Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.306379E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T01:12:11+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 58040
    NORAD ID 58040
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58662
    NORAD ID 58662
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-30555 TIANMU-1 21
    Time of Closest Approach 2026-09-11T20:52:55+0000
    Collision Probability (Pc) 8.306379E-7
    Conjunction Distance (km) 2.877 km
    Relative Speed (km/s) 5.777 km/s
    Conjunction Risk Parameters R (Radial): -0.999 | I (In-track): -2.495 | C (Cross-track): -1.023
    Collision Risk Index (CRI) 0.33
    X Position (km) -6546.938 -6547.914
    Position Y (km) -1895.985 -1896.986
    Position Z (km) 579.624 577.111
    Velocity X (km/s) 0.774 -0.9
    Velocity Y (km/s) -4.558 0.774
    Velocity Z (km/s) -6.079 -7.54

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-30555 TIANMU-1 21
    Semimajor Axis (a) 6840.806 km 6834.655 km
    Eccentricity (e) 0.000114 0.000708
    Inclination (i) 53.1606° 97.4584°
    RAAN 25.4356° 14.9611°
    Perigee Argument 121.7271° 19.8240°
    Mean Anomaly (M) 238.3843° 340.3277°
    Apogee 463.452 km 461.358 km
    Perigee 461.886 km 451.678 km
    Orbit Epoch 2026-09-10T15:59:22+0000 2026-09-11T07:37:08+0000

    STARLINK-30555 & TIANMU-1 21 Collision Probability (Pc) Trend

    STARLINK-30555 & TIANMU-1 21 Collision Probability (Pc) TrendNot Available

    STARLINK-30555 & TIANMU-1 21 Miss Distance (Miss Distance) Trend

    STARLINK-30555 & TIANMU-1 21 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-30555Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANMU-1 21Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-30555Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 21Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-30555

    No nearby objects data