Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.380359E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T21:31:29+0800
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    1 Object 1

    AOE ID 3749
    NORAD ID 3749
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

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

    Conjunction Constraints

    Parameter SL-8 DEB SPEAR-1B
    Time of Closest Approach 2026-10-28T10:18:23+0000
    Collision Probability (Pc) 1.380359E-6
    Conjunction Distance (km) 2.879 km
    Relative Speed (km/s) 14.255 km/s
    Conjunction Risk Parameters R (Radial): 1.514 | I (In-track): -0.887 | C (Cross-track): -2.281
    Collision Risk Index (CRI) 0.38
    X Position (km) 4762.912 4760.533
    Position Y (km) 1001.242 1002.853
    Position Z (km) -5003.886 -5003.716
    Velocity X (km/s) 1.941 -4.892
    Velocity Y (km/s) 6.714 -2.523
    Velocity Z (km/s) 3.268 -5.169

    Orbital Parameters 国际轨道数据源

    Parameter SL-8 DEB SPEAR-1B
    Semimajor Axis (a) 7292.411 km 6970.898 km
    Eccentricity (e) 0.044013 0.000586
    Inclination (i) 56.1117° 97.7458°
    RAAN 59.5457° 198.5182°
    Perigee Argument 307.8750° 122.9885°
    Mean Anomaly (M) 48.3172° 237.1898°
    Apogee 1235.238 km 596.844 km
    Perigee 593.310 km 588.678 km
    Orbit Epoch 2026-10-27T07:02:05+0000 2026-10-26T23:29:13+0000

    SL-8 DEB & SPEAR-1B Collision Probability (Pc) Trend

    SL-8 DEB & SPEAR-1B Collision Probability (Pc) TrendNot Available

    SL-8 DEB & SPEAR-1B Miss Distance (Miss Distance) Trend

    SL-8 DEB & SPEAR-1B Miss Distance (Miss Distance) TrendNot Available

    SL-8 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

    SL-8 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    SPEAR-1BCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SL-8 DEB

    No nearby objects data