Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.57415E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T06:13:36+0800
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    1 Object 1

    AOE ID 57511
    NORAD ID 57511
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 60493
    NORAD ID 60493
    Object Type PAYLOAD
    Country
    AR AR

    Conjunction Constraints

    Parameter STARLINK-30147 NUSAT-50 (NANCY ROMAN)
    Time of Closest Approach 2026-10-28T10:03:09+0000
    Collision Probability (Pc) 4.57415E-6
    Conjunction Distance (km) 1.643 km
    Relative Speed (km/s) 12.884 km/s
    Conjunction Risk Parameters R (Radial): 1.628 | I (In-track): -0.124 | C (Cross-track): -0.178
    Collision Risk Index (CRI) 0.48
    X Position (km) 4598.173 4599.264
    Position Y (km) 2456.722 2457.114
    Position Z (km) -4458.11 -4459.273
    Velocity X (km/s) -4.644 4.905
    Velocity Y (km/s) 5.838 1.163
    Velocity Z (km/s) -1.567 5.709

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-30147 NUSAT-50 (NANCY ROMAN)
    Semimajor Axis (a) 6861.193 km 6852.782 km
    Eccentricity (e) 0.000938 0.000466
    Inclination (i) 42.9970° 97.3705°
    RAAN 149.5311° 20.1423°
    Perigee Argument 283.3646° 89.9035°
    Mean Anomaly (M) 76.6160° 270.2741°
    Apogee 489.491 km 477.842 km
    Perigee 476.621 km 471.448 km
    Orbit Epoch 2026-10-26T23:59:50+0000 2026-10-26T19:00:02+0000

    STARLINK-30147 & NUSAT-50 (NANCY ROMAN) Collision Probability (Pc) Trend

    STARLINK-30147 & NUSAT-50 (NANCY ROMAN) Collision Probability (Pc) TrendNot Available

    STARLINK-30147 & NUSAT-50 (NANCY ROMAN) Miss Distance (Miss Distance) Trend

    STARLINK-30147 & NUSAT-50 (NANCY ROMAN) Miss Distance (Miss Distance) TrendNot Available

    STARLINK-30147Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    NUSAT-50 (NANCY ROMAN)Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-30147Collision Probability Trend

    Object 1 Probability TrendNot Available

    NUSAT-50 (NANCY ROMAN)Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-30147

    No nearby objects data