Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.059347E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T20:22:10+0800
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    1 Object 1

    AOE ID 51756
    NORAD ID 51756
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 51877
    NORAD ID 51877
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3513 STARLINK-3556
    Time of Closest Approach 2026-10-29T21:16:15+0000
    Collision Probability (Pc) 9.059347E-7
    Conjunction Distance (km) 2.535 km
    Relative Speed (km/s) 4.9 km/s
    Conjunction Risk Parameters R (Radial): -0.311 | I (In-track): -2.381 | C (Cross-track): 0.81
    Collision Risk Index (CRI) 0.34
    X Position (km) -1509.494 -1511.784
    Position Y (km) -4065.624 -4064.565
    Position Z (km) -5297.97 -5297.729
    Velocity X (km/s) 6.108 7.428
    Velocity Y (km/s) -4.29 -0.739
    Velocity Z (km/s) 1.554 -1.554

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3513 STARLINK-3556
    Semimajor Axis (a) 6841.833 km 6840.818 km
    Eccentricity (e) 0.000219 0.000122
    Inclination (i) 53.1626° 53.1625°
    RAAN 326.8470° 14.4598°
    Perigee Argument 38.5401° 90.6058°
    Mean Anomaly (M) 321.5758° 269.5085°
    Apogee 465.198 km 463.519 km
    Perigee 462.194 km 461.843 km
    Orbit Epoch 2026-10-27T13:18:47+0000 2026-10-27T11:53:11+0000

    STARLINK-3513 & STARLINK-3556 Collision Probability (Pc) Trend

    STARLINK-3513 & STARLINK-3556 Collision Probability (Pc) TrendNot Available

    STARLINK-3513 & STARLINK-3556 Miss Distance (Miss Distance) Trend

    STARLINK-3513 & STARLINK-3556 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3513Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-3556Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3513Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3556Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3513

    No nearby objects data