Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    7.35416E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T00:07:49+0800
    View CDM
    Download CDM 1.0

    1 Object 1

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

    2 Object 2

    AOE ID 53409
    NORAD ID 53409
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SEEDS STARLINK-4490
    Time of Closest Approach 2026-09-03T08:07:04+0000
    Collision Probability (Pc) 7.35416E-6
    Conjunction Distance (km) 1.43 km
    Relative Speed (km/s) 13.418 km/s
    Conjunction Risk Parameters R (Radial): -0.125 | I (In-track): 0.672 | C (Cross-track): -1.255
    Collision Risk Index (CRI) 0.52
    X Position (km) -954.524 -953.598
    Position Y (km) -4297.622 -4298.467
    Position Z (km) -5243.442 -5242.755
    Velocity X (km/s) -2.799 7.398
    Velocity Y (km/s) -5.222 0.516
    Velocity Z (km/s) 4.796 -1.77

    Orbital Parameters 国际轨道数据源

    Parameter SEEDS STARLINK-4490
    Semimajor Axis (a) 6838.531 km 6840.876 km
    Eccentricity (e) 0.000426 0.000111
    Inclination (i) 97.7565° 53.1623°
    RAAN 246.7042° 21.5047°
    Perigee Argument 66.7315° 78.6176°
    Mean Anomaly (M) 293.4376° 281.4951°
    Apogee 463.309 km 463.498 km
    Perigee 457.479 km 461.980 km
    Orbit Epoch 2026-09-01T23:29:14+0000 2026-09-01T19:03:52+0000

    SEEDS & STARLINK-4490 Collision Probability (Pc) Trend

    SEEDS & STARLINK-4490 Collision Probability (Pc) TrendNot Available

    SEEDS & STARLINK-4490 Miss Distance (Miss Distance) Trend

    SEEDS & STARLINK-4490 Miss Distance (Miss Distance) TrendNot Available

    SEEDSMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4490Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SEEDSCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4490Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SEEDS

    No nearby objects data