Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    8.563512E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T18:52:03+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 48766
    NORAD ID 48766
    Object Type DEBRIS
    Country
    US US

    Conjunction Constraints

    Parameter TERRA NOAA 17 DEB
    Time of Closest Approach 2026-11-01T21:49:35+0000
    Collision Probability (Pc) 8.563512E-5
    Conjunction Distance (km) 0.627 km
    Relative Speed (km/s) 9.144 km/s
    Conjunction Risk Parameters R (Radial): -0.549 | I (In-track): -0.238 | C (Cross-track): -0.181
    Collision Risk Index (CRI) 0.74
    X Position (km) 1004.426 1004.148
    Position Y (km) 805.814 805.973
    Position Z (km) -6958.445 -6957.907
    Velocity X (km/s) 7.303 0.607
    Velocity Y (km/s) -1.429 -7.43
    Velocity Z (km/s) 0.888 -0.777

    Orbital Parameters 国际轨道数据源

    Parameter TERRA NOAA 17 DEB
    Semimajor Axis (a) 7067.486 km 7068.538 km
    Eccentricity (e) 0.000298 0.000539
    Inclination (i) 97.9290° 98.6158°
    RAAN 347.0285° 269.3704°
    Perigee Argument 139.4751° 182.4360°
    Mean Anomaly (M) 343.9856° 177.6814°
    Apogee 691.459 km 694.212 km
    Perigee 687.239 km 686.590 km
    Orbit Epoch 2026-10-29T22:27:23+0000 2026-10-28T16:20:58+0000

    TERRA & NOAA 17 DEB Collision Probability (Pc) Trend

    TERRA & NOAA 17 DEB Collision Probability (Pc) TrendNot Available

    TERRA & NOAA 17 DEB Miss Distance (Miss Distance) Trend

    TERRA & NOAA 17 DEB Miss Distance (Miss Distance) TrendNot Available

    TERRAMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    NOAA 17 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TERRACollision Probability Trend

    Object 1 Probability TrendNot Available

    NOAA 17 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TERRA

    No nearby objects data