Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    3.804937E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T18:25:09+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 53020
    NORAD ID 53020
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 58661
    NORAD ID 58661
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-4287 TIANMU-1 20
    Time of Closest Approach 2026-10-29T02:25:45+0000
    Collision Probability (Pc) 3.804937E-5
    Conjunction Distance (km) 0.784 km
    Relative Speed (km/s) 7.509 km/s
    Conjunction Risk Parameters R (Radial): 0.588 | I (In-track): -0.451 | C (Cross-track): -0.254
    Collision Risk Index (CRI) 0.67
    X Position (km) -2196.996 -2196.767
    Position Y (km) -4929.332 -4929.253
    Position Z (km) 4194.816 4194.071
    Velocity X (km/s) 4.055 -3.031
    Velocity Y (km/s) -5.153 -3.717
    Velocity Z (km/s) -3.919 -5.946

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4287 TIANMU-1 20
    Semimajor Axis (a) 6840.934 km 6840.227 km
    Eccentricity (e) 0.000127 0.000646
    Inclination (i) 53.1602° 97.4572°
    RAAN 112.0858° 57.9361°
    Perigee Argument 91.3040° 201.2758°
    Mean Anomaly (M) 268.8108° 158.8217°
    Apogee 463.663 km 466.508 km
    Perigee 461.931 km 457.672 km
    Orbit Epoch 2026-10-26T20:42:51+0000 2026-10-26T22:10:17+0000

    STARLINK-4287 & TIANMU-1 20 Collision Probability (Pc) Trend

    STARLINK-4287 & TIANMU-1 20 Collision Probability (Pc) TrendNot Available

    STARLINK-4287 & TIANMU-1 20 Miss Distance (Miss Distance) Trend

    STARLINK-4287 & TIANMU-1 20 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4287Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANMU-1 20Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4287Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 20Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4287

    No nearby objects data