Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.405658E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T03:31:13+0800
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    1 Object 1

    AOE ID 50831
    NORAD ID 50831
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 55111
    NORAD ID 55111
    Object Type PAYLOAD
    Country
    CH CH

    Conjunction Constraints

    Parameter STARLINK-3299 ASTROCAST-0403
    Time of Closest Approach 2026-10-21T18:58:42+0000
    Collision Probability (Pc) 1.405658E-6
    Conjunction Distance (km) 2.884 km
    Relative Speed (km/s) 14.77 km/s
    Conjunction Risk Parameters R (Radial): -2.304 | I (In-track): 0.45 | C (Cross-track): -1.673
    Collision Risk Index (CRI) 0.38
    X Position (km) -5818.304 -5815.448
    Position Y (km) -3492.384 -3492.541
    Position Z (km) -848.625 -848.987
    Velocity X (km/s) 1.734 0.28
    Velocity Y (km/s) -4.339 1.349
    Velocity Z (km/s) 6.04 -7.513

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3299 ASTROCAST-0403
    Semimajor Axis (a) 6837.474 km 6834.717 km
    Eccentricity (e) 0.000412 0.000319
    Inclination (i) 53.1550° 97.5602°
    RAAN 228.5448° 29.2954°
    Perigee Argument 77.7662° 232.9313°
    Mean Anomaly (M) 282.3803° 127.1639°
    Apogee 462.156 km 458.761 km
    Perigee 456.518 km 454.399 km
    Orbit Epoch 2026-10-19T04:32:16+0000 2026-10-19T05:12:39+0000

    STARLINK-3299 & ASTROCAST-0403 Collision Probability (Pc) Trend

    STARLINK-3299 & ASTROCAST-0403 Collision Probability (Pc) TrendNot Available

    STARLINK-3299 & ASTROCAST-0403 Miss Distance (Miss Distance) Trend

    STARLINK-3299 & ASTROCAST-0403 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3299Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ASTROCAST-0403Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3299Collision Probability Trend

    Object 1 Probability TrendNot Available

    ASTROCAST-0403Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3299

    No nearby objects data