Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.21245E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T10:51:28+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 53719
    NORAD ID 53719
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 68248
    NORAD ID 68248
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4644 STARLINK-36997
    Time of Closest Approach 2026-10-21T09:58:00+0000
    Collision Probability (Pc) 1.21245E-6
    Conjunction Distance (km) 2.169 km
    Relative Speed (km/s) 4.931 km/s
    Conjunction Risk Parameters R (Radial): -0.862 | I (In-track): 1.885 | C (Cross-track): 0.638
    Collision Risk Index (CRI) 0.37
    X Position (km) -3715.301 -3716.801
    Position Y (km) -2243.818 -2242.399
    Position Z (km) -5294.818 -5295.481
    Velocity X (km/s) 2.096 5.359
    Velocity Y (km/s) -7.161 -5.191
    Velocity Z (km/s) 1.565 -1.564

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4644 STARLINK-36997
    Semimajor Axis (a) 6840.883 km 6840.751 km
    Eccentricity (e) 0.000117 0.000338
    Inclination (i) 53.1584° 53.1569°
    RAAN 287.2725° 335.5142°
    Perigee Argument 89.7686° 82.4342°
    Mean Anomaly (M) 270.3450° 277.7044°
    Apogee 463.546 km 464.927 km
    Perigee 461.946 km 460.301 km
    Orbit Epoch 2026-10-19T06:42:21+0000 2026-10-19T03:42:46+0000

    STARLINK-4644 & STARLINK-36997 Collision Probability (Pc) Trend

    STARLINK-4644 & STARLINK-36997 Collision Probability (Pc) TrendNot Available

    STARLINK-4644 & STARLINK-36997 Miss Distance (Miss Distance) Trend

    STARLINK-4644 & STARLINK-36997 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4644Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36997Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4644Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36997Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4644

    No nearby objects data