Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.379812E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T22:02:25+0800
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    1 Object 1

    AOE ID 25977
    NORAD ID 25977
    Object Type PAYLOAD
    Country
    FR FR
    VS

    2 Object 2

    AOE ID 30569
    NORAD ID 30569
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter HELIOS 1B FENGYUN 1C DEB
    Time of Closest Approach 2026-09-12T04:08:52+0000
    Collision Probability (Pc) 3.379812E-6
    Conjunction Distance (km) 1.768 km
    Relative Speed (km/s) 11.359 km/s
    Conjunction Risk Parameters R (Radial): -0.063 | I (In-track): -1.163 | C (Cross-track): -1.328
    Collision Risk Index (CRI) 0.46
    X Position (km) -1455.439 -1454.728
    Position Y (km) -571.665 -573.283
    Position Z (km) -6813.082 -6813.033
    Velocity X (km/s) -7.037 3.133
    Velocity Y (km/s) 2.374 6.749
    Velocity Z (km/s) 1.304 -1.236

    Orbital Parameters 国际轨道数据源

    Parameter HELIOS 1B FENGYUN 1C DEB
    Semimajor Axis (a) 6981.720 km 6985.860 km
    Eccentricity (e) 0.000179 0.000447
    Inclination (i) 98.1516° 98.7456°
    RAAN 161.9130° 61.7297°
    Perigee Argument 122.2534° 291.8271°
    Mean Anomaly (M) 237.8855° 68.2466°
    Apogee 604.832 km 610.850 km
    Perigee 602.334 km 604.596 km
    Orbit Epoch 2026-09-11T07:31:45+0000 2026-09-10T10:36:12+0000

    HELIOS 1B & FENGYUN 1C DEB Collision Probability (Pc) Trend

    HELIOS 1B & FENGYUN 1C DEB Collision Probability (Pc) TrendNot Available

    HELIOS 1B & FENGYUN 1C DEB Miss Distance (Miss Distance) Trend

    HELIOS 1B & FENGYUN 1C DEB Miss Distance (Miss Distance) TrendNot Available

    HELIOS 1BMiss 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

    HELIOS 1BCollision Probability Trend

    Object 1 Probability TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HELIOS 1B

    No nearby objects data