Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    7.499587E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T03:36:59+0800
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    1 Object 1

    AOE ID 52998
    NORAD ID 52998
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66640
    NORAD ID 66640
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4254 STARLINK-35921
    Time of Closest Approach 2026-10-21T19:23:48+0000
    Collision Probability (Pc) 7.499587E-6
    Conjunction Distance (km) 1.067 km
    Relative Speed (km/s) 3.176 km/s
    Conjunction Risk Parameters R (Radial): -1.064 | I (In-track): -0.061 | C (Cross-track): 0.016
    Collision Risk Index (CRI) 0.53
    X Position (km) 1964.032 1963.783
    Position Y (km) 3711.565 3710.96
    Position Z (km) -5407.519 -5406.677
    Velocity X (km/s) -6.004 -7.178
    Velocity Y (km/s) 4.596 2.381
    Velocity Z (km/s) 0.975 -0.974

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4254 STARLINK-35921
    Semimajor Axis (a) 6840.880 km 6840.799 km
    Eccentricity (e) 0.000121 0.000122
    Inclination (i) 53.1579° 53.1557°
    RAAN 150.0535° 189.0364°
    Perigee Argument 91.3669° 85.2748°
    Mean Anomaly (M) 268.7472° 274.8395°
    Apogee 463.569 km 463.500 km
    Perigee 461.917 km 461.824 km
    Orbit Epoch 2026-10-19T00:31:41+0000 2026-10-17T03:17:13+0000

    STARLINK-4254 & STARLINK-35921 Collision Probability (Pc) Trend

    STARLINK-4254 & STARLINK-35921 Collision Probability (Pc) TrendNot Available

    STARLINK-4254 & STARLINK-35921 Miss Distance (Miss Distance) Trend

    STARLINK-4254 & STARLINK-35921 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4254Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35921Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4254Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35921Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4254

    No nearby objects data