Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    4.419318E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-25T00:48:27+0800
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    1 Object 1

    AOE ID 3510
    NORAD ID 3510
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 43077
    NORAD ID 43077
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter OPS 4078 (DMSP 4B F2) IRIDIUM 141
    Time of Closest Approach 2026-10-25T00:31:31+0000
    Collision Probability (Pc) 4.419318E-4
    Conjunction Distance (km) 0.329 km
    Relative Speed (km/s) 14.413 km/s
    Conjunction Risk Parameters R (Radial): -0.308 | I (In-track): -0.019 | C (Cross-track): -0.11
    Collision Risk Index (CRI) 0.88
    X Position (km) -386.7 -386.787
    Position Y (km) 1393.817 1393.798
    Position Z (km) -7017.59 -7017.274
    Velocity X (km/s) 4.007 -0.385
    Velocity Y (km/s) 6.206 -7.3
    Velocity Z (km/s) 1.023 -1.429

    Orbital Parameters 国际轨道数据源

    Parameter OPS 4078 (DMSP 4B F2) IRIDIUM 141
    Semimajor Axis (a) 7175.618 km 7155.806 km
    Eccentricity (e) 0.002883 0.000219
    Inclination (i) 98.5887° 86.3921°
    RAAN 57.6068° 268.0866°
    Perigee Argument 310.7180° 85.7376°
    Mean Anomaly (M) 49.1497° 274.4070°
    Apogee 818.170 km 779.237 km
    Perigee 776.792 km 776.101 km
    Orbit Epoch 2026-10-24T06:24:47+0000 2026-10-24T01:33:15+0000

    OPS 4078 (DMSP 4B F2) & IRIDIUM 141 Collision Probability (Pc) Trend

    OPS 4078 (DMSP 4B F2) & IRIDIUM 141 Collision Probability (Pc) TrendNot Available

    OPS 4078 (DMSP 4B F2) & IRIDIUM 141 Miss Distance (Miss Distance) Trend

    OPS 4078 (DMSP 4B F2) & IRIDIUM 141 Miss Distance (Miss Distance) TrendNot Available

    OPS 4078 (DMSP 4B F2)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 141Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    OPS 4078 (DMSP 4B F2)Collision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 141Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OPS 4078 (DMSP 4B F2)

    No nearby objects data