Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.511645E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T05:34:40+0800
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    1 Object 1

    AOE ID 25077
    NORAD ID 25077
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 28342
    NORAD ID 28342
    Object Type DEBRIS
    Country
    US US

    Conjunction Constraints

    Parameter IRIDIUM 42 DMSP 5D-2 F11 DEB
    Time of Closest Approach 2026-09-16T02:01:27+0000
    Collision Probability (Pc) 1.511645E-5
    Conjunction Distance (km) 1.071 km
    Relative Speed (km/s) 9.035 km/s
    Conjunction Risk Parameters R (Radial): -1.065 | I (In-track): 0.078 | C (Cross-track): -0.058
    Collision Risk Index (CRI) 0.59
    X Position (km) -1185.506 -1185.423
    Position Y (km) -658.574 -658.494
    Position Z (km) 7008.235 7007.171
    Velocity X (km/s) -4.849 -6.634
    Velocity Y (km/s) -5.525 3.318
    Velocity Z (km/s) -1.336 -0.858

    Orbital Parameters 国际轨道数据源

    Parameter IRIDIUM 42 DMSP 5D-2 F11 DEB
    Semimajor Axis (a) 7147.466 km 7137.419 km
    Eccentricity (e) 0.000290 0.006519
    Inclination (i) 86.3938° 98.9566°
    RAAN 48.3738° 333.2880°
    Perigee Argument 84.3925° 198.8766°
    Mean Anomaly (M) 275.7603° 161.0003°
    Apogee 771.399 km 805.812 km
    Perigee 767.259 km 712.752 km
    Orbit Epoch 2026-09-15T08:50:39+0000 2026-09-14T22:53:17+0000

    IRIDIUM 42 & DMSP 5D-2 F11 DEB Collision Probability (Pc) Trend

    IRIDIUM 42 & DMSP 5D-2 F11 DEB Collision Probability (Pc) TrendNot Available

    IRIDIUM 42 & DMSP 5D-2 F11 DEB Miss Distance (Miss Distance) Trend

    IRIDIUM 42 & DMSP 5D-2 F11 DEB Miss Distance (Miss Distance) TrendNot Available

    IRIDIUM 42Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    DMSP 5D-2 F11 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    IRIDIUM 42Collision Probability Trend

    Object 1 Probability TrendNot Available

    DMSP 5D-2 F11 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with IRIDIUM 42

    No nearby objects data