Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.106888E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T18:40:38+0800
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    1 Object 1

    Name SJ-7
    AOE ID 28737
    NORAD ID 28737
    Object Type PAYLOAD
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 66729
    NORAD ID 66729
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SJ-7 FLOCK 4H 26
    Time of Closest Approach 2026-09-06T17:23:15+0000
    Collision Probability (Pc) 1.106888E-6
    Conjunction Distance (km) 2.292 km
    Relative Speed (km/s) 5.111 km/s
    Conjunction Risk Parameters R (Radial): -0.229 | I (In-track): -2.147 | C (Cross-track): 0.766
    Collision Risk Index (CRI) 0.36
    X Position (km) 848.857 847.627
    Position Y (km) 461.849 463.772
    Position Z (km) -6826.546 -6826.337
    Velocity X (km/s) 1.625 5.921
    Velocity Y (km/s) -7.404 -4.731
    Velocity Z (km/s) -0.303 0.414

    Orbital Parameters 国际轨道数据源

    Parameter SJ-7 FLOCK 4H 26
    Semimajor Axis (a) 6876.303 km 6882.586 km
    Eccentricity (e) 0.001690 0.000651
    Inclination (i) 97.7248° 97.4130°
    RAAN 280.3262° 320.2410°
    Perigee Argument 112.5984° 92.6281°
    Mean Anomaly (M) 247.7041° 267.5699°
    Apogee 509.785 km 508.931 km
    Perigee 486.547 km 499.967 km
    Orbit Epoch 2026-09-05T00:47:01+0000 2026-09-05T03:51:43+0000

    SJ-7 & FLOCK 4H 26 Collision Probability (Pc) Trend

    SJ-7 & FLOCK 4H 26 Collision Probability (Pc) TrendNot Available

    SJ-7 & FLOCK 4H 26 Miss Distance (Miss Distance) Trend

    SJ-7 & FLOCK 4H 26 Miss Distance (Miss Distance) TrendNot Available

    SJ-7Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FLOCK 4H 26Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SJ-7Collision Probability Trend

    Object 1 Probability TrendNot Available

    FLOCK 4H 26Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SJ-7

    No nearby objects data