Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.128033E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T14:01:34+0800
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    1 Object 1

    Name SEEDS
    AOE ID 32791
    NORAD ID 32791
    Object Type PAYLOAD
    Country
    JP JP
    VS

    2 Object 2

    AOE ID 53831
    NORAD ID 53831
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SEEDS STARLINK-4649
    Time of Closest Approach 2026-09-06T05:20:24+0000
    Collision Probability (Pc) 1.128033E-6
    Conjunction Distance (km) 2.603 km
    Relative Speed (km/s) 7.794 km/s
    Conjunction Risk Parameters R (Radial): 2.546 | I (In-track): -0.463 | C (Cross-track): 0.28
    Collision Risk Index (CRI) 0.36
    X Position (km) -2248.548 -2249.699
    Position Y (km) -4748.977 -4750.955
    Position Z (km) 4367.338 4368.576
    Velocity X (km/s) 0.849 6.694
    Velocity Y (km/s) 4.927 0.219
    Velocity Z (km/s) 5.778 3.675

    Orbital Parameters 国际轨道数据源

    Parameter SEEDS STARLINK-4649
    Semimajor Axis (a) 6838.412 km 6840.871 km
    Eccentricity (e) 0.000415 0.000123
    Inclination (i) 97.7568° 53.1613°
    RAAN 248.2813° 219.5699°
    Perigee Argument 63.8049° 80.5326°
    Mean Anomaly (M) 296.3620° 279.5815°
    Apogee 463.115 km 463.573 km
    Perigee 457.435 km 461.895 km
    Orbit Epoch 2026-09-03T11:28:00+0000 2026-09-03T08:19:36+0000

    SEEDS & STARLINK-4649 Collision Probability (Pc) Trend

    SEEDS & STARLINK-4649 Collision Probability (Pc) TrendNot Available

    SEEDS & STARLINK-4649 Miss Distance (Miss Distance) Trend

    SEEDS & STARLINK-4649 Miss Distance (Miss Distance) TrendNot Available

    SEEDSMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4649Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SEEDSCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4649Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SEEDS

    No nearby objects data