Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    5.939196E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-16T07:14:20+0800
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    1 Object 1

    AOE ID 52561
    NORAD ID 52561
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 60479
    NORAD ID 60479
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3955 TOMORROW-S1
    Time of Closest Approach 2026-10-16T16:08:50+0000
    Collision Probability (Pc) 5.939196E-6
    Conjunction Distance (km) 1.554 km
    Relative Speed (km/s) 14.678 km/s
    Conjunction Risk Parameters R (Radial): -0.869 | I (In-track): 0.346 | C (Cross-track): 1.241
    Collision Risk Index (CRI) 0.5
    X Position (km) -6377.021 -6378.152
    Position Y (km) -797.73 -796.68
    Position Z (km) -2354.081 -2353.9
    Velocity X (km/s) -1.395 2.443
    Velocity Y (km/s) -5.085 1.355
    Velocity Z (km/s) 5.518 -7.101

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3955 TOMORROW-S1
    Semimajor Axis (a) 6840.850 km 6841.072 km
    Eccentricity (e) 0.000119 0.000312
    Inclination (i) 53.1578° 97.3669°
    RAAN 208.5320° 8.3674°
    Perigee Argument 88.2731° 147.5575°
    Mean Anomaly (M) 271.8408° 212.5861°
    Apogee 463.530 km 465.069 km
    Perigee 461.896 km 460.801 km
    Orbit Epoch 2026-10-15T12:07:10+0000 2026-10-15T04:50:36+0000

    STARLINK-3955 & TOMORROW-S1 Collision Probability (Pc) Trend

    STARLINK-3955 & TOMORROW-S1 Collision Probability (Pc) TrendNot Available

    STARLINK-3955 & TOMORROW-S1 Miss Distance (Miss Distance) Trend

    STARLINK-3955 & TOMORROW-S1 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3955Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TOMORROW-S1Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3955Collision Probability Trend

    Object 1 Probability TrendNot Available

    TOMORROW-S1Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3955

    No nearby objects data