Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.260093E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T22:26:43+0800
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    1 Object 1

    AOE ID 1982
    NORAD ID 1982
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 15528
    NORAD ID 15528
    Object Type DEBRIS
    Country
    CIS CIS

    Conjunction Constraints

    Parameter ESSA 1 (OT-3) SL-8 DEB *
    Time of Closest Approach 2026-10-30T01:33:12+0000
    Collision Probability (Pc) 4.260093E-6
    Conjunction Distance (km) 1.727 km
    Relative Speed (km/s) 14.555 km/s
    Conjunction Risk Parameters R (Radial): -1.401 | I (In-track): 0.268 | C (Cross-track): 0.971
    Collision Risk Index (CRI) 0.48
    X Position (km) 1321.364 1321.27
    Position Y (km) -2041.612 -2042.935
    Position Z (km) 6616.918 6618.022
    Velocity X (km/s) -6.027 7.343
    Velocity Y (km/s) 3.846 -0.307
    Velocity Z (km/s) 2.411 -1.564

    Orbital Parameters 国际轨道数据源

    Parameter ESSA 1 (OT-3) SL-8 DEB *
    Semimajor Axis (a) 7109.075 km 7053.433 km
    Eccentricity (e) 0.008083 0.001087
    Inclination (i) 97.8017° 74.0177°
    RAAN 321.9941° 179.7520°
    Perigee Argument 56.9479° 237.4121°
    Mean Anomaly (M) 303.9446° 277.4712°
    Apogee 788.404 km 682.960 km
    Perigee 673.472 km 667.632 km
    Orbit Epoch 2026-10-27T00:16:42+0000 2026-10-27T03:20:44+0000

    ESSA 1 (OT-3) & SL-8 DEB * Collision Probability (Pc) Trend

    ESSA 1 (OT-3) & SL-8 DEB * Collision Probability (Pc) TrendNot Available

    ESSA 1 (OT-3) & SL-8 DEB * Miss Distance (Miss Distance) Trend

    ESSA 1 (OT-3) & SL-8 DEB * Miss Distance (Miss Distance) TrendNot Available

    ESSA 1 (OT-3)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SL-8 DEB *Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ESSA 1 (OT-3)Collision Probability Trend

    Object 1 Probability TrendNot Available

    SL-8 DEB *Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ESSA 1 (OT-3)

    No nearby objects data