Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.058315E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-18T22:36:02+0800
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    1 Object 1

    AOE ID 68753
    NORAD ID 68753
    Object Type ROCKET BODY
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 69481
    NORAD ID 69481
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SL-4 R/B STARLINK-37727
    Time of Closest Approach 2026-10-19T10:00:39+0000
    Collision Probability (Pc) 2.058315E-6
    Conjunction Distance (km) 2.285 km
    Relative Speed (km/s) 14.387 km/s
    Conjunction Risk Parameters R (Radial): -2.027 | I (In-track): 0.339 | C (Cross-track): -0.995
    Collision Risk Index (CRI) 0.41
    X Position (km) 1198.272 1196.954
    Position Y (km) -2470.374 -2470.066
    Position Z (km) 6263.196 6261.356
    Velocity X (km/s) 0.376 -5.063
    Velocity Y (km/s) -7.07 4.921
    Velocity Z (km/s) -2.893 2.903

    Orbital Parameters 国际轨道数据源

    Parameter SL-4 R/B STARLINK-37727
    Semimajor Axis (a) 6873.206 km 6843.623 km
    Eccentricity (e) 0.006209 0.000048
    Inclination (i) 98.2876° 97.2804°
    RAAN 94.7648° 311.4481°
    Perigee Argument 166.5609° 73.8669°
    Mean Anomaly (M) 193.7297° 286.2627°
    Apogee 537.743 km 465.818 km
    Perigee 452.395 km 465.154 km
    Orbit Epoch 2026-10-17T21:15:56+0000 2026-10-18T00:49:52+0000

    SL-4 R/B & STARLINK-37727 Collision Probability (Pc) Trend

    SL-4 R/B & STARLINK-37727 Collision Probability (Pc) TrendNot Available

    SL-4 R/B & STARLINK-37727 Miss Distance (Miss Distance) Trend

    SL-4 R/B & STARLINK-37727 Miss Distance (Miss Distance) TrendNot Available

    SL-4 R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37727Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SL-4 R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37727Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SL-4 R/B

    No nearby objects data