Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    6.552631E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T21:39:37+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 28220
    NORAD ID 28220
    Object Type PAYLOAD
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 58711
    NORAD ID 58711
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter TANSUO 1 STARLINK-31031
    Time of Closest Approach 2026-09-13T18:36:14+0000
    Collision Probability (Pc) 6.552631E-5
    Conjunction Distance (km) 0.721 km
    Relative Speed (km/s) 11.363 km/s
    Conjunction Risk Parameters R (Radial): 0.618 | I (In-track): 0.254 | C (Cross-track): -0.272
    Collision Risk Index (CRI) 0.71
    X Position (km) 4086.32 4086.964
    Position Y (km) -630.689 -630.578
    Position Z (km) -5456.434 -5456.74
    Velocity X (km/s) 5.581 1.858
    Velocity Y (km/s) -2.609 7.374
    Velocity Z (km/s) 4.488 0.54

    Orbital Parameters 国际轨道数据源

    Parameter TANSUO 1 STARLINK-31031
    Semimajor Axis (a) 6836.726 km 6840.848 km
    Eccentricity (e) 0.000650 0.000144
    Inclination (i) 97.8650° 53.1615°
    RAAN 337.9432° 87.0536°
    Perigee Argument 79.6592° 96.0579°
    Mean Anomaly (M) 280.5383° 264.0587°
    Apogee 463.032 km 463.695 km
    Perigee 454.146 km 461.727 km
    Orbit Epoch 2026-09-11T04:17:22+0000 2026-09-10T17:30:00+0000

    TANSUO 1 & STARLINK-31031 Collision Probability (Pc) Trend

    TANSUO 1 & STARLINK-31031 Collision Probability (Pc) TrendNot Available

    TANSUO 1 & STARLINK-31031 Miss Distance (Miss Distance) Trend

    TANSUO 1 & STARLINK-31031 Miss Distance (Miss Distance) TrendNot Available

    TANSUO 1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31031Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TANSUO 1Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31031Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TANSUO 1

    No nearby objects data