Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.004771E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-23T13:13:30+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 51789
    NORAD ID 51789
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 61781
    NORAD ID 61781
    Object Type UNKNOWN
    Country
    TBD TBD

    Conjunction Constraints

    Parameter STARLINK-3639 OBJECT AY
    Time of Closest Approach 2026-10-23T20:37:21+0000
    Collision Probability (Pc) 3.004771E-6
    Conjunction Distance (km) 1.937 km
    Relative Speed (km/s) 14.024 km/s
    Conjunction Risk Parameters R (Radial): 1.664 | I (In-track): -0.405 | C (Cross-track): -0.904
    Collision Risk Index (CRI) 0.45
    X Position (km) -4515.022 -4516.142
    Position Y (km) 1895.135 1896.51
    Position Z (km) 4767.504 4768.281
    Velocity X (km/s) -5.167 5.363
    Velocity Y (km/s) -4.765 -0.789
    Velocity Z (km/s) -2.991 5.373

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3639 OBJECT AY
    Semimajor Axis (a) 6840.877 km 6832.021 km
    Eccentricity (e) 0.000135 0.001229
    Inclination (i) 53.1627° 97.2779°
    RAAN 30.2979° 163.3921°
    Perigee Argument 86.9521° 202.2702°
    Mean Anomaly (M) 273.1637° 157.8010°
    Apogee 463.667 km 462.284 km
    Perigee 461.813 km 445.484 km
    Orbit Epoch 2026-10-22T12:50:24+0000 2026-10-22T20:59:48+0000

    STARLINK-3639 & OBJECT AY Collision Probability (Pc) Trend

    STARLINK-3639 & OBJECT AY Collision Probability (Pc) TrendNot Available

    STARLINK-3639 & OBJECT AY Miss Distance (Miss Distance) Trend

    STARLINK-3639 & OBJECT AY Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3639Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    OBJECT AYMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3639Collision Probability Trend

    Object 1 Probability TrendNot Available

    OBJECT AYCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3639

    No nearby objects data