Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.065406E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-17T21:20:25+0800
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    1 Object 1

    AOE ID 31305
    NORAD ID 31305
    Object Type ROCKET BODY
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 59096
    NORAD ID 59096
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter PEGASUS R/B STARLINK-31291
    Time of Closest Approach 2026-10-18T11:49:42+0000
    Collision Probability (Pc) 4.065406E-6
    Conjunction Distance (km) 1.728 km
    Relative Speed (km/s) 13.602 km/s
    Conjunction Risk Parameters R (Radial): 0.662 | I (In-track): -0.723 | C (Cross-track): -1.422
    Collision Risk Index (CRI) 0.47
    X Position (km) -666.176 -664.774
    Position Y (km) -5564.094 -5563.165
    Position Z (km) 3950.974 3951.369
    Velocity X (km/s) -0.764 6.546
    Velocity Y (km/s) 4.457 -2.76
    Velocity Z (km/s) 6.137 -2.778

    Orbital Parameters 国际轨道数据源

    Parameter PEGASUS R/B STARLINK-31291
    Semimajor Axis (a) 6853.565 km 6861.186 km
    Eccentricity (e) 0.000919 0.000069
    Inclination (i) 97.9432° 43.0032°
    RAAN 267.4174° 141.3547°
    Perigee Argument 251.1756° 250.8465°
    Mean Anomaly (M) 108.8486° 109.2312°
    Apogee 481.726 km 483.522 km
    Perigee 469.130 km 482.576 km
    Orbit Epoch 2026-10-17T04:17:01+0000 2026-10-16T21:38:00+0000

    PEGASUS R/B & STARLINK-31291 Collision Probability (Pc) Trend

    PEGASUS R/B & STARLINK-31291 Collision Probability (Pc) TrendNot Available

    PEGASUS R/B & STARLINK-31291 Miss Distance (Miss Distance) Trend

    PEGASUS R/B & STARLINK-31291 Miss Distance (Miss Distance) TrendNot Available

    PEGASUS R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31291Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    PEGASUS R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31291Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with PEGASUS R/B

    No nearby objects data