Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.250784E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T09:20:37+0800
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    1 Object 1

    AOE ID 48577
    NORAD ID 48577
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53468
    NORAD ID 53468
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-2231 STARLINK-4400
    Time of Closest Approach 2026-10-21T15:43:54+0000
    Collision Probability (Pc) 1.250784E-6
    Conjunction Distance (km) 2.917 km
    Relative Speed (km/s) 12.368 km/s
    Conjunction Risk Parameters R (Radial): 2.654 | I (In-track): -0.711 | C (Cross-track): -0.98
    Collision Risk Index (CRI) 0.37
    X Position (km) -2206.42 -2205.266
    Position Y (km) -3487.16 -3486.847
    Position Z (km) 5455.935 5453.275
    Velocity X (km/s) 6.759 -4.541
    Velocity Y (km/s) -3.516 -4.177
    Velocity Z (km/s) 0.485 -4.496

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-2231 STARLINK-4400
    Semimajor Axis (a) 6848.901 km 6843.699 km
    Eccentricity (e) 0.000160 0.000138
    Inclination (i) 53.1584° 97.2868°
    RAAN 165.9532° 45.6124°
    Perigee Argument 90.1033° 90.3184°
    Mean Anomaly (M) 270.0152° 269.8217°
    Apogee 471.862 km 466.506 km
    Perigee 469.666 km 464.618 km
    Orbit Epoch 2026-10-19T08:33:00+0000 2026-10-19T06:48:08+0000

    STARLINK-2231 & STARLINK-4400 Collision Probability (Pc) Trend

    STARLINK-2231 & STARLINK-4400 Collision Probability (Pc) TrendNot Available

    STARLINK-2231 & STARLINK-4400 Miss Distance (Miss Distance) Trend

    STARLINK-2231 & STARLINK-4400 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-2231Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4400Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-2231Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4400Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-2231

    No nearby objects data