Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.523099E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-25T03:47:06+0800
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    1 Object 1

    AOE ID 17369
    NORAD ID 17369
    Object Type PAYLOAD
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 61561
    NORAD ID 61561
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter COSMOS 1818 QIANFAN-28
    Time of Closest Approach 2026-10-26T02:18:39+0000
    Collision Probability (Pc) 1.523099E-6
    Conjunction Distance (km) 2.69 km
    Relative Speed (km/s) 14.302 km/s
    Conjunction Risk Parameters R (Radial): -1.612 | I (In-track): 0.599 | C (Cross-track): 2.068
    Collision Risk Index (CRI) 0.39
    X Position (km) 4395.704 4393.109
    Position Y (km) 3756.858 3757.37
    Position Z (km) 4241.876 4241.385
    Velocity X (km/s) 0.316 -3.462
    Velocity Y (km/s) 5.405 -2.746
    Velocity Z (km/s) -5.119 6.009

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 1818 QIANFAN-28
    Semimajor Axis (a) 7163.574 km 7174.787 km
    Eccentricity (e) 0.002078 0.000603
    Inclination (i) 65.0103° 88.9914°
    RAAN 245.6891° 40.0114°
    Perigee Argument 279.9229° 347.7845°
    Mean Anomaly (M) 79.9511° 12.3202°
    Apogee 800.321 km 800.976 km
    Perigee 770.553 km 792.324 km
    Orbit Epoch 2026-10-24T06:04:47+0000 2026-10-24T06:25:58+0000

    COSMOS 1818 & QIANFAN-28 Collision Probability (Pc) Trend

    COSMOS 1818 & QIANFAN-28 Collision Probability (Pc) TrendNot Available

    COSMOS 1818 & QIANFAN-28 Miss Distance (Miss Distance) Trend

    COSMOS 1818 & QIANFAN-28 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 1818Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-28Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 1818Collision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-28Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 1818

    No nearby objects data