Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.120656E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T13:59:49+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 53546
    NORAD ID 53546
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66881
    NORAD ID 66881
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4477 STARLINK-35860
    Time of Closest Approach 2026-10-21T23:47:19+0000
    Collision Probability (Pc) 1.120656E-6
    Conjunction Distance (km) 2.232 km
    Relative Speed (km/s) 4.766 km/s
    Conjunction Risk Parameters R (Radial): -0.49 | I (In-track): 2.068 | C (Cross-track): 0.683
    Collision Risk Index (CRI) 0.36
    X Position (km) 4138.4 4138.735
    Position Y (km) -1252.18 -1250.007
    Position Z (km) -5308.356 -5307.975
    Velocity X (km/s) 0.328 3.863
    Velocity Y (km/s) 7.467 6.399
    Velocity Z (km/s) -1.507 1.506

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4477 STARLINK-35860
    Semimajor Axis (a) 6840.886 km 6840.840 km
    Eccentricity (e) 0.000118 0.000106
    Inclination (i) 53.1578° 53.1561°
    RAAN 107.6486° 61.1079°
    Perigee Argument 91.1045° 77.7688°
    Mean Anomaly (M) 269.0093° 282.3434°
    Apogee 463.559 km 463.431 km
    Perigee 461.939 km 461.975 km
    Orbit Epoch 2026-10-19T12:50:18+0000 2026-10-19T15:50:36+0000

    STARLINK-4477 & STARLINK-35860 Collision Probability (Pc) Trend

    STARLINK-4477 & STARLINK-35860 Collision Probability (Pc) TrendNot Available

    STARLINK-4477 & STARLINK-35860 Miss Distance (Miss Distance) Trend

    STARLINK-4477 & STARLINK-35860 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4477Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35860Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4477Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35860Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4477

    No nearby objects data