Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.773557E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T23:53:45+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 55373
    NORAD ID 55373
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 63657
    NORAD ID 63657
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5581 STARLINK-33789
    Time of Closest Approach 2026-09-13T20:30:13+0000
    Collision Probability (Pc) 1.773557E-6
    Conjunction Distance (km) 1.744 km
    Relative Speed (km/s) 3.833 km/s
    Conjunction Risk Parameters R (Radial): -1.251 | I (In-track): -1.173 | C (Cross-track): -0.306
    Collision Risk Index (CRI) 0.4
    X Position (km) -74.523 -73.297
    Position Y (km) 5181.011 5180.084
    Position Z (km) 4489.407 4488.586
    Velocity X (km/s) -7.399 -7.365
    Velocity Y (km/s) 1.151 -1.361
    Velocity Z (km/s) -1.448 1.447

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5581 STARLINK-33789
    Semimajor Axis (a) 6861.199 km 6861.181 km
    Eccentricity (e) 0.000174 0.000061
    Inclination (i) 43.0050° 43.0003°
    RAAN 353.7142° 40.2219°
    Perigee Argument 266.8533° 258.8398°
    Mean Anomaly (M) 93.2120° 101.2385°
    Apogee 484.254 km 483.460 km
    Perigee 481.870 km 482.628 km
    Orbit Epoch 2026-09-11T06:50:23+0000 2026-09-10T16:51:39+0000

    STARLINK-5581 & STARLINK-33789 Collision Probability (Pc) Trend

    STARLINK-5581 & STARLINK-33789 Collision Probability (Pc) TrendNot Available

    STARLINK-5581 & STARLINK-33789 Miss Distance (Miss Distance) Trend

    STARLINK-5581 & STARLINK-33789 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5581Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33789Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5581Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33789Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5581

    No nearby objects data