Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.571604E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T21:39:44+0800
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    1 Object 1

    AOE ID 25159
    NORAD ID 25159
    Object Type PAYLOAD
    Country
    ORB ORB
    VS

    2 Object 2

    AOE ID 49050
    NORAD ID 49050
    Object Type DEBRIS
    Country
    CIS CIS

    Conjunction Constraints

    Parameter ORBCOMM FM 4 SL-16 DEB
    Time of Closest Approach 2026-09-12T16:47:02+0000
    Collision Probability (Pc) 1.571604E-6
    Conjunction Distance (km) 2.005 km
    Relative Speed (km/s) 5.689 km/s
    Conjunction Risk Parameters R (Radial): 1.891 | I (In-track): -0.612 | C (Cross-track): 0.268
    Collision Risk Index (CRI) 0.39
    X Position (km) 5477.079 5478.858
    Position Y (km) -2330.449 -2331.228
    Position Z (km) 3997.375 3997.874
    Velocity X (km/s) -4.651 -2.376
    Velocity Y (km/s) -1.026 4.187
    Velocity Z (km/s) 5.724 5.697

    Orbital Parameters 国际轨道数据源

    Parameter ORBCOMM FM 4 SL-16 DEB
    Semimajor Axis (a) 7150.355 km 7178.318 km
    Eccentricity (e) 0.004076 0.001177
    Inclination (i) 107.9605° 71.0100°
    RAAN 346.5085° 326.7485°
    Perigee Argument 178.4608° 334.1596°
    Mean Anomaly (M) 181.6664° 25.8944°
    Apogee 801.363 km 808.628 km
    Perigee 743.073 km 791.734 km
    Orbit Epoch 2026-09-11T05:30:12+0000 2026-09-11T05:17:54+0000

    ORBCOMM FM 4 & SL-16 DEB Collision Probability (Pc) Trend

    ORBCOMM FM 4 & SL-16 DEB Collision Probability (Pc) TrendNot Available

    ORBCOMM FM 4 & SL-16 DEB Miss Distance (Miss Distance) Trend

    ORBCOMM FM 4 & SL-16 DEB Miss Distance (Miss Distance) TrendNot Available

    ORBCOMM FM 4Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SL-16 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ORBCOMM FM 4Collision Probability Trend

    Object 1 Probability TrendNot Available

    SL-16 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ORBCOMM FM 4

    No nearby objects data