Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.555082E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T00:55:31+0800
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    1 Object 1

    AOE ID 26365
    NORAD ID 26365
    Object Type PAYLOAD
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 59496
    NORAD ID 59496
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SIMSAT 1 STARLINK-31728
    Time of Closest Approach 2026-10-21T06:37:06+0000
    Collision Probability (Pc) 3.555082E-6
    Conjunction Distance (km) 1.673 km
    Relative Speed (km/s) 9.583 km/s
    Conjunction Risk Parameters R (Radial): 1.631 | I (In-track): 0.293 | C (Cross-track): 0.231
    Collision Risk Index (CRI) 0.46
    X Position (km) -2030.918 -2031.242
    Position Y (km) -4627.678 -4629.05
    Position Z (km) 4629.692 4630.593
    Velocity X (km/s) -1.46 6.669
    Velocity Y (km/s) -4.969 -3.633
    Velocity Z (km/s) -5.6 -0.705

    Orbital Parameters 国际轨道数据源

    Parameter SIMSAT 1 STARLINK-31728
    Semimajor Axis (a) 6858.324 km 6861.111 km
    Eccentricity (e) 0.000619 0.000189
    Inclination (i) 86.3405° 43.0012°
    RAAN 70.8070° 158.3782°
    Perigee Argument 219.8128° 256.6933°
    Mean Anomaly (M) 140.2666° 103.3708°
    Apogee 484.432 km 484.270 km
    Perigee 475.942 km 481.678 km
    Orbit Epoch 2026-10-18T23:01:38+0000 2026-10-19T00:50:23+0000

    SIMSAT 1 & STARLINK-31728 Collision Probability (Pc) Trend

    SIMSAT 1 & STARLINK-31728 Collision Probability (Pc) TrendNot Available

    SIMSAT 1 & STARLINK-31728 Miss Distance (Miss Distance) Trend

    SIMSAT 1 & STARLINK-31728 Miss Distance (Miss Distance) TrendNot Available

    SIMSAT 1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31728Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SIMSAT 1Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31728Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SIMSAT 1

    No nearby objects data