Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.265014E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T03:03:16+0800
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    1 Object 1

    AOE ID 51111
    NORAD ID 51111
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 58829
    NORAD ID 58829
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3173 STARLINK-31258
    Time of Closest Approach 2026-10-21T16:10:30+0000
    Collision Probability (Pc) 1.265014E-6
    Conjunction Distance (km) 2.631 km
    Relative Speed (km/s) 9.796 km/s
    Conjunction Risk Parameters R (Radial): 2.527 | I (In-track): -0.559 | C (Cross-track): 0.471
    Collision Risk Index (CRI) 0.37
    X Position (km) 5158.996 5161.09
    Position Y (km) 1371.665 1371.466
    Position Z (km) 4264.111 4265.689
    Velocity X (km/s) -4.467 1.453
    Velocity Y (km/s) 4.88 6.453
    Velocity Z (km/s) 3.823 -3.822

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3173 STARLINK-31258
    Semimajor Axis (a) 6837.879 km 6840.888 km
    Eccentricity (e) 0.000124 0.000183
    Inclination (i) 53.1601° 53.1551°
    RAAN 349.7284° 247.6260°
    Perigee Argument 90.1944° 89.2067°
    Mean Anomaly (M) 269.9201° 270.9146°
    Apogee 460.589 km 464.004 km
    Perigee 458.895 km 461.498 km
    Orbit Epoch 2026-10-19T04:35:18+0000 2026-10-18T06:19:38+0000

    STARLINK-3173 & STARLINK-31258 Collision Probability (Pc) Trend

    STARLINK-3173 & STARLINK-31258 Collision Probability (Pc) TrendNot Available

    STARLINK-3173 & STARLINK-31258 Miss Distance (Miss Distance) Trend

    STARLINK-3173 & STARLINK-31258 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3173Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31258Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3173Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31258Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3173

    No nearby objects data