Conjunction Event Detail

    High Risk
    High collision probability. Maneuver recommended for primary asset.
    3.629054E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T05:51:32+0800
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    1 Object 1

    Name IRS 1D
    AOE ID 24971
    NORAD ID 24971
    Object Type PAYLOAD
    Country
    IN IN
    VS

    2 Object 2

    AOE ID 61568
    NORAD ID 61568
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter IRS 1D QIANFAN-35
    Time of Closest Approach 2026-09-17T05:16:36+0000
    Collision Probability (Pc) 3.629054E-4
    Conjunction Distance (km) 0.371 km
    Relative Speed (km/s) 14.275 km/s
    Conjunction Risk Parameters R (Radial): -0.168 | I (In-track): -0.087 | C (Cross-track): -0.317
    Collision Risk Index (CRI) 0.86
    X Position (km) -1378.748 -1378.427
    Position Y (km) -1168.684 -1168.812
    Position Z (km) 6930.743 6930.611
    Velocity X (km/s) 1.412 -5.155
    Velocity Y (km/s) 7.154 -5.059
    Velocity Z (km/s) 1.519 -1.873

    Orbital Parameters 国际轨道数据源

    Parameter IRS 1D QIANFAN-35
    Semimajor Axis (a) 7151.403 km 7175.373 km
    Eccentricity (e) 0.005144 0.000857
    Inclination (i) 98.8506° 88.9838°
    RAAN 255.1732° 44.3892°
    Perigee Argument 323.3875° 95.3570°
    Mean Anomaly (M) 36.3798° 264.8602°
    Apogee 810.052 km 803.385 km
    Perigee 736.480 km 791.087 km
    Orbit Epoch 2026-09-15T11:05:39+0000 2026-09-15T14:07:09+0000

    IRS 1D & QIANFAN-35 Collision Probability (Pc) Trend

    IRS 1D & QIANFAN-35 Collision Probability (Pc) TrendNot Available

    IRS 1D & QIANFAN-35 Miss Distance (Miss Distance) Trend

    IRS 1D & QIANFAN-35 Miss Distance (Miss Distance) TrendNot Available

    IRS 1DMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-35Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    IRS 1DCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-35Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with IRS 1D

    No nearby objects data