Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.97207E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T00:59:43+0800
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    1 Object 1

    Name ST5-A
    AOE ID 28980
    NORAD ID 28980
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53426
    NORAD ID 53426
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter ST5-A STARLINK-4558
    Time of Closest Approach 2026-10-21T14:19:04+0000
    Collision Probability (Pc) 1.97207E-6
    Conjunction Distance (km) 2.364 km
    Relative Speed (km/s) 15.047 km/s
    Conjunction Risk Parameters R (Radial): 0.675 | I (In-track): 0.646 | C (Cross-track): 2.172
    Collision Risk Index (CRI) 0.41
    X Position (km) -4695.039 -4695.977
    Position Y (km) -1314.792 -1316.894
    Position Z (km) 4788.109 4787.573
    Velocity X (km/s) -6.355 4.53
    Velocity Y (km/s) 1.382 -5.397
    Velocity Z (km/s) -4.922 2.951

    Orbital Parameters 国际轨道数据源

    Parameter ST5-A STARLINK-4558
    Semimajor Axis (a) 7952.078 km 6840.895 km
    Eccentricity (e) 0.160394 0.000114
    Inclination (i) 105.4971° 53.1594°
    RAAN 356.4184° 160.2067°
    Perigee Argument 103.4024° 81.5555°
    Mean Anomaly (M) 275.0226° 278.5577°
    Apogee 2849.405 km 463.540 km
    Perigee 298.477 km 461.976 km
    Orbit Epoch 2026-10-18T22:59:35+0000 2026-10-19T01:05:08+0000

    ST5-A & STARLINK-4558 Collision Probability (Pc) Trend

    ST5-A & STARLINK-4558 Collision Probability (Pc) TrendNot Available

    ST5-A & STARLINK-4558 Miss Distance (Miss Distance) Trend

    ST5-A & STARLINK-4558 Miss Distance (Miss Distance) TrendNot Available

    ST5-AMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4558Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ST5-ACollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4558Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ST5-A

    No nearby objects data