Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    5.466252E-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 59730
    NORAD ID 59730
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter TIANMU-1 21 STARLINK-31472
    Time of Closest Approach 2026-10-22T07:30:35+0000
    Collision Probability (Pc) 5.466252E-6
    Conjunction Distance (km) 1.489 km
    Relative Speed (km/s) 10.559 km/s
    Conjunction Risk Parameters R (Radial): -0.934 | I (In-track): -0.832 | C (Cross-track): -0.805
    Collision Risk Index (CRI) 0.5
    X Position (km) -3298.65 -3299.104
    Position Y (km) -3916.231 -3915.763
    Position Z (km) -4527.9 -4526.562
    Velocity X (km/s) 2.195 6.401
    Velocity Y (km/s) 4.66 -3.965
    Velocity Z (km/s) -5.634 -1.23

    Orbital Parameters 国际轨道数据源

    Parameter TIANMU-1 21 STARLINK-31472
    Semimajor Axis (a) 6832.659 km 6823.939 km
    Eccentricity (e) 0.000595 0.001314
    Inclination (i) 97.4619° 42.9983°
    RAAN 54.5249° 350.5274°
    Perigee Argument 219.2234° 41.5130°
    Mean Anomaly (M) 140.8580° 318.6723°
    Apogee 458.587 km 454.770 km
    Perigee 450.457 km 436.834 km
    Orbit Epoch 2026-10-20T07:40:41+0000 2026-10-20T04:36:06+0000

    TIANMU-1 21 & STARLINK-31472 Collision Probability (Pc) Trend

    TIANMU-1 21 & STARLINK-31472 Collision Probability (Pc) TrendNot Available

    TIANMU-1 21 & STARLINK-31472 Miss Distance (Miss Distance) Trend

    TIANMU-1 21 & STARLINK-31472 Miss Distance (Miss Distance) TrendNot Available

    TIANMU-1 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31472Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TIANMU-1 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31472Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TIANMU-1 21

    No nearby objects data