Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.702246E-7
    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 43636
    NORAD ID 43636
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter TERRA CENTISPACE-1 S1
    Time of Closest Approach 2026-11-01T19:20:17+0000
    Collision Probability (Pc) 8.702246E-7
    Conjunction Distance (km) 2.329 km
    Relative Speed (km/s) 3.491 km/s
    Conjunction Risk Parameters R (Radial): -0.484 | I (In-track): 2.217 | C (Cross-track): -0.525
    Collision Risk Index (CRI) 0.34
    X Position (km) -386.063 -388.123
    Position Y (km) -919.938 -918.961
    Position Z (km) 6987.51 6987.036
    Velocity X (km/s) -7.385 -5.993
    Velocity Y (km/s) 1.364 4.527
    Velocity Z (km/s) -0.229 0.266

    Orbital Parameters 国际轨道数据源

    Parameter TERRA CENTISPACE-1 S1
    Semimajor Axis (a) 7067.486 km 7070.985 km
    Eccentricity (e) 0.000298 0.000973
    Inclination (i) 97.9290° 97.8665°
    RAAN 347.0285° 319.9714°
    Perigee Argument 139.4751° 61.7221°
    Mean Anomaly (M) 343.9856° 298.4961°
    Apogee 691.459 km 699.731 km
    Perigee 687.239 km 685.965 km
    Orbit Epoch 2026-10-29T22:27:23+0000 2026-10-29T23:30:16+0000

    TERRA & CENTISPACE-1 S1 Collision Probability (Pc) Trend

    TERRA & CENTISPACE-1 S1 Collision Probability (Pc) TrendNot Available

    TERRA & CENTISPACE-1 S1 Miss Distance (Miss Distance) Trend

    TERRA & CENTISPACE-1 S1 Miss Distance (Miss Distance) TrendNot Available

    TERRAMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    CENTISPACE-1 S1Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TERRACollision Probability Trend

    Object 1 Probability TrendNot Available

    CENTISPACE-1 S1Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TERRA

    No nearby objects data