Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.018482E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T18:17:28+0800
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    1 Object 1

    Name STEP 2
    AOE ID 23105
    NORAD ID 23105
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 31666
    NORAD ID 31666
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter STEP 2 FENGYUN 1C DEB
    Time of Closest Approach 2026-09-06T17:05:10+0000
    Collision Probability (Pc) 1.018482E-6
    Conjunction Distance (km) 2.137 km
    Relative Speed (km/s) 3.423 km/s
    Conjunction Risk Parameters R (Radial): 1.392 | I (In-track): -1.574 | C (Cross-track): -0.386
    Collision Risk Index (CRI) 0.35
    X Position (km) 704.112 704.024
    Position Y (km) 4419.733 4419.402
    Position Z (km) -5300.803 -5302.911
    Velocity X (km/s) -0.745 2.633
    Velocity Y (km/s) 5.827 5.275
    Velocity Z (km/s) 4.817 4.759

    Orbital Parameters 国际轨道数据源

    Parameter STEP 2 FENGYUN 1C DEB
    Semimajor Axis (a) 6972.777 km 6938.622 km
    Eccentricity (e) 0.008182 0.001471
    Inclination (i) 81.9348° 98.6643°
    RAAN 92.3214° 68.0212°
    Perigee Argument 357.6576° 8.1648°
    Mean Anomaly (M) 2.4245° 351.9810°
    Apogee 651.694 km 570.693 km
    Perigee 537.586 km 550.277 km
    Orbit Epoch 2026-09-05T01:02:41+0000 2026-09-04T10:57:16+0000

    STEP 2 & FENGYUN 1C DEB Collision Probability (Pc) Trend

    STEP 2 & FENGYUN 1C DEB Collision Probability (Pc) TrendNot Available

    STEP 2 & FENGYUN 1C DEB Miss Distance (Miss Distance) Trend

    STEP 2 & FENGYUN 1C DEB Miss Distance (Miss Distance) TrendNot Available

    STEP 2Miss 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

    STEP 2Collision Probability Trend

    Object 1 Probability TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STEP 2

    No nearby objects data