Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.477899E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T10:28:59+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 58321
    NORAD ID 58321
    Object Type PAYLOAD
    Country
    FR FR
    VS

    2 Object 2

    AOE ID 68912
    NORAD ID 68912
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter PROTOMETHEE STARLINK-37477
    Time of Closest Approach 2026-09-05T14:29:46+0000
    Collision Probability (Pc) 2.477899E-6
    Conjunction Distance (km) 2.044 km
    Relative Speed (km/s) 12.839 km/s
    Conjunction Risk Parameters R (Radial): 1.758 | I (In-track): 0.554 | C (Cross-track): -0.881
    Collision Risk Index (CRI) 0.43
    X Position (km) -677.243 -676.475
    Position Y (km) 1476.995 1477.818
    Position Z (km) -6654.812 -6656.517
    Velocity X (km/s) 6.343 1.103
    Velocity Y (km/s) -3.938 7.379
    Velocity Z (km/s) -1.522 1.527

    Orbital Parameters 国际轨道数据源

    Parameter PROTOMETHEE STARLINK-37477
    Semimajor Axis (a) 6846.865 km 6843.685 km
    Eccentricity (e) 0.000618 0.000184
    Inclination (i) 97.3717° 97.2860°
    RAAN 323.6821° 79.5346°
    Perigee Argument 243.7239° 95.6193°
    Mean Anomaly (M) 116.3369° 264.5260°
    Apogee 472.958 km 466.810 km
    Perigee 464.498 km 464.286 km
    Orbit Epoch 2026-09-02T14:50:53+0000 2026-09-02T02:16:07+0000

    PROTOMETHEE & STARLINK-37477 Collision Probability (Pc) Trend

    PROTOMETHEE & STARLINK-37477 Collision Probability (Pc) TrendNot Available

    PROTOMETHEE & STARLINK-37477 Miss Distance (Miss Distance) Trend

    PROTOMETHEE & STARLINK-37477 Miss Distance (Miss Distance) TrendNot Available

    PROTOMETHEEMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37477Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    PROTOMETHEECollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37477Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with PROTOMETHEE

    No nearby objects data