Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.193184E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-17T13:25:29+0800
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    1 Object 1

    AOE ID 52630
    NORAD ID 52630
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 58321
    NORAD ID 58321
    Object Type PAYLOAD
    Country
    FR FR

    Conjunction Constraints

    Parameter STARLINK-3989 PROTOMETHEE
    Time of Closest Approach 2026-10-17T07:34:33+0000
    Collision Probability (Pc) 1.193184E-6
    Conjunction Distance (km) 2.418 km
    Relative Speed (km/s) 6.927 km/s
    Conjunction Risk Parameters R (Radial): 1.387 | I (In-track): 1.761 | C (Cross-track): -0.905
    Collision Risk Index (CRI) 0.37
    X Position (km) -5769.981 -5770.102
    Position Y (km) -348.392 -349.015
    Position Z (km) -3681.711 -3684.044
    Velocity X (km/s) 3.2 3.963
    Velocity Y (km/s) -5.236 1.4
    Velocity Z (km/s) -4.525 -6.357

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3989 PROTOMETHEE
    Semimajor Axis (a) 6848.844 km 6845.342 km
    Eccentricity (e) 0.000118 0.000913
    Inclination (i) 53.1616° 97.3675°
    RAAN 338.4642° 7.8281°
    Perigee Argument 85.0072° 92.5646°
    Mean Anomaly (M) 275.1063° 267.6641°
    Apogee 471.513 km 473.454 km
    Perigee 469.901 km 460.956 km
    Orbit Epoch 2026-10-16T13:23:04+0000 2026-10-16T22:49:06+0000

    STARLINK-3989 & PROTOMETHEE Collision Probability (Pc) Trend

    STARLINK-3989 & PROTOMETHEE Collision Probability (Pc) TrendNot Available

    STARLINK-3989 & PROTOMETHEE Miss Distance (Miss Distance) Trend

    STARLINK-3989 & PROTOMETHEE Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3989Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    PROTOMETHEEMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3989Collision Probability Trend

    Object 1 Probability TrendNot Available

    PROTOMETHEECollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3989

    No nearby objects data