Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    5.363349E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T22:14:59+0800
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    1 Object 1

    AOE ID 52635
    NORAD ID 52635
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    Name OTTER
    AOE ID 62623
    NORAD ID 62623
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3978 OTTER
    Time of Closest Approach 2026-09-06T12:52:46+0000
    Collision Probability (Pc) 5.363349E-5
    Conjunction Distance (km) 0.815 km
    Relative Speed (km/s) 14.754 km/s
    Conjunction Risk Parameters R (Radial): -0.16 | I (In-track): -0.205 | C (Cross-track): -0.771
    Collision Risk Index (CRI) 0.7
    X Position (km) 5911.004 5910.536
    Position Y (km) -3346.1 -3346.684
    Position Z (km) 881.656 881.335
    Velocity X (km/s) 2.961 -1.345
    Velocity Y (km/s) 3.624 -0.377
    Velocity Z (km/s) -6.029 7.504

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3978 OTTER
    Semimajor Axis (a) 6848.899 km 6850.381 km
    Eccentricity (e) 0.000221 0.000537
    Inclination (i) 53.1604° 97.3981°
    RAAN 167.1541° 329.0984°
    Perigee Argument 47.6219° 45.9669°
    Mean Anomaly (M) 312.4969° 314.2013°
    Apogee 472.273 km 475.920 km
    Perigee 469.251 km 468.568 km
    Orbit Epoch 2026-09-04T03:45:42+0000 2026-09-04T04:23:05+0000

    STARLINK-3978 & OTTER Collision Probability (Pc) Trend

    STARLINK-3978 & OTTER Collision Probability (Pc) TrendNot Available

    STARLINK-3978 & OTTER Miss Distance (Miss Distance) Trend

    STARLINK-3978 & OTTER Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3978Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    OTTERMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3978Collision Probability Trend

    Object 1 Probability TrendNot Available

    OTTERCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3978

    No nearby objects data