Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    5.627037E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T05:03:52+0800
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    1 Object 1

    AOE ID 60479
    NORAD ID 60479
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 64444
    NORAD ID 64444
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter TOMORROW-S1 STARLINK-34399
    Time of Closest Approach 2026-10-21T13:12:46+0000
    Collision Probability (Pc) 5.627037E-6
    Conjunction Distance (km) 1.512 km
    Relative Speed (km/s) 11.878 km/s
    Conjunction Risk Parameters R (Radial): -1.329 | I (In-track): -0.457 | C (Cross-track): -0.555
    Collision Risk Index (CRI) 0.5
    X Position (km) -3726.568 -3725.617
    Position Y (km) -1709.12 -1708.194
    Position Z (km) 5467.025 5466.3
    Velocity X (km/s) -6.111 3.156
    Velocity Y (km/s) -1.007 -6.957
    Velocity Z (km/s) -4.47 -0.023

    Orbital Parameters 国际轨道数据源

    Parameter TOMORROW-S1 STARLINK-34399
    Semimajor Axis (a) 6840.899 km 6840.835 km
    Eccentricity (e) 0.000342 0.000196
    Inclination (i) 97.3666° 53.1579°
    RAAN 12.1419° 125.0096°
    Perigee Argument 137.7611° 89.9013°
    Mean Anomaly (M) 222.3897° 270.2214°
    Apogee 465.105 km 464.040 km
    Perigee 460.419 km 461.356 km
    Orbit Epoch 2026-10-18T23:37:28+0000 2026-10-19T06:06:32+0000

    TOMORROW-S1 & STARLINK-34399 Collision Probability (Pc) Trend

    TOMORROW-S1 & STARLINK-34399 Collision Probability (Pc) TrendNot Available

    TOMORROW-S1 & STARLINK-34399 Miss Distance (Miss Distance) Trend

    TOMORROW-S1 & STARLINK-34399 Miss Distance (Miss Distance) TrendNot Available

    TOMORROW-S1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34399Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TOMORROW-S1Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34399Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TOMORROW-S1

    No nearby objects data