Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.48913E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T09:12:32+0800
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    1 Object 1

    AOE ID 51735
    NORAD ID 51735
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53178
    NORAD ID 53178
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3517 STARLINK-4280
    Time of Closest Approach 2026-10-20T13:39:15+0000
    Collision Probability (Pc) 1.48913E-6
    Conjunction Distance (km) 2.521 km
    Relative Speed (km/s) 11.481 km/s
    Conjunction Risk Parameters R (Radial): 2.505 | I (In-track): 0.174 | C (Cross-track): 0.219
    Collision Risk Index (CRI) 0.38
    X Position (km) -5450.7 -5452.564
    Position Y (km) -3013.788 -3015.137
    Position Z (km) -2838.919 -2839.946
    Velocity X (km/s) 4.512 0.353
    Velocity Y (km/s) -3.249 -5.548
    Velocity Z (km/s) -5.226 5.224

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3517 STARLINK-4280
    Semimajor Axis (a) 6840.950 km 6843.349 km
    Eccentricity (e) 0.000164 0.000131
    Inclination (i) 53.1612° 53.1591°
    RAAN 15.2279° 234.9847°
    Perigee Argument 87.7447° 96.1064°
    Mean Anomaly (M) 272.3744° 264.0088°
    Apogee 463.935 km 466.110 km
    Perigee 461.691 km 464.314 km
    Orbit Epoch 2026-10-19T05:28:21+0000 2026-10-19T06:30:28+0000

    STARLINK-3517 & STARLINK-4280 Collision Probability (Pc) Trend

    STARLINK-3517 & STARLINK-4280 Collision Probability (Pc) TrendNot Available

    STARLINK-3517 & STARLINK-4280 Miss Distance (Miss Distance) Trend

    STARLINK-3517 & STARLINK-4280 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3517Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4280Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3517Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4280Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3517

    No nearby objects data