Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.248641E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T21:46:21+0800
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    1 Object 1

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

    2 Object 2

    Name OAO 2
    AOE ID 3597
    NORAD ID 3597
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter ESSA 1 (OT-3) OAO 2
    Time of Closest Approach 2026-10-28T08:26:27+0000
    Collision Probability (Pc) 1.248641E-6
    Conjunction Distance (km) 2.756 km
    Relative Speed (km/s) 10.804 km/s
    Conjunction Risk Parameters R (Radial): 1.48 | I (In-track): -1.613 | C (Cross-track): -1.674
    Collision Risk Index (CRI) 0.37
    X Position (km) -5011.478 -5010.901
    Position Y (km) 3058.693 3059.965
    Position Z (km) 4008.08 4010.455
    Velocity X (km/s) -2.963 -4.32
    Velocity Y (km/s) 3.25 -6.069
    Velocity Z (km/s) -6.061 -0.767

    Orbital Parameters 国际轨道数据源

    Parameter ESSA 1 (OT-3) OAO 2
    Semimajor Axis (a) 7109.075 km 7112.313 km
    Eccentricity (e) 0.008083 0.000614
    Inclination (i) 97.8017° 34.9939°
    RAAN 321.9941° 51.9927°
    Perigee Argument 56.9479° 257.9019°
    Mean Anomaly (M) 303.9446° 102.0984°
    Apogee 788.404 km 738.545 km
    Perigee 673.472 km 729.807 km
    Orbit Epoch 2026-10-27T00:16:42+0000 2026-10-27T07:08:44+0000

    ESSA 1 (OT-3) & OAO 2 Collision Probability (Pc) Trend

    ESSA 1 (OT-3) & OAO 2 Collision Probability (Pc) TrendNot Available

    ESSA 1 (OT-3) & OAO 2 Miss Distance (Miss Distance) Trend

    ESSA 1 (OT-3) & OAO 2 Miss Distance (Miss Distance) TrendNot Available

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

    Object 1 Miss Distance TrendNot Available

    OAO 2Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ESSA 1 (OT-3)Collision Probability Trend

    Object 1 Probability TrendNot Available

    OAO 2Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ESSA 1 (OT-3)

    No nearby objects data