Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    7.480903E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T20:35:15+0800
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    1 Object 1

    AOE ID 40270
    NORAD ID 40270
    Object Type ROCKET BODY
    Country
    IN IN
    ← VS →

    2 Object 2

    AOE ID 53402
    NORAD ID 53402
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter PSLV R/B STARLINK-4499
    Time of Closest Approach 2026-10-21T20:54:04+0000
    Collision Probability (Pc) 7.480903E-6
    Conjunction Distance (km) 1.194 km
    Relative Speed (km/s) 5.653 km/s
    Conjunction Risk Parameters R (Radial): -0.606 | I (In-track): -0.918 | C (Cross-track): 0.462
    Collision Risk Index (CRI) 0.52
    X Position (km) 6761.187 6760.472
    Position Y (km) -1049.161 -1049.793
    Position Z (km) 32.075 32.792
    Velocity X (km/s) -0.045 0.739
    Velocity Y (km/s) 9.086 4.517
    Velocity Z (km/s) -2.876 -6.112

    Orbital Parameters 国际轨道数据源

    Parameter PSLV R/B STARLINK-4499
    Semimajor Axis (a) 15521.300 km 6840.878 km
    Eccentricity (e) 0.572885 0.000167
    Inclination (i) 17.7189° 53.1537°
    RAAN 174.0081° 179.7559°
    Perigee Argument 199.5648° 91.9125°
    Mean Anomaly (M) 123.8808° 268.2068°
    Apogee 18035.090 km 463.881 km
    Perigee 251.236 km 461.601 km
    Orbit Epoch 2026-10-19T17:22:02+0000 2026-10-20T01:54:51+0000

    PSLV R/B & STARLINK-4499 Collision Probability (Pc) Trend

    PSLV R/B & STARLINK-4499 Collision Probability (Pc) TrendNot Available

    PSLV R/B & STARLINK-4499 Miss Distance (Miss Distance) Trend

    PSLV R/B & STARLINK-4499 Miss Distance (Miss Distance) TrendNot Available

    PSLV R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4499Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    PSLV R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4499Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with PSLV R/B

    No nearby objects data