Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.400203E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-24T15:47:12+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 53038
    NORAD ID 53038
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    Name DEAR-5
    AOE ID 67070
    NORAD ID 67070
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-4156 DEAR-5
    Time of Closest Approach 2026-10-24T11:36:54+0000
    Collision Probability (Pc) 8.400203E-7
    Conjunction Distance (km) 2.2 km
    Relative Speed (km/s) 2.663 km/s
    Conjunction Risk Parameters R (Radial): 0.726 | I (In-track): -2.045 | C (Cross-track): -0.356
    Collision Risk Index (CRI) 0.33
    X Position (km) 4678.663 4678.765
    Position Y (km) -2986.975 -2989.12
    Position Z (km) -4006.351 -4005.873
    Velocity X (km/s) 0.504 2.373
    Velocity Y (km/s) 6.37 6.864
    Velocity Z (km/s) -4.165 -2.334

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4156 DEAR-5
    Semimajor Axis (a) 6840.859 km 6843.213 km
    Eccentricity (e) 0.000110 0.001398
    Inclination (i) 53.1589° 41.3599°
    RAAN 117.9219° 109.7387°
    Perigee Argument 80.6947° 313.7131°
    Mean Anomaly (M) 279.4179° 46.2539°
    Apogee 463.474 km 474.640 km
    Perigee 461.970 km 455.512 km
    Orbit Epoch 2026-10-23T18:59:51+0000 2026-10-21T12:13:51+0000

    STARLINK-4156 & DEAR-5 Collision Probability (Pc) Trend

    STARLINK-4156 & DEAR-5 Collision Probability (Pc) TrendNot Available

    STARLINK-4156 & DEAR-5 Miss Distance (Miss Distance) Trend

    STARLINK-4156 & DEAR-5 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4156Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    DEAR-5Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4156Collision Probability Trend

    Object 1 Probability TrendNot Available

    DEAR-5Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4156

    No nearby objects data