Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.922325E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T16:27:29+0800
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    1 Object 1

    AOE ID 58883
    NORAD ID 58883
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 66133
    NORAD ID 66133
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-31209 STARLINK-35520
    Time of Closest Approach 2026-09-13T12:11:37+0000
    Collision Probability (Pc) 9.922325E-7
    Conjunction Distance (km) 2.831 km
    Relative Speed (km/s) 7.681 km/s
    Conjunction Risk Parameters R (Radial): 0.375 | I (In-track): -2.425 | C (Cross-track): -1.409
    Collision Risk Index (CRI) 0.35
    X Position (km) -2015.958 -2018.386
    Position Y (km) 4303.775 4302.346
    Position Z (km) -4928.319 -4928.051
    Velocity X (km/s) -7.138 -4.791
    Velocity Y (km/s) -0.293 -5.299
    Velocity Z (km/s) 2.666 -2.666

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31209 STARLINK-35520
    Semimajor Axis (a) 6840.900 km 6840.828 km
    Eccentricity (e) 0.000158 0.000153
    Inclination (i) 53.1591° 53.1586°
    RAAN 186.1768° 255.8835°
    Perigee Argument 92.5370° 68.5547°
    Mean Anomaly (M) 267.5813° 291.5619°
    Apogee 463.842 km 463.740 km
    Perigee 461.684 km 461.642 km
    Orbit Epoch 2026-09-09T05:17:49+0000 2026-09-10T23:43:59+0000

    STARLINK-31209 & STARLINK-35520 Collision Probability (Pc) Trend

    STARLINK-31209 & STARLINK-35520 Collision Probability (Pc) TrendNot Available

    STARLINK-31209 & STARLINK-35520 Miss Distance (Miss Distance) Trend

    STARLINK-31209 & STARLINK-35520 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31209Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35520Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-31209Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35520Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31209

    No nearby objects data