Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.435607E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T17:14:55+0800
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    1 Object 1

    AOE ID 40337
    NORAD ID 40337
    Object Type ROCKET BODY
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 59427
    NORAD ID 59427
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4B R/B STARLINK-31757
    Time of Closest Approach 2026-10-28T09:34:28+0000
    Collision Probability (Pc) 1.435607E-5
    Conjunction Distance (km) 1.184 km
    Relative Speed (km/s) 13.824 km/s
    Conjunction Risk Parameters R (Radial): -0.296 | I (In-track): 0.483 | C (Cross-track): 1.04
    Collision Risk Index (CRI) 0.58
    X Position (km) -3503.459 -3502.324
    Position Y (km) -2972.237 -2972.465
    Position Z (km) -5076.081 -5076.331
    Velocity X (km/s) 3.164 2.479
    Velocity Y (km/s) 4.893 -6.836
    Velocity Z (km/s) -4.99 2.294

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4B R/B STARLINK-31757
    Semimajor Axis (a) 6925.862 km 6840.946 km
    Eccentricity (e) 0.013796 0.000123
    Inclination (i) 98.4715° 53.1584°
    RAAN 49.2308° 278.9150°
    Perigee Argument 256.1253° 90.9599°
    Mean Anomaly (M) 102.4592° 315.1993°
    Apogee 643.274 km 463.654 km
    Perigee 452.176 km 461.964 km
    Orbit Epoch 2026-10-27T21:23:35+0000 2026-10-27T20:00:02+0000

    CZ-4B R/B & STARLINK-31757 Collision Probability (Pc) Trend

    CZ-4B R/B & STARLINK-31757 Collision Probability (Pc) TrendNot Available

    CZ-4B R/B & STARLINK-31757 Miss Distance (Miss Distance) Trend

    CZ-4B R/B & STARLINK-31757 Miss Distance (Miss Distance) TrendNot Available

    CZ-4B R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31757Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4B R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31757Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4B R/B

    No nearby objects data