Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.04684E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T04:52:19+0800
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    1 Object 1

    AOE ID 5580
    NORAD ID 5580
    Object Type PAYLOAD
    Country
    GB GB
    VS

    2 Object 2

    AOE ID 30300
    NORAD ID 30300
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter PROSPERO (BLACK ARROW) FENGYUN 1C DEB
    Time of Closest Approach 2026-09-12T15:39:30+0000
    Collision Probability (Pc) 3.04684E-6
    Conjunction Distance (km) 1.906 km
    Relative Speed (km/s) 13.377 km/s
    Conjunction Risk Parameters R (Radial): -1.861 | I (In-track): 0.126 | C (Cross-track): -0.382
    Collision Risk Index (CRI) 0.45
    X Position (km) 6.152 6.258
    Position Y (km) 1193.828 1193.134
    Position Z (km) -7043.479 -7041.708
    Velocity X (km/s) -6.257 7.02
    Velocity Y (km/s) -4.168 -2.541
    Velocity Z (km/s) -0.354 -0.462

    Orbital Parameters 国际轨道数据源

    Parameter PROSPERO (BLACK ARROW) FENGYUN 1C DEB
    Semimajor Axis (a) 7265.580 km 7171.866 km
    Eccentricity (e) 0.050007 0.007190
    Inclination (i) 82.0381° 99.0318°
    RAAN 215.1591° 338.0374°
    Perigee Argument 340.1246° 226.5548°
    Mean Anomaly (M) 18.1026° 162.5432°
    Apogee 1250.770 km 845.292 km
    Perigee 524.116 km 742.166 km
    Orbit Epoch 2026-09-11T09:14:39+0000 2026-09-11T04:57:11+0000

    PROSPERO (BLACK ARROW) & FENGYUN 1C DEB Collision Probability (Pc) Trend

    PROSPERO (BLACK ARROW) & FENGYUN 1C DEB Collision Probability (Pc) TrendNot Available

    PROSPERO (BLACK ARROW) & FENGYUN 1C DEB Miss Distance (Miss Distance) Trend

    PROSPERO (BLACK ARROW) & FENGYUN 1C DEB Miss Distance (Miss Distance) TrendNot Available

    PROSPERO (BLACK ARROW)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    PROSPERO (BLACK ARROW)Collision Probability Trend

    Object 1 Probability TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with PROSPERO (BLACK ARROW)

    No nearby objects data