Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.260664E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T22:23:49+0800
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    1 Object 1

    AOE ID 10221
    NORAD ID 10221
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53823
    NORAD ID 53823
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter DELTA 1 DEB STARLINK-4748
    Time of Closest Approach 2026-10-27T16:25:22+0000
    Collision Probability (Pc) 1.260664E-6
    Conjunction Distance (km) 2.457 km
    Relative Speed (km/s) 8.008 km/s
    Conjunction Risk Parameters R (Radial): 2.423 | I (In-track): -0.336 | C (Cross-track): 0.234
    Collision Risk Index (CRI) 0.37
    X Position (km) -2943.841 -2944.575
    Position Y (km) 5431.513 5433.673
    Position Z (km) -2941.253 -2942.166
    Velocity X (km/s) -6.96 -3.288
    Velocity Y (km/s) -2.885 -4.567
    Velocity Z (km/s) 1.761 -5.154

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 DEB STARLINK-4748
    Semimajor Axis (a) 7034.008 km 6840.892 km
    Eccentricity (e) 0.028197 0.000126
    Inclination (i) 29.0234° 53.1595°
    RAAN 181.7622° 280.7683°
    Perigee Argument 305.0720° 91.3605°
    Mean Anomaly (M) 52.3730° 268.7542°
    Apogee 854.208 km 463.617 km
    Perigee 457.534 km 461.893 km
    Orbit Epoch 2026-10-27T00:24:45+0000 2026-10-26T23:52:06+0000

    DELTA 1 DEB & STARLINK-4748 Collision Probability (Pc) Trend

    DELTA 1 DEB & STARLINK-4748 Collision Probability (Pc) TrendNot Available

    DELTA 1 DEB & STARLINK-4748 Miss Distance (Miss Distance) Trend

    DELTA 1 DEB & STARLINK-4748 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4748Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4748Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 DEB

    No nearby objects data