Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.79042E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-01T19:21:32+0800
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    1 Object 1

    AOE ID 40143
    NORAD ID 40143
    Object Type PAYLOAD
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 66511
    NORAD ID 66511
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 21 STARLINK-35444
    Time of Closest Approach 2026-09-01T11:25:03+0000
    Collision Probability (Pc) 1.79042E-6
    Conjunction Distance (km) 2.436 km
    Relative Speed (km/s) 14.112 km/s
    Conjunction Risk Parameters R (Radial): -1.522 | I (In-track): -0.729 | C (Cross-track): 1.756
    Collision Risk Index (CRI) 0.4
    X Position (km) -1580.386 -1582.425
    Position Y (km) 6124.329 6125.63
    Position Z (km) 2647.019 2646.732
    Velocity X (km/s) 0.264 -5.404
    Velocity Y (km/s) 3.091 -3.255
    Velocity Z (km/s) -6.971 4.288

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 21 STARLINK-35444
    Semimajor Axis (a) 6862.182 km 6861.235 km
    Eccentricity (e) 0.000803 0.000143
    Inclination (i) 97.1418° 43.0024°
    RAAN 280.9952° 81.5413°
    Perigee Argument 170.1891° 269.9996°
    Mean Anomaly (M) 189.9507° 90.0692°
    Apogee 489.552 km 484.078 km
    Perigee 478.538 km 482.118 km
    Orbit Epoch 2026-08-31T23:43:31+0000 2026-08-31T19:34:30+0000

    YAOGAN 21 & STARLINK-35444 Collision Probability (Pc) Trend

    YAOGAN 21 & STARLINK-35444 Collision Probability (Pc) TrendNot Available

    YAOGAN 21 & STARLINK-35444 Miss Distance (Miss Distance) Trend

    YAOGAN 21 & STARLINK-35444 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35444Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35444Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 21

    No nearby objects data