Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.832498E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-14T12:11:04+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 7560
    NORAD ID 7560
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 28054
    NORAD ID 28054
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SL-8 DEB DMSP 5D-3 F16 (USA 172)
    Time of Closest Approach 2026-09-14T22:23:06+0000
    Collision Probability (Pc) 1.832498E-6
    Conjunction Distance (km) 2.443 km
    Relative Speed (km/s) 14.808 km/s
    Conjunction Risk Parameters R (Radial): -1.506 | I (In-track): -0.17 | C (Cross-track): -1.914
    Collision Risk Index (CRI) 0.4
    X Position (km) -805.942 -807.999
    Position Y (km) -1500.073 -1500.628
    Position Z (km) 7013.95 7015.145
    Velocity X (km/s) 0.471 -1.764
    Velocity Y (km/s) -7.281 7.094
    Velocity Z (km/s) -1.455 1.311

    Orbital Parameters 国际轨道数据源

    Parameter SL-8 DEB DMSP 5D-3 F16 (USA 172)
    Semimajor Axis (a) 7244.980 km 7222.184 km
    Eccentricity (e) 0.006563 0.000599
    Inclination (i) 82.9717° 98.9865°
    RAAN 93.5806° 281.2699°
    Perigee Argument 41.2183° 253.5702°
    Mean Anomaly (M) 319.3920° 157.4765°
    Apogee 914.393 km 848.376 km
    Perigee 819.293 km 839.718 km
    Orbit Epoch 2026-09-13T06:40:37+0000 2026-09-13T20:47:06+0000

    SL-8 DEB & DMSP 5D-3 F16 (USA 172) Collision Probability (Pc) Trend

    SL-8 DEB & DMSP 5D-3 F16 (USA 172) Collision Probability (Pc) TrendNot Available

    SL-8 DEB & DMSP 5D-3 F16 (USA 172) Miss Distance (Miss Distance) Trend

    SL-8 DEB & DMSP 5D-3 F16 (USA 172) Miss Distance (Miss Distance) TrendNot Available

    SL-8 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    DMSP 5D-3 F16 (USA 172)Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SL-8 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    DMSP 5D-3 F16 (USA 172)Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SL-8 DEB

    No nearby objects data