Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.900502E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T21:15:06+0800
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    1 Object 1

    AOE ID 45217
    NORAD ID 45217
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    Name R5-S4
    AOE ID 60206
    NORAD ID 60206
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-1271 R5-S4
    Time of Closest Approach 2026-10-22T07:23:33+0000
    Collision Probability (Pc) 1.900502E-6
    Conjunction Distance (km) 2.27 km
    Relative Speed (km/s) 12.328 km/s
    Conjunction Risk Parameters R (Radial): -2.233 | I (In-track): -0.238 | C (Cross-track): -0.318
    Collision Risk Index (CRI) 0.41
    X Position (km) -2960.275 -2959.289
    Position Y (km) 2829.522 2828.948
    Position Z (km) 5426.272 5424.311
    Velocity X (km/s) -5.666 5.436
    Velocity Y (km/s) -5.135 -2.984
    Velocity Z (km/s) -0.411 4.497

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-1271 R5-S4
    Semimajor Axis (a) 6805.298 km 6804.781 km
    Eccentricity (e) 0.000177 0.001613
    Inclination (i) 53.1519° 97.2219°
    RAAN 48.2676° 144.7919°
    Perigee Argument 328.7764° 127.2321°
    Mean Anomaly (M) 31.3138° 233.0404°
    Apogee 428.368 km 437.621 km
    Perigee 425.954 km 415.667 km
    Orbit Epoch 2026-10-20T13:06:47+0000 2026-10-21T03:12:42+0000

    STARLINK-1271 & R5-S4 Collision Probability (Pc) Trend

    STARLINK-1271 & R5-S4 Collision Probability (Pc) TrendNot Available

    STARLINK-1271 & R5-S4 Miss Distance (Miss Distance) Trend

    STARLINK-1271 & R5-S4 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-1271Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    R5-S4Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-1271Collision Probability Trend

    Object 1 Probability TrendNot Available

    R5-S4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-1271

    No nearby objects data