Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    4.818721E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T20:18:05+0800
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    1 Object 1

    AOE ID 39891
    NORAD ID 39891
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 42810
    NORAD ID 42810
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SL-16 DEB IRIDIUM 124
    Time of Closest Approach 2026-09-12T12:51:58+0000
    Collision Probability (Pc) 4.818721E-6
    Conjunction Distance (km) 1.633 km
    Relative Speed (km/s) 13.548 km/s
    Conjunction Risk Parameters R (Radial): -1.627 | I (In-track): 0.048 | C (Cross-track): -0.108
    Collision Risk Index (CRI) 0.49
    X Position (km) -1328.068 -1328.465
    Position Y (km) -3183.827 -3184.483
    Position Z (km) -6243.226 -6244.667
    Velocity X (km/s) 6.5 -1.611
    Velocity Y (km/s) 2.522 -6.349
    Velocity Z (km/s) -2.667 3.583

    Orbital Parameters 国际轨道数据源

    Parameter SL-16 DEB IRIDIUM 124
    Semimajor Axis (a) 7120.398 km 7125.822 km
    Eccentricity (e) 0.000889 0.000240
    Inclination (i) 70.9979° 86.4431°
    RAAN 30.7115° 254.0464°
    Perigee Argument 47.8827° 89.3064°
    Mean Anomaly (M) 312.3066° 270.8412°
    Apogee 748.594 km 749.399 km
    Perigee 735.928 km 745.971 km
    Orbit Epoch 2026-09-11T15:47:08+0000 2026-09-11T23:50:18+0000

    SL-16 DEB & IRIDIUM 124 Collision Probability (Pc) Trend

    SL-16 DEB & IRIDIUM 124 Collision Probability (Pc) TrendNot Available

    SL-16 DEB & IRIDIUM 124 Miss Distance (Miss Distance) Trend

    SL-16 DEB & IRIDIUM 124 Miss Distance (Miss Distance) TrendNot Available

    SL-16 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 124Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SL-16 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 124Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SL-16 DEB

    No nearby objects data