Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.292015E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T09:54:03+0800
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    1 Object 1

    AOE ID 58487
    NORAD ID 58487
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 58702
    NORAD ID 58702
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-30987 TIANMU-1 17
    Time of Closest Approach 2026-10-21T02:51:49+0000
    Collision Probability (Pc) 1.292015E-6
    Conjunction Distance (km) 2.852 km
    Relative Speed (km/s) 12.437 km/s
    Conjunction Risk Parameters R (Radial): 1.067 | I (In-track): 1.537 | C (Cross-track): 2.153
    Collision Risk Index (CRI) 0.37
    X Position (km) -3054.141 -3056.863
    Position Y (km) 4071.01 4071.528
    Position Z (km) -4605.708 -4605.035
    Velocity X (km/s) -5.512 -1.953
    Velocity Y (km/s) -5.177 4.823
    Velocity Z (km/s) -0.921 5.562

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-30987 TIANMU-1 17
    Semimajor Axis (a) 6861.204 km 6860.355 km
    Eccentricity (e) 0.000105 0.000385
    Inclination (i) 43.0030° 97.4630°
    RAAN 241.6773° 118.8515°
    Perigee Argument 276.5835° 281.1913°
    Mean Anomaly (M) 83.4897° 78.8893°
    Apogee 483.789 km 484.858 km
    Perigee 482.345 km 479.578 km
    Orbit Epoch 2026-10-19T04:13:21+0000 2026-10-19T21:11:05+0000

    STARLINK-30987 & TIANMU-1 17 Collision Probability (Pc) Trend

    STARLINK-30987 & TIANMU-1 17 Collision Probability (Pc) TrendNot Available

    STARLINK-30987 & TIANMU-1 17 Miss Distance (Miss Distance) Trend

    STARLINK-30987 & TIANMU-1 17 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-30987Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANMU-1 17Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-30987Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 17Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-30987

    No nearby objects data