Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.095215E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T14:57:19+0800
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    1 Object 1

    Name NOAA 15
    AOE ID 25338
    NORAD ID 25338
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 61560
    NORAD ID 61560
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter NOAA 15 QIANFAN-27
    Time of Closest Approach 2026-10-27T11:08:51+0000
    Collision Probability (Pc) 1.095215E-6
    Conjunction Distance (km) 2.918 km
    Relative Speed (km/s) 9.8 km/s
    Conjunction Risk Parameters R (Radial): 0.656 | I (In-track): 2.135 | C (Cross-track): -1.878
    Collision Risk Index (CRI) 0.36
    X Position (km) 917.438 920.341
    Position Y (km) 599.417 599.392
    Position Z (km) -7098.422 -7098.712
    Velocity X (km/s) 5.454 5.651
    Velocity Y (km/s) -5.055 4.705
    Velocity Z (km/s) 0.284 1.134

    Orbital Parameters 国际轨道数据源

    Parameter NOAA 15 QIANFAN-27
    Semimajor Axis (a) 7179.315 km 7177.781 km
    Eccentricity (e) 0.000955 0.000589
    Inclination (i) 98.5017° 88.9897°
    RAAN 317.0367° 39.6872°
    Perigee Argument 326.5656° 341.2366°
    Mean Anomaly (M) 33.4921° 18.8610°
    Apogee 808.035 km 803.874 km
    Perigee 794.321 km 795.414 km
    Orbit Epoch 2026-10-26T23:46:48+0000 2026-10-26T22:04:12+0000

    NOAA 15 & QIANFAN-27 Collision Probability (Pc) Trend

    NOAA 15 & QIANFAN-27 Collision Probability (Pc) TrendNot Available

    NOAA 15 & QIANFAN-27 Miss Distance (Miss Distance) Trend

    NOAA 15 & QIANFAN-27 Miss Distance (Miss Distance) TrendNot Available

    NOAA 15Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-27Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NOAA 15Collision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-27Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NOAA 15

    No nearby objects data