Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.706197E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T18:17:35+0800
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    1 Object 1

    Name STEP 2
    AOE ID 23105
    NORAD ID 23105
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 69786
    NORAD ID 69786
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STEP 2 KUIPER-00639
    Time of Closest Approach 2026-09-07T23:57:06+0000
    Collision Probability (Pc) 1.706197E-6
    Conjunction Distance (km) 2.491 km
    Relative Speed (km/s) 13.953 km/s
    Conjunction Risk Parameters R (Radial): -0.975 | I (In-track): -0.917 | C (Cross-track): 2.101
    Collision Risk Index (CRI) 0.4
    X Position (km) -78.768 -76.548
    Position Y (km) 6826.197 6825.361
    Position Z (km) 1141.357 1140.595
    Velocity X (km/s) -1.069 -4.758
    Velocity Y (km/s) -1.243 0.932
    Velocity Z (km/s) 7.441 -5.838

    Orbital Parameters 国际轨道数据源

    Parameter STEP 2 KUIPER-00639
    Semimajor Axis (a) 6972.777 km 6912.243 km
    Eccentricity (e) 0.008182 0.001137
    Inclination (i) 81.9348° 51.8828°
    RAAN 92.3214° 291.3222°
    Perigee Argument 357.6576° 355.8686°
    Mean Anomaly (M) 2.4245° 246.3754°
    Apogee 651.694 km 541.966 km
    Perigee 537.586 km 526.246 km
    Orbit Epoch 2026-09-05T01:02:41+0000 2026-09-05T04:00:02+0000

    STEP 2 & KUIPER-00639 Collision Probability (Pc) Trend

    STEP 2 & KUIPER-00639 Collision Probability (Pc) TrendNot Available

    STEP 2 & KUIPER-00639 Miss Distance (Miss Distance) Trend

    STEP 2 & KUIPER-00639 Miss Distance (Miss Distance) TrendNot Available

    STEP 2Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    KUIPER-00639Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STEP 2Collision Probability Trend

    Object 1 Probability TrendNot Available

    KUIPER-00639Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STEP 2

    No nearby objects data