Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.655482E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-14T05:52:52+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 53251
    NORAD ID 53251
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 56874
    NORAD ID 56874
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-4129 LONGJIANG 3
    Time of Closest Approach 2026-10-14T04:14:15+0000
    Collision Probability (Pc) 2.655482E-6
    Conjunction Distance (km) 1.882 km
    Relative Speed (km/s) 10.231 km/s
    Conjunction Risk Parameters R (Radial): -0.212 | I (In-track): 1.381 | C (Cross-track): 1.261
    Collision Risk Index (CRI) 0.43
    X Position (km) -3141.738 -3143.187
    Position Y (km) 4868.241 4867.04
    Position Z (km) -3645.53 -3645.486
    Velocity X (km/s) -2.987 -6.355
    Velocity Y (km/s) -5.337 -1.036
    Velocity Z (km/s) -4.56 4.091

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4129 LONGJIANG 3
    Semimajor Axis (a) 6840.887 km 6840.256 km
    Eccentricity (e) 0.000141 0.000732
    Inclination (i) 53.1607° 49.1026°
    RAAN 279.1429° 158.5249°
    Perigee Argument 91.0750° 205.5384°
    Mean Anomaly (M) 269.0414° 154.5203°
    Apogee 463.718 km 467.126 km
    Perigee 461.782 km 457.112 km
    Orbit Epoch 2026-10-13T05:23:24+0000 2026-10-13T15:55:52+0000

    STARLINK-4129 & LONGJIANG 3 Collision Probability (Pc) Trend

    STARLINK-4129 & LONGJIANG 3 Collision Probability (Pc) TrendNot Available

    STARLINK-4129 & LONGJIANG 3 Miss Distance (Miss Distance) Trend

    STARLINK-4129 & LONGJIANG 3 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4129Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    LONGJIANG 3Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4129Collision Probability Trend

    Object 1 Probability TrendNot Available

    LONGJIANG 3Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4129

    No nearby objects data