Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.496726E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-11-03T09:04:15+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 25981
    NORAD ID 25981
    Object Type PAYLOAD
    Country
    ORB ORB
    ← VS →

    2 Object 2

    AOE ID 40498
    NORAD ID 40498
    Object Type DEBRIS
    Country
    US US

    Conjunction Constraints

    Parameter ORBCOMM FM 31 DMSP 5D-2 F13 DEB
    Time of Closest Approach 2026-11-05T10:16:01+0000
    Collision Probability (Pc) 1.496726E-6
    Conjunction Distance (km) 2.671 km
    Relative Speed (km/s) 13.622 km/s
    Conjunction Risk Parameters R (Radial): 1.877 | I (In-track): 0.789 | C (Cross-track): -1.728
    Collision Risk Index (CRI) 0.39
    X Position (km) -5541.199 -5542.585
    Position Y (km) 1938.162 1936.995
    Position Z (km) -4074.195 -4076.156
    Velocity X (km/s) -4.165 4.408
    Velocity Y (km/s) -5.35 -0.054
    Velocity Z (km/s) 3.129 -6.036

    Orbital Parameters 国际轨道数据源

    Parameter ORBCOMM FM 31 DMSP 5D-2 F13 DEB
    Semimajor Axis (a) 7142.491 km 7160.622 km
    Eccentricity (e) 0.000504 0.002809
    Inclination (i) 45.0220° 98.8759°
    RAAN 218.7822° 342.7752°
    Perigee Argument 19.9972° 209.7439°
    Mean Anomaly (M) 340.1073° 150.2149°
    Apogee 767.956 km 802.599 km
    Perigee 760.752 km 762.371 km
    Orbit Epoch 2026-11-02T10:49:50+0000 2026-11-01T08:03:25+0000

    ORBCOMM FM 31 & DMSP 5D-2 F13 DEB Collision Probability (Pc) Trend

    ORBCOMM FM 31 & DMSP 5D-2 F13 DEB Collision Probability (Pc) TrendNot Available

    ORBCOMM FM 31 & DMSP 5D-2 F13 DEB Miss Distance (Miss Distance) Trend

    ORBCOMM FM 31 & DMSP 5D-2 F13 DEB Miss Distance (Miss Distance) TrendNot Available

    ORBCOMM FM 31Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    DMSP 5D-2 F13 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ORBCOMM FM 31Collision Probability Trend

    Object 1 Probability TrendNot Available

    DMSP 5D-2 F13 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ORBCOMM FM 31

    No nearby objects data