Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    5.314491E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-08-29T14:55:31+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 63281
    NORAD ID 63281
    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-33665 UMBRA-11
    Time of Closest Approach 2026-08-29T11:06:06+0000
    Collision Probability (Pc) 5.314491E-6
    Conjunction Distance (km) 1.406 km
    Relative Speed (km/s) 7.675 km/s
    Conjunction Risk Parameters R (Radial): -0.727 | I (In-track): 1.042 | C (Cross-track): 0.6
    Collision Risk Index (CRI) 0.5
    X Position (km) 4769.624 4769.744
    Position Y (km) -4163.925 -4163.418
    Position Z (km) -2647.138 -2645.832
    Velocity X (km/s) 5.322 1.486
    Velocity Y (km/s) 3.373 -2.711
    Velocity Z (km/s) 4.289 6.965

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-33665 UMBRA-11
    Semimajor Axis (a) 6861.110 km 6855.818 km
    Eccentricity (e) 0.000163 0.000334
    Inclination (i) 43.0034° 97.4152°
    RAAN 349.9310° 314.4624°
    Perigee Argument 265.7107° 88.7787°
    Mean Anomaly (M) 94.3558° 271.3836°
    Apogee 484.095 km 479.974 km
    Perigee 481.851 km 475.388 km
    Orbit Epoch 2026-08-28T16:25:16+0000 2026-08-28T03:47:47+0000

    STARLINK-33665 & UMBRA-11 Collision Probability (Pc) Trend

    STARLINK-33665 & UMBRA-11 Collision Probability (Pc) TrendNot Available

    STARLINK-33665 & UMBRA-11 Miss Distance (Miss Distance) Trend

    STARLINK-33665 & UMBRA-11 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-33665Miss 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-33665Collision Probability Trend

    Object 1 Probability TrendNot Available

    UMBRA-11Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-33665

    No nearby objects data