Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.063492E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T23:28:21+0800
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    1 Object 1

    Name HJ-1A
    AOE ID 33320
    NORAD ID 33320
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 43641
    NORAD ID 43641
    Object Type PAYLOAD
    Country
    AR AR

    Conjunction Constraints

    Parameter HJ-1A SAOCOM 1-A
    Time of Closest Approach 2026-10-29T12:38:17+0000
    Collision Probability (Pc) 1.063492E-5
    Conjunction Distance (km) 1.305 km
    Relative Speed (km/s) 14.599 km/s
    Conjunction Risk Parameters R (Radial): 1.224 | I (In-track): -0.099 | C (Cross-track): -0.441
    Collision Risk Index (CRI) 0.56
    X Position (km) 1636.061 1636.76
    Position Y (km) -3482.587 -3483.011
    Position Z (km) -5856.617 -5857.634
    Velocity X (km/s) 0.932 -4.297
    Velocity Y (km/s) -6.298 4.716
    Velocity Z (km/s) 4.023 -4.006

    Orbital Parameters 国际轨道数据源

    Parameter HJ-1A SAOCOM 1-A
    Semimajor Axis (a) 6994.134 km 7000.711 km
    Eccentricity (e) 0.002045 0.000138
    Inclination (i) 97.6838° 97.8864°
    RAAN 281.1073° 125.1111°
    Perigee Argument 66.2596° 82.2057°
    Mean Anomaly (M) 294.0762° 277.9313°
    Apogee 630.302 km 623.541 km
    Perigee 601.692 km 621.607 km
    Orbit Epoch 2026-10-27T05:53:07+0000 2026-10-27T06:06:05+0000

    HJ-1A & SAOCOM 1-A Collision Probability (Pc) Trend

    HJ-1A & SAOCOM 1-A Collision Probability (Pc) TrendNot Available

    HJ-1A & SAOCOM 1-A Miss Distance (Miss Distance) Trend

    HJ-1A & SAOCOM 1-A Miss Distance (Miss Distance) TrendNot Available

    HJ-1AMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SAOCOM 1-AMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HJ-1ACollision Probability Trend

    Object 1 Probability TrendNot Available

    SAOCOM 1-ACollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HJ-1A

    No nearby objects data