Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.960996E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T03:19:12+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 54842
    NORAD ID 54842
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 58646
    NORAD ID 58646
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-5387 TIANMU-1 12
    Time of Closest Approach 2026-10-20T22:03:57+0000
    Collision Probability (Pc) 3.960996E-6
    Conjunction Distance (km) 1.515 km
    Relative Speed (km/s) 7.093 km/s
    Conjunction Risk Parameters R (Radial): 1.504 | I (In-track): -0.158 | C (Cross-track): 0.083
    Collision Risk Index (CRI) 0.47
    X Position (km) -4510.702 -4511.664
    Position Y (km) 5024.384 5025.548
    Position Z (km) -1225.636 -1225.74
    Velocity X (km/s) -3.609 1.636
    Velocity Y (km/s) -4.46 -0.342
    Velocity Z (km/s) -5.021 -7.436

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5387 TIANMU-1 12
    Semimajor Axis (a) 6861.190 km 6860.730 km
    Eccentricity (e) 0.000180 0.000556
    Inclination (i) 43.0049° 97.3397°
    RAAN 316.4008° 310.9009°
    Perigee Argument 278.9848° 272.8384°
    Mean Anomaly (M) 81.0800° 87.2219°
    Apogee 484.288 km 486.408 km
    Perigee 481.818 km 478.778 km
    Orbit Epoch 2026-10-18T03:18:23+0000 2026-10-18T12:38:41+0000

    STARLINK-5387 & TIANMU-1 12 Collision Probability (Pc) Trend

    STARLINK-5387 & TIANMU-1 12 Collision Probability (Pc) TrendNot Available

    STARLINK-5387 & TIANMU-1 12 Miss Distance (Miss Distance) Trend

    STARLINK-5387 & TIANMU-1 12 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5387Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANMU-1 12Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5387Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 12Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5387

    No nearby objects data