Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.026276E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T03:53:31+0800
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    1 Object 1

    AOE ID 54850
    NORAD ID 54850
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 56695
    NORAD ID 56695
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5087 STARLINK-30121
    Time of Closest Approach 2026-10-28T12:43:29+0000
    Collision Probability (Pc) 2.026276E-6
    Conjunction Distance (km) 2.096 km
    Relative Speed (km/s) 10.245 km/s
    Conjunction Risk Parameters R (Radial): -2.088 | I (In-track): 0.129 | C (Cross-track): 0.108
    Collision Risk Index (CRI) 0.41
    X Position (km) -3749.785 -3751.067
    Position Y (km) -5639.377 -5641.002
    Position Z (km) -1096.612 -1096.94
    Velocity X (km/s) 4.251 5.16
    Velocity Y (km/s) -3.807 -2.441
    Velocity Z (km/s) 5.058 -5.054

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5087 STARLINK-30121
    Semimajor Axis (a) 6860.730 km 6861.023 km
    Eccentricity (e) 0.000322 0.001403
    Inclination (i) 43.0005° 42.9840°
    RAAN 253.7615° 53.2156°
    Perigee Argument 275.6352° 279.0640°
    Mean Anomaly (M) 84.4132° 80.8624°
    Apogee 484.803 km 492.512 km
    Perigee 480.383 km 473.260 km
    Orbit Epoch 2026-10-27T05:24:07+0000 2026-10-27T07:38:04+0000

    STARLINK-5087 & STARLINK-30121 Collision Probability (Pc) Trend

    STARLINK-5087 & STARLINK-30121 Collision Probability (Pc) TrendNot Available

    STARLINK-5087 & STARLINK-30121 Miss Distance (Miss Distance) Trend

    STARLINK-5087 & STARLINK-30121 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5087Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30121Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5087Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30121Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5087

    No nearby objects data