Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.955889E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T15:45:46+0800
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    1 Object 1

    AOE ID 51994
    NORAD ID 51994
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 68321
    NORAD ID 68321
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3647 STARLINK-36987
    Time of Closest Approach 2026-09-05T16:14:03+0000
    Collision Probability (Pc) 7.955889E-7
    Conjunction Distance (km) 2.878 km
    Relative Speed (km/s) 5.339 km/s
    Conjunction Risk Parameters R (Radial): 2.723 | I (In-track): -0.873 | C (Cross-track): -0.327
    Collision Risk Index (CRI) 0.33
    X Position (km) -4266.372 -4267.856
    Position Y (km) 999.97 1001.275
    Position Z (km) -5256.361 -5258.453
    Velocity X (km/s) 0.366 -3.626
    Velocity Y (km/s) -7.423 -6.486
    Velocity Z (km/s) -1.71 1.709

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3647 STARLINK-36987
    Semimajor Axis (a) 6837.921 km 6840.809 km
    Eccentricity (e) 0.000100 0.000123
    Inclination (i) 53.1602° 53.1568°
    RAAN 292.7118° 242.0863°
    Perigee Argument 88.9752° 90.7212°
    Mean Anomaly (M) 271.1366° 269.3931°
    Apogee 460.471 km 463.514 km
    Perigee 459.097 km 461.830 km
    Orbit Epoch 2026-09-03T13:08:30+0000 2026-09-03T06:43:01+0000

    STARLINK-3647 & STARLINK-36987 Collision Probability (Pc) Trend

    STARLINK-3647 & STARLINK-36987 Collision Probability (Pc) TrendNot Available

    STARLINK-3647 & STARLINK-36987 Miss Distance (Miss Distance) Trend

    STARLINK-3647 & STARLINK-36987 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3647Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36987Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3647Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36987Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3647

    No nearby objects data