Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.099215E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T01:08:09+0800
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    1 Object 1

    AOE ID 48648
    NORAD ID 48648
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 51866
    NORAD ID 51866
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-2521 STARLINK-3553
    Time of Closest Approach 2026-10-29T15:16:18+0000
    Collision Probability (Pc) 3.099215E-6
    Conjunction Distance (km) 1.693 km
    Relative Speed (km/s) 8.179 km/s
    Conjunction Risk Parameters R (Radial): 1.072 | I (In-track): 1.103 | C (Cross-track): 0.707
    Collision Risk Index (CRI) 0.45
    X Position (km) 4330.496 4331.772
    Position Y (km) -2209.275 -2208.456
    Position Z (km) -4814.776 -4815.527
    Velocity X (km/s) 0.364 5.487
    Velocity Y (km/s) 7.043 4.429
    Velocity Z (km/s) -2.907 2.907

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-2521 STARLINK-3553
    Semimajor Axis (a) 6837.543 km 6837.898 km
    Eccentricity (e) 0.000108 0.000126
    Inclination (i) 53.1585° 53.1612°
    RAAN 116.2005° 35.5089°
    Perigee Argument 98.1382° 99.0978°
    Mean Anomaly (M) 264.4398° 261.0167°
    Apogee 460.144 km 460.621 km
    Perigee 458.668 km 458.901 km
    Orbit Epoch 2026-10-27T06:00:04+0000 2026-10-26T12:33:06+0000

    STARLINK-2521 & STARLINK-3553 Collision Probability (Pc) Trend

    STARLINK-2521 & STARLINK-3553 Collision Probability (Pc) TrendNot Available

    STARLINK-2521 & STARLINK-3553 Miss Distance (Miss Distance) Trend

    STARLINK-2521 & STARLINK-3553 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-2521Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-3553Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-2521Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3553Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-2521

    No nearby objects data