Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.209905E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T16:44:56+0800
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    1 Object 1

    AOE ID 41456
    NORAD ID 41456
    Object Type PAYLOAD
    Country
    ESA ESA
    VS

    2 Object 2

    AOE ID 55914
    NORAD ID 55914
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SENTINEL 1B STARLINK-5856
    Time of Closest Approach 2026-09-06T02:13:24+0000
    Collision Probability (Pc) 2.209905E-6
    Conjunction Distance (km) 2.107 km
    Relative Speed (km/s) 12.021 km/s
    Conjunction Risk Parameters R (Radial): 2.09 | I (In-track): -0.167 | C (Cross-track): -0.203
    Collision Risk Index (CRI) 0.42
    X Position (km) 834.724 834.525
    Position Y (km) -2257.19 -2256.265
    Position Z (km) 6517.005 6515.123
    Velocity X (km/s) -5.136 6.637
    Velocity Y (km/s) 5.021 3.624
    Velocity Z (km/s) 2.387 0.404

    Orbital Parameters 国际轨道数据源

    Parameter SENTINEL 1B STARLINK-5856
    Semimajor Axis (a) 6946.738 km 6950.187 km
    Eccentricity (e) 0.001192 0.000327
    Inclination (i) 98.0894° 69.9995°
    RAAN 310.9253° 216.6879°
    Perigee Argument 228.2667° 266.4621°
    Mean Anomaly (M) 131.7536° 93.6164°
    Apogee 576.880 km 574.326 km
    Perigee 560.322 km 569.774 km
    Orbit Epoch 2026-09-04T03:27:36+0000 2026-09-03T08:08:45+0000

    SENTINEL 1B & STARLINK-5856 Collision Probability (Pc) Trend

    SENTINEL 1B & STARLINK-5856 Collision Probability (Pc) TrendNot Available

    SENTINEL 1B & STARLINK-5856 Miss Distance (Miss Distance) Trend

    SENTINEL 1B & STARLINK-5856 Miss Distance (Miss Distance) TrendNot Available

    SENTINEL 1BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5856Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SENTINEL 1BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5856Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SENTINEL 1B

    No nearby objects data