Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.497178E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T15:18:58+0800
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    1 Object 1

    AOE ID 2980
    NORAD ID 2980
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 61111
    NORAD ID 61111
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter OPS 1264 (DMSP 4A F4) CZ-6A DEB
    Time of Closest Approach 2026-10-30T22:08:12+0000
    Collision Probability (Pc) 1.497178E-6
    Conjunction Distance (km) 2.723 km
    Relative Speed (km/s) 14.33 km/s
    Conjunction Risk Parameters R (Radial): -2.065 | I (In-track): 0.498 | C (Cross-track): 1.702
    Collision Risk Index (CRI) 0.39
    X Position (km) 604.346 605.541
    Position Y (km) 1775.909 1774.281
    Position Z (km) -6864.423 -6862.597
    Velocity X (km/s) 6.107 -2.847
    Velocity Y (km/s) 3.95 -6.656
    Velocity Z (km/s) 1.61 -1.95

    Orbital Parameters 国际轨道数据源

    Parameter OPS 1264 (DMSP 4A F4) CZ-6A DEB
    Semimajor Axis (a) 7061.303 km 7147.955 km
    Eccentricity (e) 0.009379 0.006437
    Inclination (i) 99.1759° 88.9044°
    RAAN 33.5930° 247.2787°
    Perigee Argument 62.2552° 284.6647°
    Mean Anomaly (M) 298.8120° 74.7423°
    Apogee 749.396 km 815.828 km
    Perigee 616.936 km 723.808 km
    Orbit Epoch 2026-10-29T16:56:57+0000 2026-10-29T19:52:26+0000

    OPS 1264 (DMSP 4A F4) & CZ-6A DEB Collision Probability (Pc) Trend

    OPS 1264 (DMSP 4A F4) & CZ-6A DEB Collision Probability (Pc) TrendNot Available

    OPS 1264 (DMSP 4A F4) & CZ-6A DEB Miss Distance (Miss Distance) Trend

    OPS 1264 (DMSP 4A F4) & CZ-6A DEB Miss Distance (Miss Distance) TrendNot Available

    OPS 1264 (DMSP 4A F4)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    CZ-6A DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    OPS 1264 (DMSP 4A F4)Collision Probability Trend

    Object 1 Probability TrendNot Available

    CZ-6A DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OPS 1264 (DMSP 4A F4)

    No nearby objects data