Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.774306E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T23:58:46+0800
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    1 Object 1

    AOE ID 27609
    NORAD ID 27609
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    Name HJ-2A
    AOE ID 46478
    NORAD ID 46478
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter TRAILBLAZER 2 HJ-2A
    Time of Closest Approach 2026-11-01T22:44:14+0000
    Collision Probability (Pc) 2.774306E-6
    Conjunction Distance (km) 1.938 km
    Relative Speed (km/s) 12.393 km/s
    Conjunction Risk Parameters R (Radial): 1.774 | I (In-track): 0.446 | C (Cross-track): -0.64
    Collision Risk Index (CRI) 0.44
    X Position (km) 3009.635 3009.471
    Position Y (km) 216.205 215.727
    Position Z (km) 6331.958 6330.088
    Velocity X (km/s) -0.297 -6.265
    Velocity Y (km/s) 7.52 -2.856
    Velocity Z (km/s) -0.139 3.067

    Orbital Parameters 国际轨道数据源

    Parameter TRAILBLAZER 2 HJ-2A
    Semimajor Axis (a) 7002.958 km 7018.455 km
    Eccentricity (e) 0.003875 0.000325
    Inclination (i) 64.5543° 97.8728°
    RAAN 281.8081° 18.0572°
    Perigee Argument 225.1616° 170.6874°
    Mean Anomaly (M) 134.6340° 189.4397°
    Apogee 651.955 km 642.601 km
    Perigee 597.687 km 638.035 km
    Orbit Epoch 2026-10-29T16:33:31+0000 2026-10-29T22:52:41+0000

    TRAILBLAZER 2 & HJ-2A Collision Probability (Pc) Trend

    TRAILBLAZER 2 & HJ-2A Collision Probability (Pc) TrendNot Available

    TRAILBLAZER 2 & HJ-2A Miss Distance (Miss Distance) Trend

    TRAILBLAZER 2 & HJ-2A Miss Distance (Miss Distance) TrendNot Available

    TRAILBLAZER 2Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    HJ-2AMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TRAILBLAZER 2Collision Probability Trend

    Object 1 Probability TrendNot Available

    HJ-2ACollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TRAILBLAZER 2

    No nearby objects data