Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.397371E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T13:36:53+0800
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    1 Object 1

    AOE ID 53409
    NORAD ID 53409
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 65370
    NORAD ID 65370
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4490 STARLINK-34870
    Time of Closest Approach 2026-09-14T14:42:01+0000
    Collision Probability (Pc) 7.397371E-7
    Conjunction Distance (km) 2.953 km
    Relative Speed (km/s) 4.928 km/s
    Conjunction Risk Parameters R (Radial): 0.519 | I (In-track): 2.752 | C (Cross-track): 0.939
    Collision Risk Index (CRI) 0.32
    X Position (km) -1093.702 -1096.432
    Position Y (km) -4199.606 -4198.555
    Position Z (km) -5295.294 -5294.891
    Velocity X (km/s) 6.501 7.463
    Velocity Y (km/s) -3.663 0.022
    Velocity Z (km/s) 1.563 -1.564

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4490 STARLINK-34870
    Semimajor Axis (a) 6840.882 km 6840.775 km
    Eccentricity (e) 0.000115 0.000104
    Inclination (i) 53.1602° 53.1609°
    RAAN 336.1354° 22.5043°
    Perigee Argument 81.6606° 80.3607°
    Mean Anomaly (M) 278.4527° 279.7512°
    Apogee 463.532 km 463.348 km
    Perigee 461.958 km 461.928 km
    Orbit Epoch 2026-09-11T11:59:27+0000 2026-09-11T18:22:37+0000

    STARLINK-4490 & STARLINK-34870 Collision Probability (Pc) Trend

    STARLINK-4490 & STARLINK-34870 Collision Probability (Pc) TrendNot Available

    STARLINK-4490 & STARLINK-34870 Miss Distance (Miss Distance) Trend

    STARLINK-4490 & STARLINK-34870 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4490Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34870Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4490Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34870Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4490

    No nearby objects data