Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.309618E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-25T04:40:50+0800
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    1 Object 1

    Name REX
    AOE ID 21527
    NORAD ID 21527
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 61558
    NORAD ID 61558
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter REX QIANFAN-25
    Time of Closest Approach 2026-10-24T22:20:05+0000
    Collision Probability (Pc) 3.309618E-6
    Conjunction Distance (km) 1.878 km
    Relative Speed (km/s) 14.293 km/s
    Conjunction Risk Parameters R (Radial): 1.566 | I (In-track): -0.279 | C (Cross-track): -0.997
    Collision Risk Index (CRI) 0.45
    X Position (km) 157.255 158.163
    Position Y (km) 317.842 317.356
    Position Z (km) 7222.175 7223.744
    Velocity X (km/s) 2.131 -5.479
    Velocity Y (km/s) 7.076 -5.002
    Velocity Z (km/s) -0.349 0.342

    Orbital Parameters 国际轨道数据源

    Parameter REX QIANFAN-25
    Semimajor Axis (a) 7191.326 km 7250.691 km
    Eccentricity (e) 0.006618 0.001531
    Inclination (i) 89.5338° 88.9898°
    RAAN 253.2629° 42.5162°
    Perigee Argument 284.3162° 75.6502°
    Mean Anomaly (M) 75.0688° 284.6379°
    Apogee 860.782 km 883.656 km
    Perigee 765.596 km 861.452 km
    Orbit Epoch 2026-10-24T03:20:30+0000 2026-10-24T06:33:05+0000

    REX & QIANFAN-25 Collision Probability (Pc) Trend

    REX & QIANFAN-25 Collision Probability (Pc) TrendNot Available

    REX & QIANFAN-25 Miss Distance (Miss Distance) Trend

    REX & QIANFAN-25 Miss Distance (Miss Distance) TrendNot Available

    REXMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-25Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    REXCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-25Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with REX

    No nearby objects data