Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.258891E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T20:33:55+0800
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    1 Object 1

    AOE ID 51111
    NORAD ID 51111
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 59265
    NORAD ID 59265
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3173 STARLINK-31646
    Time of Closest Approach 2026-10-21T16:06:57+0000
    Collision Probability (Pc) 1.258891E-6
    Conjunction Distance (km) 2.771 km
    Relative Speed (km/s) 11.102 km/s
    Conjunction Risk Parameters R (Radial): 2.641 | I (In-track): -0.57 | C (Cross-track): 0.613
    Collision Risk Index (CRI) 0.37
    X Position (km) 5954.287 5956.627
    Position Y (km) 306.311 305.594
    Position Z (km) 3339.729 3341.025
    Velocity X (km/s) -2.986 2.448
    Velocity Y (km/s) 5.104 5.382
    Velocity Z (km/s) 4.839 -4.838

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3173 STARLINK-31646
    Semimajor Axis (a) 6837.861 km 6840.828 km
    Eccentricity (e) 0.000130 0.000226
    Inclination (i) 53.1601° 53.1595°
    RAAN 347.5953° 214.8949°
    Perigee Argument 88.8549° 79.1630°
    Mean Anomaly (M) 271.2603° 280.9627°
    Apogee 460.610 km 464.237 km
    Perigee 458.838 km 461.145 km
    Orbit Epoch 2026-10-19T15:31:26+0000 2026-10-20T03:32:40+0000

    STARLINK-3173 & STARLINK-31646 Collision Probability (Pc) Trend

    STARLINK-3173 & STARLINK-31646 Collision Probability (Pc) TrendNot Available

    STARLINK-3173 & STARLINK-31646 Miss Distance (Miss Distance) Trend

    STARLINK-3173 & STARLINK-31646 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3173Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31646Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3173Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31646Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3173

    No nearby objects data