Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.43912E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T20:38:08+0800
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    1 Object 1

    AOE ID 13121
    NORAD ID 13121
    Object Type ROCKET BODY
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 48684
    NORAD ID 48684
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SL-3 R/B STARLINK-2741
    Time of Closest Approach 2026-10-21T08:26:03+0000
    Collision Probability (Pc) 1.43912E-6
    Conjunction Distance (km) 1.97 km
    Relative Speed (km/s) 4.568 km/s
    Conjunction Risk Parameters R (Radial): 0.495 | I (In-track): 1.82 | C (Cross-track): -0.57
    Collision Risk Index (CRI) 0.38
    X Position (km) 4172.26 4171.996
    Position Y (km) -3997.712 -3998.695
    Position Z (km) -3685.266 -3683.579
    Velocity X (km/s) -1.951 1.672
    Velocity Y (km/s) 3.789 5.906
    Velocity Z (km/s) -6.324 -4.523

    Orbital Parameters 国际轨道数据源

    Parameter SL-3 R/B STARLINK-2741
    Semimajor Axis (a) 6852.158 km 6848.963 km
    Eccentricity (e) 0.000703 0.000005
    Inclination (i) 81.1850° 53.1595°
    RAAN 131.8304° 114.8433°
    Perigee Argument 224.6796° 342.8510°
    Mean Anomaly (M) 135.3874° 17.2490°
    Apogee 478.840 km 470.859 km
    Perigee 469.202 km 470.793 km
    Orbit Epoch 2026-10-20T06:24:12+0000 2026-10-19T19:26:58+0000

    SL-3 R/B & STARLINK-2741 Collision Probability (Pc) Trend

    SL-3 R/B & STARLINK-2741 Collision Probability (Pc) TrendNot Available

    SL-3 R/B & STARLINK-2741 Miss Distance (Miss Distance) Trend

    SL-3 R/B & STARLINK-2741 Miss Distance (Miss Distance) TrendNot Available

    SL-3 R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-2741Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SL-3 R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-2741Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SL-3 R/B

    No nearby objects data