Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.750189E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T21:39:47+0800
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    1 Object 1

    Name GP-B
    AOE ID 28230
    NORAD ID 28230
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 35848
    NORAD ID 35848
    Object Type DEBRIS
    Country
    US US

    Conjunction Constraints

    Parameter GP-B IRIDIUM 33 DEB
    Time of Closest Approach 2026-09-12T11:24:18+0000
    Collision Probability (Pc) 2.750189E-6
    Conjunction Distance (km) 2.03 km
    Relative Speed (km/s) 14.77 km/s
    Conjunction Risk Parameters R (Radial): -0.836 | I (In-track): 0.376 | C (Cross-track): -1.81
    Collision Risk Index (CRI) 0.44
    X Position (km) 733.288 731.598
    Position Y (km) 856.813 857.632
    Position Z (km) 6896.277 6895.508
    Velocity X (km/s) -4.938 2.203
    Velocity Y (km/s) -5.582 7.135
    Velocity Z (km/s) 1.216 -1.114

    Orbital Parameters 国际轨道数据源

    Parameter GP-B IRIDIUM 33 DEB
    Semimajor Axis (a) 6996.842 km 6993.198 km
    Eccentricity (e) 0.000241 0.000633
    Inclination (i) 89.8505° 86.3825°
    RAAN 48.5515° 253.2904°
    Perigee Argument 74.9480° 359.5367°
    Mean Anomaly (M) 285.2011° 0.5850°
    Apogee 620.390 km 619.488 km
    Perigee 617.020 km 610.634 km
    Orbit Epoch 2026-09-11T04:16:53+0000 2026-09-10T07:11:46+0000

    GP-B & IRIDIUM 33 DEB Collision Probability (Pc) Trend

    GP-B & IRIDIUM 33 DEB Collision Probability (Pc) TrendNot Available

    GP-B & IRIDIUM 33 DEB Miss Distance (Miss Distance) Trend

    GP-B & IRIDIUM 33 DEB Miss Distance (Miss Distance) TrendNot Available

    GP-BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 33 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    GP-BCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 33 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with GP-B

    No nearby objects data