Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.196553E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T12:03:32+0800
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    1 Object 1

    AOE ID 37831
    NORAD ID 37831
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 69888
    NORAD ID 69888
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter NOAA 12 DEB SPEAR-1B
    Time of Closest Approach 2026-10-30T21:02:25+0000
    Collision Probability (Pc) 1.196553E-5
    Conjunction Distance (km) 1.267 km
    Relative Speed (km/s) 14.889 km/s
    Conjunction Risk Parameters R (Radial): -0.028 | I (In-track): -0.22 | C (Cross-track): 1.247
    Collision Risk Index (CRI) 0.57
    X Position (km) -5190.042 -5189.679
    Position Y (km) -1484.202 -1485.415
    Position Z (km) 4403.945 4403.919
    Velocity X (km/s) -4.907 4.176
    Velocity Y (km/s) 0.03 2.564
    Velocity Z (km/s) -5.758 5.764

    Orbital Parameters 国际轨道数据源

    Parameter NOAA 12 DEB SPEAR-1B
    Semimajor Axis (a) 6969.885 km 6970.876 km
    Eccentricity (e) 0.000064 0.000599
    Inclination (i) 98.1137° 97.7458°
    RAAN 7.5274° 200.6933°
    Perigee Argument 215.0979° 117.2633°
    Mean Anomaly (M) 169.2531° 242.9197°
    Apogee 592.197 km 596.918 km
    Perigee 591.299 km 588.560 km
    Orbit Epoch 2026-10-29T04:17:00+0000 2026-10-29T04:36:54+0000

    NOAA 12 DEB & SPEAR-1B Collision Probability (Pc) Trend

    NOAA 12 DEB & SPEAR-1B Collision Probability (Pc) TrendNot Available

    NOAA 12 DEB & SPEAR-1B Miss Distance (Miss Distance) Trend

    NOAA 12 DEB & SPEAR-1B Miss Distance (Miss Distance) TrendNot Available

    NOAA 12 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SPEAR-1BMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NOAA 12 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    SPEAR-1BCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NOAA 12 DEB

    No nearby objects data