Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.376398E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T01:04:24+0800
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    1 Object 1

    AOE ID 57990
    NORAD ID 57990
    Object Type PAYLOAD
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 66749
    NORAD ID 66749
    Object Type PAYLOAD
    Country
    PL PL

    Conjunction Constraints

    Parameter YAOGAN-39 03C PIAST-S1
    Time of Closest Approach 2026-09-13T04:25:38+0000
    Collision Probability (Pc) 1.376398E-6
    Conjunction Distance (km) 2.805 km
    Relative Speed (km/s) 13.353 km/s
    Conjunction Risk Parameters R (Radial): 2.144 | I (In-track): -0.876 | C (Cross-track): -1.582
    Collision Risk Index (CRI) 0.38
    X Position (km) 5469.525 5470.132
    Position Y (km) -2897.421 -2899.383
    Position Z (km) -3012.426 -3014.336
    Velocity X (km/s) 2.04 2.395
    Velocity Y (km/s) 6.773 -2.505
    Velocity Z (km/s) -2.825 6.772

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN-39 03C PIAST-S1
    Semimajor Axis (a) 6893.359 km 6880.855 km
    Eccentricity (e) 0.001729 0.000339
    Inclination (i) 34.9892° 97.4129°
    RAAN 120.9687° 326.0495°
    Perigee Argument 190.8420° 55.1360°
    Mean Anomaly (M) 169.1922° 305.0194°
    Apogee 527.138 km 505.051 km
    Perigee 503.306 km 500.385 km
    Orbit Epoch 2026-09-11T02:27:11+0000 2026-09-10T18:07:27+0000

    YAOGAN-39 03C & PIAST-S1 Collision Probability (Pc) Trend

    YAOGAN-39 03C & PIAST-S1 Collision Probability (Pc) TrendNot Available

    YAOGAN-39 03C & PIAST-S1 Miss Distance (Miss Distance) Trend

    YAOGAN-39 03C & PIAST-S1 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN-39 03CMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    PIAST-S1Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN-39 03CCollision Probability Trend

    Object 1 Probability TrendNot Available

    PIAST-S1Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN-39 03C

    No nearby objects data