Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.561612E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T11:29:55+0800
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    1 Object 1

    AOE ID 107
    NORAD ID 107
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53416
    NORAD ID 53416
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter EXPLORER 11 STARLINK-4480
    Time of Closest Approach 2026-10-20T09:46:23+0000
    Collision Probability (Pc) 2.561612E-6
    Conjunction Distance (km) 1.873 km
    Relative Speed (km/s) 9.484 km/s
    Conjunction Risk Parameters R (Radial): -1.223 | I (In-track): -1.104 | C (Cross-track): -0.889
    Collision Risk Index (CRI) 0.43
    X Position (km) -6369.766 -6368.189
    Position Y (km) 1641.001 1642.013
    Position Z (km) -1883.543 -1883.549
    Velocity X (km/s) -0.903 -2.775
    Velocity Y (km/s) -7.129 -4.2
    Velocity Z (km/s) -3.084 5.74

    Orbital Parameters 国际轨道数据源

    Parameter EXPLORER 11 STARLINK-4480
    Semimajor Axis (a) 7194.738 km 6837.878 km
    Eccentricity (e) 0.049138 0.000124
    Inclination (i) 28.7802° 53.1606°
    RAAN 319.6185° 184.0202°
    Perigee Argument 209.5112° 86.4757°
    Mean Anomaly (M) 147.6855° 273.6388°
    Apogee 1170.136 km 460.592 km
    Perigee 463.066 km 458.890 km
    Orbit Epoch 2026-10-19T10:51:42+0000 2026-10-19T02:36:57+0000

    EXPLORER 11 & STARLINK-4480 Collision Probability (Pc) Trend

    EXPLORER 11 & STARLINK-4480 Collision Probability (Pc) TrendNot Available

    EXPLORER 11 & STARLINK-4480 Miss Distance (Miss Distance) Trend

    EXPLORER 11 & STARLINK-4480 Miss Distance (Miss Distance) TrendNot Available

    EXPLORER 11Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4480Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    EXPLORER 11Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4480Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with EXPLORER 11

    No nearby objects data