Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.359805E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T09:19:09+0800
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    1 Object 1

    AOE ID 4221
    NORAD ID 4221
    Object Type PAYLOAD
    Country
    DE DE
    ← VS →

    2 Object 2

    AOE ID 53498
    NORAD ID 53498
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter AZUR (GRS A) STARLINK-4439
    Time of Closest Approach 2026-10-21T01:17:47+0000
    Collision Probability (Pc) 1.359805E-6
    Conjunction Distance (km) 2.782 km
    Relative Speed (km/s) 12.815 km/s
    Conjunction Risk Parameters R (Radial): -1.65 | I (In-track): 1.197 | C (Cross-track): -1.892
    Collision Risk Index (CRI) 0.38
    X Position (km) -1945.03 -1944.713
    Position Y (km) -1095.966 -1098.324
    Position Z (km) -6476.06 -6477.501
    Velocity X (km/s) -7.173 4.317
    Velocity Y (km/s) 1.821 5.843
    Velocity Z (km/s) 1.712 -2.288

    Orbital Parameters 国际轨道数据源

    Parameter AZUR (GRS A) STARLINK-4439
    Semimajor Axis (a) 6804.485 km 6843.704 km
    Eccentricity (e) 0.017717 0.000115
    Inclination (i) 102.6526° 97.2862°
    RAAN 166.5083° 49.5213°
    Perigee Argument 178.4170° 101.4770°
    Mean Anomaly (M) 181.7658° 258.6602°
    Apogee 546.903 km 466.354 km
    Perigee 305.793 km 464.780 km
    Orbit Epoch 2026-10-19T18:34:58+0000 2026-10-19T07:28:48+0000

    AZUR (GRS A) & STARLINK-4439 Collision Probability (Pc) Trend

    AZUR (GRS A) & STARLINK-4439 Collision Probability (Pc) TrendNot Available

    AZUR (GRS A) & STARLINK-4439 Miss Distance (Miss Distance) Trend

    AZUR (GRS A) & STARLINK-4439 Miss Distance (Miss Distance) TrendNot Available

    AZUR (GRS A)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4439Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    AZUR (GRS A)Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4439Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with AZUR (GRS A)

    No nearby objects data