Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    9.819799E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T08:12:12+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 58685
    NORAD ID 58685
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66488
    NORAD ID 66488
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-31121 STARLINK-35515
    Time of Closest Approach 2026-10-22T03:55:11+0000
    Collision Probability (Pc) 9.819799E-6
    Conjunction Distance (km) 1.172 km
    Relative Speed (km/s) 7.637 km/s
    Conjunction Risk Parameters R (Radial): -0.14 | I (In-track): 1.004 | C (Cross-track): -0.587
    Collision Risk Index (CRI) 0.55
    X Position (km) 1856.852 1857.916
    Position Y (km) -5487.794 -5487.313
    Position Z (km) 3667.816 3667.735
    Velocity X (km/s) 5.598 6.91
    Velocity Y (km/s) 4.054 0.179
    Velocity Z (km/s) 3.224 -3.224

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31121 STARLINK-35515
    Semimajor Axis (a) 6861.153 km 6861.156 km
    Eccentricity (e) 0.000196 0.000154
    Inclination (i) 43.0022° 42.9985°
    RAAN 256.6679° 163.8278°
    Perigee Argument 272.1824° 266.4570°
    Mean Anomaly (M) 87.8803° 93.6105°
    Apogee 484.361 km 484.077 km
    Perigee 481.671 km 481.961 km
    Orbit Epoch 2026-10-20T06:11:10+0000 2026-10-19T23:34:37+0000

    STARLINK-31121 & STARLINK-35515 Collision Probability (Pc) Trend

    STARLINK-31121 & STARLINK-35515 Collision Probability (Pc) TrendNot Available

    STARLINK-31121 & STARLINK-35515 Miss Distance (Miss Distance) Trend

    STARLINK-31121 & STARLINK-35515 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31121Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35515Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-31121Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35515Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31121

    No nearby objects data