000

    STARLINK-30303 & ARCSTONE Collision Probability (Pc) Trend

    STARLINK-30303 & ARCSTONE Collision Probability (Pc) TrendNot Available

    STARLINK-30303 & ARCSTONE Miss Distance (Miss Distance) Trend

    STARLINK-30303 & ARCSTONE Miss Distance (Miss Distance) TrendNot Available

    STARLINK-30303Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ARCSTONEMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-30303Collision Probability Trend

    Object 1 Probability TrendNot Available

    ARCSTONECollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-30303

    No nearby objects data