Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.60445E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T18:46:46+0800
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    1 Object 1

    AOE ID 20438
    NORAD ID 20438
    Object Type PAYLOAD
    Country
    GB GB
    VS

    2 Object 2

    AOE ID 41516
    NORAD ID 41516
    Object Type DEBRIS
    Country
    US US

    Conjunction Constraints

    Parameter OSCAR 15 (UOSAT 4) NOAA 16 DEB
    Time of Closest Approach 2026-09-12T11:24:52+0000
    Collision Probability (Pc) 2.60445E-6
    Conjunction Distance (km) 1.545 km
    Relative Speed (km/s) 4.065 km/s
    Conjunction Risk Parameters R (Radial): -1.54 | I (In-track): 0.104 | C (Cross-track): 0.03
    Collision Risk Index (CRI) 0.43
    X Position (km) -599.991 -599.954
    Position Y (km) -954.775 -954.515
    Position Z (km) 7059.395 7057.874
    Velocity X (km/s) -5.132 -7.188
    Velocity Y (km/s) 5.419 1.972
    Velocity Z (km/s) 0.295 -0.348

    Orbital Parameters 国际轨道数据源

    Parameter OSCAR 15 (UOSAT 4) NOAA 16 DEB
    Semimajor Axis (a) 7164.077 km 7147.632 km
    Eccentricity (e) 0.001089 0.001161
    Inclination (i) 98.7752° 98.6697°
    RAAN 312.7279° 343.7866°
    Perigee Argument 96.3448° 246.5247°
    Mean Anomaly (M) 293.7046° 113.4719°
    Apogee 793.740 km 777.794 km
    Perigee 778.140 km 761.196 km
    Orbit Epoch 2026-09-12T02:45:35+0000 2026-09-11T04:53:51+0000

    OSCAR 15 (UOSAT 4) & NOAA 16 DEB Collision Probability (Pc) Trend

    OSCAR 15 (UOSAT 4) & NOAA 16 DEB Collision Probability (Pc) TrendNot Available

    OSCAR 15 (UOSAT 4) & NOAA 16 DEB Miss Distance (Miss Distance) Trend

    OSCAR 15 (UOSAT 4) & NOAA 16 DEB Miss Distance (Miss Distance) TrendNot Available

    OSCAR 15 (UOSAT 4)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    NOAA 16 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    OSCAR 15 (UOSAT 4)Collision Probability Trend

    Object 1 Probability TrendNot Available

    NOAA 16 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OSCAR 15 (UOSAT 4)

    No nearby objects data