Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    3.876519E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T00:40:03+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 48597
    NORAD ID 48597
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 50572
    NORAD ID 50572
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-2255 TIANHUI 4A
    Time of Closest Approach 2026-10-28T19:33:28+0000
    Collision Probability (Pc) 3.876519E-5
    Conjunction Distance (km) 0.896 km
    Relative Speed (km/s) 14.432 km/s
    Conjunction Risk Parameters R (Radial): 0.569 | I (In-track): 0.22 | C (Cross-track): 0.656
    Collision Risk Index (CRI) 0.67
    X Position (km) -3698.489 -3697.658
    Position Y (km) 5506.13 5506.076
    Position Z (km) -1519.35 -1519.021
    Velocity X (km/s) -4.656 0.833
    Velocity Y (km/s) -1.511 -1.495
    Velocity Z (km/s) 5.886 -7.461

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-2255 TIANHUI 4A
    Semimajor Axis (a) 6802.628 km 6800.614 km
    Eccentricity (e) 0.000115 0.000437
    Inclination (i) 53.1588° 88.9623°
    RAAN 141.2420° 303.8648°
    Perigee Argument 90.3646° 266.3599°
    Mean Anomaly (M) 171.0093° 93.7161°
    Apogee 425.272 km 425.452 km
    Perigee 423.710 km 419.502 km
    Orbit Epoch 2026-10-27T06:00:04+0000 2026-10-27T07:02:38+0000

    STARLINK-2255 & TIANHUI 4A Collision Probability (Pc) Trend

    STARLINK-2255 & TIANHUI 4A Collision Probability (Pc) TrendNot Available

    STARLINK-2255 & TIANHUI 4A Miss Distance (Miss Distance) Trend

    STARLINK-2255 & TIANHUI 4A Miss Distance (Miss Distance) TrendNot Available

    STARLINK-2255Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANHUI 4AMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-2255Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANHUI 4ACollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-2255

    No nearby objects data