Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.836275E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T03:09:36+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 59431
    NORAD ID 59431
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 68753
    NORAD ID 68753
    Object Type ROCKET BODY
    Country
    CIS CIS

    Conjunction Constraints

    Parameter STARLINK-31613 SL-4 R/B
    Time of Closest Approach 2026-10-27T21:34:36+0000
    Collision Probability (Pc) 1.836275E-6
    Conjunction Distance (km) 2.44 km
    Relative Speed (km/s) 14.797 km/s
    Conjunction Risk Parameters R (Radial): -0.524 | I (In-track): 0.595 | C (Cross-track): -2.306
    Collision Risk Index (CRI) 0.4
    X Position (km) 2016.403 2018.392
    Position Y (km) -6389.59 -6388.622
    Position Z (km) 1375.144 1374.116
    Velocity X (km/s) 4.093 -0.604
    Velocity Y (km/s) 2.565 -1.825
    Velocity Z (km/s) 5.916 -7.411

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31613 SL-4 R/B
    Semimajor Axis (a) 6840.513 km 6872.908 km
    Eccentricity (e) 0.000946 0.006252
    Inclination (i) 53.1407° 98.2874°
    RAAN 281.7166° 105.0614°
    Perigee Argument 283.0562° 134.8166°
    Mean Anomaly (M) 76.9384° 225.8175°
    Apogee 468.845 km 537.741 km
    Perigee 455.907 km 451.801 km
    Orbit Epoch 2026-10-27T05:52:55+0000 2026-10-27T05:05:02+0000

    STARLINK-31613 & SL-4 R/B Collision Probability (Pc) Trend

    STARLINK-31613 & SL-4 R/B Collision Probability (Pc) TrendNot Available

    STARLINK-31613 & SL-4 R/B Miss Distance (Miss Distance) Trend

    STARLINK-31613 & SL-4 R/B Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31613Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SL-4 R/BMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-31613Collision Probability Trend

    Object 1 Probability TrendNot Available

    SL-4 R/BCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31613

    No nearby objects data