Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.218995E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T15:57:05+0800
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    1 Object 1

    AOE ID 52640
    NORAD ID 52640
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 59206
    NORAD ID 59206
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3977 STARLINK-31247
    Time of Closest Approach 2026-09-05T14:29:48+0000
    Collision Probability (Pc) 1.218995E-6
    Conjunction Distance (km) 2.795 km
    Relative Speed (km/s) 10.716 km/s
    Conjunction Risk Parameters R (Radial): 2.631 | I (In-track): -0.668 | C (Cross-track): 0.664
    Collision Risk Index (CRI) 0.37
    X Position (km) -5647.625 -5649.972
    Position Y (km) -1064.479 -1063.962
    Position Z (km) 3696.583 3698.009
    Velocity X (km/s) 3.864 -1.847
    Velocity Y (km/s) -4.815 -5.889
    Velocity Z (km/s) 4.502 -4.501

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3977 STARLINK-31247
    Semimajor Axis (a) 6837.872 km 6840.888 km
    Eccentricity (e) 0.000115 0.000082
    Inclination (i) 53.1590° 53.1600°
    RAAN 173.4624° 47.3866°
    Perigee Argument 85.2366° 80.7235°
    Mean Anomaly (M) 274.8768° 90.3351°
    Apogee 460.520 km 463.315 km
    Perigee 458.950 km 462.187 km
    Orbit Epoch 2026-09-03T02:56:51+0000 2026-09-03T22:00:02+0000

    STARLINK-3977 & STARLINK-31247 Collision Probability (Pc) Trend

    STARLINK-3977 & STARLINK-31247 Collision Probability (Pc) TrendNot Available

    STARLINK-3977 & STARLINK-31247 Miss Distance (Miss Distance) Trend

    STARLINK-3977 & STARLINK-31247 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3977Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31247Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3977Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31247Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3977

    No nearby objects data