Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.675465E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-25T10:41:50+0800
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    1 Object 1

    AOE ID 55281
    NORAD ID 55281
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66748
    NORAD ID 66748
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5298 UMBRA-11
    Time of Closest Approach 2026-10-25T12:51:06+0000
    Collision Probability (Pc) 1.675465E-5
    Conjunction Distance (km) 1.153 km
    Relative Speed (km/s) 15.082 km/s
    Conjunction Risk Parameters R (Radial): -1.118 | I (In-track): 0.053 | C (Cross-track): 0.275
    Collision Risk Index (CRI) 0.59
    X Position (km) 5029.819 5028.956
    Position Y (km) 1714.428 1714.419
    Position Z (km) -4333.644 -4332.88
    Velocity X (km/s) -5.175 4.902
    Velocity Y (km/s) 1.789 0.332
    Velocity Z (km/s) -5.301 5.824

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5298 UMBRA-11
    Semimajor Axis (a) 6852.681 km 6848.729 km
    Eccentricity (e) 0.000318 0.000176
    Inclination (i) 69.9999° 97.4092°
    RAAN 185.2834° 11.3684°
    Perigee Argument 269.7294° 193.0032°
    Mean Anomaly (M) 90.3517° 167.1165°
    Apogee 476.727 km 471.801 km
    Perigee 472.361 km 469.383 km
    Orbit Epoch 2026-10-24T02:56:32+0000 2026-10-24T04:06:01+0000

    STARLINK-5298 & UMBRA-11 Collision Probability (Pc) Trend

    STARLINK-5298 & UMBRA-11 Collision Probability (Pc) TrendNot Available

    STARLINK-5298 & UMBRA-11 Miss Distance (Miss Distance) Trend

    STARLINK-5298 & UMBRA-11 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5298Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    UMBRA-11Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5298Collision Probability Trend

    Object 1 Probability TrendNot Available

    UMBRA-11Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5298

    No nearby objects data