Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.38474E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T08:13:26+0800
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    1 Object 1

    AOE ID 58662
    NORAD ID 58662
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 69239
    NORAD ID 69239
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter TIANMU-1 21 STARLINK-37558
    Time of Closest Approach 2026-10-21T07:17:21+0000
    Collision Probability (Pc) 3.38474E-6
    Conjunction Distance (km) 1.627 km
    Relative Speed (km/s) 7.816 km/s
    Conjunction Risk Parameters R (Radial): 1.051 | I (In-track): 1.067 | C (Cross-track): -0.635
    Collision Risk Index (CRI) 0.46
    X Position (km) 3412.635 3412.334
    Position Y (km) 3948.323 3948.654
    Position Z (km) 4411.654 4413.217
    Velocity X (km/s) -2.199 -6.539
    Velocity Y (km/s) -4.53 1.609
    Velocity Z (km/s) 5.74 3.607

    Orbital Parameters 国际轨道数据源

    Parameter TIANMU-1 21 STARLINK-37558
    Semimajor Axis (a) 6832.659 km 6840.808 km
    Eccentricity (e) 0.000595 0.000119
    Inclination (i) 97.4619° 53.1571°
    RAAN 54.5249° 14.7366°
    Perigee Argument 219.2234° 69.3833°
    Mean Anomaly (M) 140.8580° 290.7297°
    Apogee 458.587 km 463.486 km
    Perigee 450.457 km 461.856 km
    Orbit Epoch 2026-10-20T07:40:41+0000 2026-10-20T06:02:40+0000

    TIANMU-1 21 & STARLINK-37558 Collision Probability (Pc) Trend

    TIANMU-1 21 & STARLINK-37558 Collision Probability (Pc) TrendNot Available

    TIANMU-1 21 & STARLINK-37558 Miss Distance (Miss Distance) Trend

    TIANMU-1 21 & STARLINK-37558 Miss Distance (Miss Distance) TrendNot Available

    TIANMU-1 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37558Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TIANMU-1 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37558Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TIANMU-1 21

    No nearby objects data