Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    9.974234E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T08:20:14+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 59487
    NORAD ID 59487
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 67921
    NORAD ID 67921
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-31657 STARLINK-36405
    Time of Closest Approach 2026-10-21T17:16:58+0000
    Collision Probability (Pc) 9.974234E-6
    Conjunction Distance (km) 1.166 km
    Relative Speed (km/s) 7.619 km/s
    Conjunction Risk Parameters R (Radial): -0.316 | I (In-track): -0.969 | C (Cross-track): 0.565
    Collision Risk Index (CRI) 0.55
    X Position (km) -5755.011 -5754.863
    Position Y (km) -616.324 -615.18
    Position Z (km) 3675.986 3675.821
    Velocity X (km/s) 2.738 -1.332
    Velocity Y (km/s) -6.353 -6.789
    Velocity Z (km/s) 3.213 -3.212

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31657 STARLINK-36405
    Semimajor Axis (a) 6861.208 km 6861.077 km
    Eccentricity (e) 0.000119 0.000079
    Inclination (i) 43.0031° 43.0031°
    RAAN 152.8112° 56.9506°
    Perigee Argument 269.6619° 283.0457°
    Mean Anomaly (M) 90.4096° 77.0307°
    Apogee 483.885 km 483.480 km
    Perigee 482.257 km 482.400 km
    Orbit Epoch 2026-10-20T00:15:21+0000 2026-10-20T07:46:18+0000

    STARLINK-31657 & STARLINK-36405 Collision Probability (Pc) Trend

    STARLINK-31657 & STARLINK-36405 Collision Probability (Pc) TrendNot Available

    STARLINK-31657 & STARLINK-36405 Miss Distance (Miss Distance) Trend

    STARLINK-31657 & STARLINK-36405 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31657Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36405Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-31657Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36405Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31657

    No nearby objects data