Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.425138E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T05:14:19+0800
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    1 Object 1

    AOE ID 18709
    NORAD ID 18709
    Object Type PAYLOAD
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 25612
    NORAD ID 25612
    Object Type DEBRIS
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 1904 NIMBUS 2 DEB
    Time of Closest Approach 2026-09-16T01:54:14+0000
    Collision Probability (Pc) 1.425138E-6
    Conjunction Distance (km) 2.847 km
    Relative Speed (km/s) 14.69 km/s
    Conjunction Risk Parameters R (Radial): 2.241 | I (In-track): -0.068 | C (Cross-track): -1.755
    Collision Risk Index (CRI) 0.38
    X Position (km) 4829.677 4831.109
    Position Y (km) 930.949 932.969
    Position Z (km) 5475.356 5476.761
    Velocity X (km/s) -5.558 5.541
    Velocity Y (km/s) 0.311 -0.968
    Velocity Z (km/s) 4.812 -4.726

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 1904 NIMBUS 2 DEB
    Semimajor Axis (a) 7361.674 km 7344.278 km
    Eccentricity (e) 0.002823 0.003355
    Inclination (i) 82.9188° 100.4889°
    RAAN 3.3408° 178.1528°
    Perigee Argument 147.9930° 289.1496°
    Mean Anomaly (M) 223.1471° 222.0115°
    Apogee 1004.322 km 990.784 km
    Perigee 962.752 km 941.498 km
    Orbit Epoch 2026-09-15T13:29:27+0000 2026-09-15T06:51:11+0000

    COSMOS 1904 & NIMBUS 2 DEB Collision Probability (Pc) Trend

    COSMOS 1904 & NIMBUS 2 DEB Collision Probability (Pc) TrendNot Available

    COSMOS 1904 & NIMBUS 2 DEB Miss Distance (Miss Distance) Trend

    COSMOS 1904 & NIMBUS 2 DEB Miss Distance (Miss Distance) TrendNot Available

    COSMOS 1904Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    NIMBUS 2 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 1904Collision Probability Trend

    Object 1 Probability TrendNot Available

    NIMBUS 2 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 1904

    No nearby objects data