Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.338223E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T20:05:13+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 48370
    NORAD ID 48370
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53469
    NORAD ID 53469
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-2621 STARLINK-4399
    Time of Closest Approach 2026-09-07T13:08:18+0000
    Collision Probability (Pc) 1.338223E-6
    Conjunction Distance (km) 2.949 km
    Relative Speed (km/s) 14.251 km/s
    Conjunction Risk Parameters R (Radial): -2.928 | I (In-track): 0.125 | C (Cross-track): 0.318
    Collision Risk Index (CRI) 0.38
    X Position (km) 5228.636 5226.276
    Position Y (km) 206.425 206.626
    Position Z (km) 4409.946 4408.19
    Velocity X (km/s) 2.819 -4.806
    Velocity Y (km/s) 6.103 -1.457
    Velocity Z (km/s) -3.618 5.75

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-2621 STARLINK-4399
    Semimajor Axis (a) 6848.776 km 6843.717 km
    Eccentricity (e) 0.000106 0.000100
    Inclination (i) 53.1587° 97.2861°
    RAAN 232.4946° 6.0028°
    Perigee Argument 68.2844° 99.5977°
    Mean Anomaly (M) 291.8270° 260.5379°
    Apogee 471.362 km 466.266 km
    Perigee 469.916 km 464.894 km
    Orbit Epoch 2026-09-05T04:12:50+0000 2026-09-05T01:26:57+0000

    STARLINK-2621 & STARLINK-4399 Collision Probability (Pc) Trend

    STARLINK-2621 & STARLINK-4399 Collision Probability (Pc) TrendNot Available

    STARLINK-2621 & STARLINK-4399 Miss Distance (Miss Distance) Trend

    STARLINK-2621 & STARLINK-4399 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-2621Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4399Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-2621Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4399Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-2621

    No nearby objects data