Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.40271E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T21:56:44+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 58661
    NORAD ID 58661
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 63519
    NORAD ID 63519
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter TIANMU-1 20 STARLINK-33787
    Time of Closest Approach 2026-10-21T04:13:39+0000
    Collision Probability (Pc) 1.40271E-6
    Conjunction Distance (km) 2.745 km
    Relative Speed (km/s) 13.085 km/s
    Conjunction Risk Parameters R (Radial): 1.463 | I (In-track): -1.182 | C (Cross-track): -1.999
    Collision Risk Index (CRI) 0.38
    X Position (km) 2036.58 2035.247
    Position Y (km) 3759.491 3760.586
    Position Z (km) -5347.939 -5345.804
    Velocity X (km/s) 4.168 -7.23
    Velocity Y (km/s) 4.368 2.025
    Velocity Z (km/s) 4.654 -1.329

    Orbital Parameters 国际轨道数据源

    Parameter TIANMU-1 20 STARLINK-33787
    Semimajor Axis (a) 6840.582 km 6840.802 km
    Eccentricity (e) 0.000585 0.000040
    Inclination (i) 97.4553° 53.1579°
    RAAN 50.2269° 182.5402°
    Perigee Argument 231.1098° 96.1410°
    Mean Anomaly (M) 128.9624° 263.9638°
    Apogee 466.451 km 462.938 km
    Perigee 458.439 km 462.392 km
    Orbit Epoch 2026-10-19T07:04:04+0000 2026-10-18T21:57:43+0000

    TIANMU-1 20 & STARLINK-33787 Collision Probability (Pc) Trend

    TIANMU-1 20 & STARLINK-33787 Collision Probability (Pc) TrendNot Available

    TIANMU-1 20 & STARLINK-33787 Miss Distance (Miss Distance) Trend

    TIANMU-1 20 & STARLINK-33787 Miss Distance (Miss Distance) TrendNot Available

    TIANMU-1 20Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33787Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TIANMU-1 20Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33787Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TIANMU-1 20

    No nearby objects data