Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.316277E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-08-27T08:27:22+0800
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    1 Object 1

    AOE ID 48737
    NORAD ID 48737
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 52999
    NORAD ID 52999
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter NOAA 17 DEB STARLINK-4217
    Time of Closest Approach 2026-08-28T15:57:46+0000
    Collision Probability (Pc) 1.316277E-6
    Conjunction Distance (km) 2.568 km
    Relative Speed (km/s) 9.809 km/s
    Conjunction Risk Parameters R (Radial): 0.371 | I (In-track): 1.946 | C (Cross-track): -1.633
    Collision Risk Index (CRI) 0.37
    X Position (km) 3862.476 3864.745
    Position Y (km) -2251.086 -2251.09
    Position Z (km) -5184.823 -5183.621
    Velocity X (km/s) 3.963 5.499
    Velocity Y (km/s) -4.354 4.898
    Velocity Z (km/s) 4.846 1.974

    Orbital Parameters 国际轨道数据源

    Parameter NOAA 17 DEB STARLINK-4217
    Semimajor Axis (a) 6842.641 km 6840.887 km
    Eccentricity (e) 0.000262 0.000122
    Inclination (i) 98.6978° 53.1600°
    RAAN 316.9401° 43.1491°
    Perigee Argument 347.4839° 90.9441°
    Mean Anomaly (M) 12.6334° 269.1701°
    Apogee 466.296 km 463.586 km
    Perigee 462.712 km 461.914 km
    Orbit Epoch 2026-08-26T10:57:24+0000 2026-08-25T21:03:06+0000

    NOAA 17 DEB & STARLINK-4217 Collision Probability (Pc) Trend

    NOAA 17 DEB & STARLINK-4217 Collision Probability (Pc) TrendNot Available

    NOAA 17 DEB & STARLINK-4217 Miss Distance (Miss Distance) Trend

    NOAA 17 DEB & STARLINK-4217 Miss Distance (Miss Distance) TrendNot Available

    NOAA 17 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4217Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NOAA 17 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4217Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NOAA 17 DEB

    No nearby objects data