Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.535167E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-25T00:35:51+0800
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    1 Object 1

    Name OAO 1
    AOE ID 2142
    NORAD ID 2142
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 43253
    NORAD ID 43253
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter OAO 1 IRIDIUM 145
    Time of Closest Approach 2026-10-24T22:05:30+0000
    Collision Probability (Pc) 3.535167E-6
    Conjunction Distance (km) 1.73 km
    Relative Speed (km/s) 11.054 km/s
    Conjunction Risk Parameters R (Radial): -0.01 | I (In-track): 1.16 | C (Cross-track): -1.283
    Collision Risk Index (CRI) 0.46
    X Position (km) 3518.514 3517.762
    Position Y (km) 4791.416 4792.694
    Position Z (km) 3978.294 3977.402
    Velocity X (km/s) -6.351 2
    Velocity Y (km/s) 3.78 3.679
    Velocity Z (km/s) 1.059 -6.182

    Orbital Parameters 国际轨道数据源

    Parameter OAO 1 IRIDIUM 145
    Semimajor Axis (a) 7154.151 km 7155.805 km
    Eccentricity (e) 0.000727 0.000220
    Inclination (i) 35.0471° 86.3970°
    RAAN 344.5225° 236.4704°
    Perigee Argument 232.3975° 90.1434°
    Mean Anomaly (M) 127.6053° 270.0014°
    Apogee 781.213 km 779.245 km
    Perigee 770.815 km 776.091 km
    Orbit Epoch 2026-10-24T06:42:29+0000 2026-10-24T02:59:39+0000

    OAO 1 & IRIDIUM 145 Collision Probability (Pc) Trend

    OAO 1 & IRIDIUM 145 Collision Probability (Pc) TrendNot Available

    OAO 1 & IRIDIUM 145 Miss Distance (Miss Distance) Trend

    OAO 1 & IRIDIUM 145 Miss Distance (Miss Distance) TrendNot Available

    OAO 1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 145Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    OAO 1Collision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 145Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OAO 1

    No nearby objects data