Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.617347E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T18:52:04+0800
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    1 Object 1

    Name TERRA
    AOE ID 25994
    NORAD ID 25994
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 40086
    NORAD ID 40086
    Object Type PAYLOAD
    Country
    ORB ORB

    Conjunction Constraints

    Parameter TERRA ORBCOMM FM 109
    Time of Closest Approach 2026-10-31T14:58:02+0000
    Collision Probability (Pc) 1.617347E-6
    Conjunction Distance (km) 2.592 km
    Relative Speed (km/s) 14.318 km/s
    Conjunction Risk Parameters R (Radial): 2.497 | I (In-track): 0.216 | C (Cross-track): -0.66
    Collision Risk Index (CRI) 0.39
    X Position (km) 6934.787 6937.369
    Position Y (km) -1341.948 -1341.811
    Position Z (km) -355.77 -355.591
    Velocity X (km/s) 0.161 0.709
    Velocity Y (km/s) -1.087 5.084
    Velocity Z (km/s) 7.427 -5.481

    Orbital Parameters 国际轨道数据源

    Parameter TERRA ORBCOMM FM 109
    Semimajor Axis (a) 7067.486 km 7074.679 km
    Eccentricity (e) 0.000298 0.000099
    Inclination (i) 97.9290° 47.0009°
    RAAN 347.0285° 178.5144°
    Perigee Argument 139.4751° 114.1459°
    Mean Anomaly (M) 343.9856° 245.9530°
    Apogee 691.459 km 697.242 km
    Perigee 687.239 km 695.842 km
    Orbit Epoch 2026-10-29T22:27:23+0000 2026-10-29T01:18:58+0000

    TERRA & ORBCOMM FM 109 Collision Probability (Pc) Trend

    TERRA & ORBCOMM FM 109 Collision Probability (Pc) TrendNot Available

    TERRA & ORBCOMM FM 109 Miss Distance (Miss Distance) Trend

    TERRA & ORBCOMM FM 109 Miss Distance (Miss Distance) TrendNot Available

    TERRAMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ORBCOMM FM 109Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TERRACollision Probability Trend

    Object 1 Probability TrendNot Available

    ORBCOMM FM 109Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TERRA

    No nearby objects data