Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.208667E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-22T23:47:20+0800
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    1 Object 1

    AOE ID 742
    NORAD ID 742
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    Name HJS-7A
    AOE ID 65617
    NORAD ID 65617
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter ECHO 2 DEB (METAL OBJ) HJS-7A
    Time of Closest Approach 2026-10-22T21:29:30+0000
    Collision Probability (Pc) 1.208667E-6
    Conjunction Distance (km) 2.445 km
    Relative Speed (km/s) 7.335 km/s
    Conjunction Risk Parameters R (Radial): 1.843 | I (In-track): 1.374 | C (Cross-track): 0.836
    Collision Risk Index (CRI) 0.37
    X Position (km) -3796.865 -3797.888
    Position Y (km) 3304.314 3303.723
    Position Z (km) -5539.617 -5541.757
    Velocity X (km/s) 2.868 -3.387
    Velocity Y (km/s) -4.638 -6.297
    Velocity Z (km/s) -4.886 -1.433

    Orbital Parameters 国际轨道数据源

    Parameter ECHO 2 DEB (METAL OBJ) HJS-7A
    Semimajor Axis (a) 7538.880 km 7481.914 km
    Eccentricity (e) 0.017170 0.000077
    Inclination (i) 81.4647° 49.9981°
    RAAN 310.1767° 253.7814°
    Perigee Argument 167.6892° 12.2699°
    Mean Anomaly (M) 192.8511° 347.8197°
    Apogee 1290.184 km 1104.351 km
    Perigee 1031.302 km 1103.203 km
    Orbit Epoch 2026-10-22T00:26:22+0000 2026-10-22T05:55:18+0000

    ECHO 2 DEB (METAL OBJ) & HJS-7A Collision Probability (Pc) Trend

    ECHO 2 DEB (METAL OBJ) & HJS-7A Collision Probability (Pc) TrendNot Available

    ECHO 2 DEB (METAL OBJ) & HJS-7A Miss Distance (Miss Distance) Trend

    ECHO 2 DEB (METAL OBJ) & HJS-7A Miss Distance (Miss Distance) TrendNot Available

    ECHO 2 DEB (METAL OBJ)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    HJS-7AMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ECHO 2 DEB (METAL OBJ)Collision Probability Trend

    Object 1 Probability TrendNot Available

    HJS-7ACollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ECHO 2 DEB (METAL OBJ)

    No nearby objects data