Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    2.158131E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-17T03:15:50+0800
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    1 Object 1

    AOE ID 18509
    NORAD ID 18509
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 25682
    NORAD ID 25682
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SL-8 DEB * LANDSAT 7
    Time of Closest Approach 2026-10-16T19:59:16+0000
    Collision Probability (Pc) 2.158131E-4
    Conjunction Distance (km) 0.49 km
    Relative Speed (km/s) 14.967 km/s
    Conjunction Risk Parameters R (Radial): 0.136 | I (In-track): -0.04 | C (Cross-track): -0.468
    Collision Risk Index (CRI) 0.82
    X Position (km) 970.527 970.121
    Position Y (km) -5126.1 -5126.373
    Position Z (km) 4747.504 4747.494
    Velocity X (km/s) 3.629 -2.293
    Velocity Y (km/s) -4.101 4.634
    Velocity Z (km/s) -5.154 5.458

    Orbital Parameters 国际轨道数据源

    Parameter SL-8 DEB * LANDSAT 7
    Semimajor Axis (a) 7061.428 km 7058.422 km
    Eccentricity (e) 0.000579 0.000174
    Inclination (i) 73.9988° 97.8651°
    RAAN 116.8944° 287.4141°
    Perigee Argument 111.7018° 85.2268°
    Mean Anomaly (M) 62.8170° 285.4413°
    Apogee 687.383 km 681.512 km
    Perigee 679.199 km 679.058 km
    Orbit Epoch 2026-10-16T07:02:15+0000 2026-10-16T06:43:06+0000

    SL-8 DEB * & LANDSAT 7 Collision Probability (Pc) Trend

    SL-8 DEB * & LANDSAT 7 Collision Probability (Pc) TrendNot Available

    SL-8 DEB * & LANDSAT 7 Miss Distance (Miss Distance) Trend

    SL-8 DEB * & LANDSAT 7 Miss Distance (Miss Distance) TrendNot Available

    SL-8 DEB *Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    LANDSAT 7Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SL-8 DEB *Collision Probability Trend

    Object 1 Probability TrendNot Available

    LANDSAT 7Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SL-8 DEB *

    No nearby objects data