Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    9.941218E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T07:51:00+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) 9.941218E-5
    Conjunction Distance (km) 0.664 km
    Relative Speed (km/s) 14.754 km/s
    Conjunction Risk Parameters R (Radial): -0.029 | I (In-track): 0.173 | C (Cross-track): 0.641
    Collision Risk Index (CRI) 0.75
    X Position (km) 5909.776 5910.026
    Position Y (km) -3347.391 -3346.826
    Position Z (km) 883.935 884.179
    Velocity X (km/s) 2.964 -1.348
    Velocity Y (km/s) 3.622 -0.375
    Velocity Z (km/s) -6.028 7.503

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3978 OTTER
    Semimajor Axis (a) 6848.895 km 6850.381 km
    Eccentricity (e) 0.000193 0.000537
    Inclination (i) 53.1601° 97.3981°
    RAAN 165.6351° 329.0984°
    Perigee Argument 52.8739° 45.9669°
    Mean Anomaly (M) 307.2439° 314.2013°
    Apogee 472.084 km 475.920 km
    Perigee 469.432 km 468.568 km
    Orbit Epoch 2026-09-04T11:35:30+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