Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.146134E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-22T02:08:27+0800
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    1 Object 1

    AOE ID 20571
    NORAD ID 20571
    Object Type ROCKET BODY
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 55999
    NORAD ID 55999
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter DELTA 2 R/B STARLINK-5901
    Time of Closest Approach 2026-10-23T21:30:53+0000
    Collision Probability (Pc) 1.146134E-6
    Conjunction Distance (km) 1.924 km
    Relative Speed (km/s) 2.765 km/s
    Conjunction Risk Parameters R (Radial): 1.887 | I (In-track): 0.37 | C (Cross-track): -0.064
    Collision Risk Index (CRI) 0.36
    X Position (km) 5470.819 5472.118
    Position Y (km) 4087.727 4089.094
    Position Z (km) -643.534 -643.91
    Velocity X (km/s) -4.576 -3.737
    Velocity Y (km/s) 5.601 4.198
    Velocity Z (km/s) -2.924 -5.153

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 2 R/B STARLINK-5901
    Semimajor Axis (a) 7194.380 km 6861.197 km
    Eccentricity (e) 0.046631 0.000074
    Inclination (i) 22.7414° 43.0005°
    RAAN 220.6010° 226.3031°
    Perigee Argument 170.9025° 237.5380°
    Mean Anomaly (M) 190.0223° 122.5400°
    Apogee 1151.723 km 483.570 km
    Perigee 480.763 km 482.550 km
    Orbit Epoch 2026-10-21T02:57:21+0000 2026-10-21T04:21:22+0000

    DELTA 2 R/B & STARLINK-5901 Collision Probability (Pc) Trend

    DELTA 2 R/B & STARLINK-5901 Collision Probability (Pc) TrendNot Available

    DELTA 2 R/B & STARLINK-5901 Miss Distance (Miss Distance) Trend

    DELTA 2 R/B & STARLINK-5901 Miss Distance (Miss Distance) TrendNot Available

    DELTA 2 R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5901Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 2 R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5901Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 2 R/B

    No nearby objects data