Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.462007E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T22:30:33+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 55761
    NORAD ID 55761
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SENTINEL 1B STARLINK-5611
    Time of Closest Approach 2026-09-05T19:27:21+0000
    Collision Probability (Pc) 1.462007E-6
    Conjunction Distance (km) 2.824 km
    Relative Speed (km/s) 15.057 km/s
    Conjunction Risk Parameters R (Radial): 2.793 | I (In-track): -0.034 | C (Cross-track): -0.416
    Collision Risk Index (CRI) 0.38
    X Position (km) 4767.24 4765.628
    Position Y (km) -4929.821 -4927.576
    Position Z (km) -1164.593 -1164.015
    Velocity X (km/s) 0.096 1.064
    Velocity Y (km/s) -1.652 2.677
    Velocity Z (km/s) 7.385 -7.004

    Orbital Parameters 国际轨道数据源

    Parameter SENTINEL 1B STARLINK-5611
    Semimajor Axis (a) 6946.738 km 6950.192 km
    Eccentricity (e) 0.001194 0.000290
    Inclination (i) 98.0894° 69.9998°
    RAAN 311.0639° 134.7921°
    Perigee Argument 227.7416° 266.8220°
    Mean Anomaly (M) 132.2795° 93.2608°
    Apogee 576.894 km 574.070 km
    Perigee 560.308 km 570.040 km
    Orbit Epoch 2026-09-04T06:39:47+0000 2026-09-04T02:33:14+0000

    SENTINEL 1B & STARLINK-5611 Collision Probability (Pc) Trend

    SENTINEL 1B & STARLINK-5611 Collision Probability (Pc) TrendNot Available

    SENTINEL 1B & STARLINK-5611 Miss Distance (Miss Distance) Trend

    SENTINEL 1B & STARLINK-5611 Miss Distance (Miss Distance) TrendNot Available

    SENTINEL 1BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5611Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SENTINEL 1BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5611Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SENTINEL 1B

    No nearby objects data