Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.373484E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T07:42:58+0800
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    1 Object 1

    AOE ID 51887
    NORAD ID 51887
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    Name SARI-1
    AOE ID 66668
    NORAD ID 66668
    Object Type PAYLOAD
    Country
    BR BR

    Conjunction Constraints

    Parameter STARLINK-3551 SARI-1
    Time of Closest Approach 2026-10-21T05:38:41+0000
    Collision Probability (Pc) 9.373484E-7
    Conjunction Distance (km) 2.858 km
    Relative Speed (km/s) 7.091 km/s
    Conjunction Risk Parameters R (Radial): -2.856 | I (In-track): -0.077 | C (Cross-track): -0.048
    Collision Risk Index (CRI) 0.34
    X Position (km) -5511.716 -5514.057
    Position Y (km) -1293.037 -1293.623
    Position Z (km) 3831.721 3833.252
    Velocity X (km/s) -1.618 -4.392
    Velocity Y (km/s) -6.06 0.188
    Velocity Z (km/s) -4.36 -6.242

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3551 SARI-1
    Semimajor Axis (a) 6840.875 km 6839.489 km
    Eccentricity (e) 0.000079 0.000471
    Inclination (i) 53.1612° 97.3928°
    RAAN 52.3359° 6.1093°
    Perigee Argument 87.0832° 282.1113°
    Mean Anomaly (M) 273.0261° 77.9602°
    Apogee 463.278 km 464.573 km
    Perigee 462.198 km 458.131 km
    Orbit Epoch 2026-10-19T09:17:09+0000 2026-10-19T04:30:35+0000

    STARLINK-3551 & SARI-1 Collision Probability (Pc) Trend

    STARLINK-3551 & SARI-1 Collision Probability (Pc) TrendNot Available

    STARLINK-3551 & SARI-1 Miss Distance (Miss Distance) Trend

    STARLINK-3551 & SARI-1 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3551Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SARI-1Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3551Collision Probability Trend

    Object 1 Probability TrendNot Available

    SARI-1Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3551

    No nearby objects data