Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    5.216004E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T22:07:07+0800
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    1 Object 1

    AOE ID 60017
    NORAD ID 60017
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    Name TROLL
    AOE ID 62658
    NORAD ID 62658
    Object Type PAYLOAD
    Country
    CZ CZ

    Conjunction Constraints

    Parameter STARLINK-31987 TROLL
    Time of Closest Approach 2026-10-23T11:41:29+0000
    Collision Probability (Pc) 5.216004E-6
    Conjunction Distance (km) 1.503 km
    Relative Speed (km/s) 10.307 km/s
    Conjunction Risk Parameters R (Radial): -0.001 | I (In-track): -1.1 | C (Cross-track): -1.022
    Collision Risk Index (CRI) 0.49
    X Position (km) 3821.928 3821.374
    Position Y (km) 1955.732 1954.595
    Position Z (km) -5343.401 -5344.212
    Velocity X (km/s) -1.802 5.887
    Velocity Y (km/s) 7.275 1.255
    Velocity Z (km/s) 1.374 4.671

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31987 TROLL
    Semimajor Axis (a) 6848.874 km 6847.523 km
    Eccentricity (e) 0.000123 0.000038
    Inclination (i) 53.1595° 97.3816°
    RAAN 108.7222° 15.3359°
    Perigee Argument 84.4907° 74.7969°
    Mean Anomaly (M) 275.6234° 285.3314°
    Apogee 471.578 km 469.647 km
    Perigee 469.896 km 469.125 km
    Orbit Epoch 2026-10-20T18:15:16+0000 2026-10-21T00:21:21+0000

    STARLINK-31987 & TROLL Collision Probability (Pc) Trend

    STARLINK-31987 & TROLL Collision Probability (Pc) TrendNot Available

    STARLINK-31987 & TROLL Miss Distance (Miss Distance) Trend

    STARLINK-31987 & TROLL Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31987Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TROLLMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-31987Collision Probability Trend

    Object 1 Probability TrendNot Available

    TROLLCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31987

    No nearby objects data