Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    3.900693E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T17:04:10+0800
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    1 Object 1

    AOE ID 53729
    NORAD ID 53729
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58945
    NORAD ID 58945
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4651 STARLINK-31359
    Time of Closest Approach 2026-09-05T01:08:49+0000
    Collision Probability (Pc) 3.900693E-7
    Conjunction Distance (km) 2.492 km
    Relative Speed (km/s) 0.673 km/s
    Conjunction Risk Parameters R (Radial): -2.435 | I (In-track): 0.527 | C (Cross-track): 0.02
    Collision Risk Index (CRI) 0.27
    X Position (km) -1451.62 -1452.63
    Position Y (km) -3835.153 -3836.331
    Position Z (km) 5461.743 5463.693
    Velocity X (km/s) 7.234 7.042
    Velocity Y (km/s) -2.452 -2.955
    Velocity Z (km/s) 0.2 -0.202

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4651 STARLINK-31359
    Semimajor Axis (a) 6837.864 km 6840.852 km
    Eccentricity (e) 0.000135 0.000227
    Inclination (i) 53.1613° 53.1620°
    RAAN 166.4386° 161.9662°
    Perigee Argument 90.2311° 106.8377°
    Mean Anomaly (M) 269.8846° 253.2875°
    Apogee 460.651 km 464.270 km
    Perigee 458.803 km 461.160 km
    Orbit Epoch 2026-09-04T04:27:23+0000 2026-09-03T19:02:49+0000

    STARLINK-4651 & STARLINK-31359 Collision Probability (Pc) Trend

    STARLINK-4651 & STARLINK-31359 Collision Probability (Pc) TrendNot Available

    STARLINK-4651 & STARLINK-31359 Miss Distance (Miss Distance) Trend

    STARLINK-4651 & STARLINK-31359 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4651Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31359Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4651Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31359Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4651

    No nearby objects data