Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.609614E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-18T07:35:56+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 58646
    NORAD ID 58646
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 59661
    NORAD ID 59661
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter TIANMU-1 12 STARLINK-31880
    Time of Closest Approach 2026-10-18T04:11:13+0000
    Collision Probability (Pc) 4.609614E-6
    Conjunction Distance (km) 1.59 km
    Relative Speed (km/s) 11.192 km/s
    Conjunction Risk Parameters R (Radial): 0.914 | I (In-track): 0.88 | C (Cross-track): -0.958
    Collision Risk Index (CRI) 0.48
    X Position (km) -2800.379 -2799.744
    Position Y (km) 4195.747 4196.209
    Position Z (km) -4656.556 -4655.174
    Velocity X (km/s) 3.926 -6.035
    Velocity Y (km/s) -3.497 -4.617
    Velocity Z (km/s) -5.51 -0.532

    Orbital Parameters 国际轨道数据源

    Parameter TIANMU-1 12 STARLINK-31880
    Semimajor Axis (a) 6860.761 km 6861.210 km
    Eccentricity (e) 0.000554 0.000062
    Inclination (i) 97.3397° 43.0016°
    RAAN 309.8693° 227.1624°
    Perigee Argument 277.9509° 286.2524°
    Mean Anomaly (M) 82.1102° 73.8260°
    Apogee 486.423 km 483.497 km
    Perigee 478.825 km 482.649 km
    Orbit Epoch 2026-10-17T11:29:36+0000 2026-10-17T05:03:58+0000

    TIANMU-1 12 & STARLINK-31880 Collision Probability (Pc) Trend

    TIANMU-1 12 & STARLINK-31880 Collision Probability (Pc) TrendNot Available

    TIANMU-1 12 & STARLINK-31880 Miss Distance (Miss Distance) Trend

    TIANMU-1 12 & STARLINK-31880 Miss Distance (Miss Distance) TrendNot Available

    TIANMU-1 12Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31880Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TIANMU-1 12Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31880Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TIANMU-1 12

    No nearby objects data