Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.790622E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T17:00:33+0800
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    1 Object 1

    AOE ID 4255
    NORAD ID 4255
    Object Type ROCKET BODY
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 69576
    NORAD ID 69576
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter SL-8 R/B HULIANWANG DIGUI-173
    Time of Closest Approach 2026-09-06T17:58:38+0000
    Collision Probability (Pc) 3.790622E-6
    Conjunction Distance (km) 1.708 km
    Relative Speed (km/s) 11.614 km/s
    Conjunction Risk Parameters R (Radial): -1.571 | I (In-track): -0.401 | C (Cross-track): 0.537
    Collision Risk Index (CRI) 0.47
    X Position (km) -5736.146 -5734.651
    Position Y (km) 1762.102 1762.314
    Position Z (km) -4553.805 -4553.007
    Velocity X (km/s) -4.673 0.757
    Velocity Y (km/s) -1.194 -6.372
    Velocity Z (km/s) 5.441 -3.423

    Orbital Parameters 国际轨道数据源

    Parameter SL-8 R/B HULIANWANG DIGUI-173
    Semimajor Axis (a) 7526.196 km 7527.446 km
    Eccentricity (e) 0.001042 0.000004
    Inclination (i) 74.0148° 50.0050°
    RAAN 177.8497° 308.9114°
    Perigee Argument 59.9362° 283.1841°
    Mean Anomaly (M) 98.7219° 76.9027°
    Apogee 1155.899 km 1149.338 km
    Perigee 1140.219 km 1149.280 km
    Orbit Epoch 2026-09-05T05:02:57+0000 2026-09-05T04:43:43+0000

    SL-8 R/B & HULIANWANG DIGUI-173 Collision Probability (Pc) Trend

    SL-8 R/B & HULIANWANG DIGUI-173 Collision Probability (Pc) TrendNot Available

    SL-8 R/B & HULIANWANG DIGUI-173 Miss Distance (Miss Distance) Trend

    SL-8 R/B & HULIANWANG DIGUI-173 Miss Distance (Miss Distance) TrendNot Available

    SL-8 R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    HULIANWANG DIGUI-173Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SL-8 R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    HULIANWANG DIGUI-173Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SL-8 R/B

    No nearby objects data