Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    5.906845E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T11:11:10+0800
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    1 Object 1

    AOE ID 4512
    NORAD ID 4512
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 43578
    NORAD ID 43578
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter OPS 0203 (DMSP 5A F2) IRIDIUM 159
    Time of Closest Approach 2026-09-04T05:28:02+0000
    Collision Probability (Pc) 5.906845E-6
    Conjunction Distance (km) 1.561 km
    Relative Speed (km/s) 14.872 km/s
    Conjunction Risk Parameters R (Radial): 0.294 | I (In-track): 0.104 | C (Cross-track): 1.53
    Collision Risk Index (CRI) 0.5
    X Position (km) -4488.03 -4488.761
    Position Y (km) -2315.655 -2314.328
    Position Z (km) -5080.24 -5080.613
    Velocity X (km/s) -5.357 4.982
    Velocity Y (km/s) -0.927 1.821
    Velocity Z (km/s) 5.094 -5.236

    Orbital Parameters 国际轨道数据源

    Parameter OPS 0203 (DMSP 5A F2) IRIDIUM 159
    Semimajor Axis (a) 7147.989 km 7155.799 km
    Eccentricity (e) 0.006201 0.000217
    Inclination (i) 98.8857° 86.3984°
    RAAN 197.8159° 23.8060°
    Perigee Argument 213.7965° 95.1076°
    Mean Anomaly (M) 145.9261° 265.0368°
    Apogee 814.177 km 779.216 km
    Perigee 725.527 km 776.108 km
    Orbit Epoch 2026-09-03T19:39:08+0000 2026-09-03T20:02:54+0000

    OPS 0203 (DMSP 5A F2) & IRIDIUM 159 Collision Probability (Pc) Trend

    OPS 0203 (DMSP 5A F2) & IRIDIUM 159 Collision Probability (Pc) TrendNot Available

    OPS 0203 (DMSP 5A F2) & IRIDIUM 159 Miss Distance (Miss Distance) Trend

    OPS 0203 (DMSP 5A F2) & IRIDIUM 159 Miss Distance (Miss Distance) TrendNot Available

    OPS 0203 (DMSP 5A F2)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 159Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    OPS 0203 (DMSP 5A F2)Collision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 159Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OPS 0203 (DMSP 5A F2)

    No nearby objects data