Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.362184E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T16:37:43+0800
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    1 Object 1

    AOE ID 58700
    NORAD ID 58700
    Object Type PAYLOAD
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 59079
    NORAD ID 59079
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter TIANMU-1 15 STARLINK-31257
    Time of Closest Approach 2026-09-13T10:27:10+0000
    Collision Probability (Pc) 1.362184E-6
    Conjunction Distance (km) 2.755 km
    Relative Speed (km/s) 12.549 km/s
    Conjunction Risk Parameters R (Radial): 2.669 | I (In-track): 0.38 | C (Cross-track): -0.566
    Collision Risk Index (CRI) 0.38
    X Position (km) 1242.176 1242.106
    Position Y (km) 4946.895 4948.635
    Position Z (km) 4576.563 4578.697
    Velocity X (km/s) 0.068 -7.043
    Velocity Y (km/s) -5.197 2.736
    Velocity Z (km/s) 5.586 -1.043

    Orbital Parameters 国际轨道数据源

    Parameter TIANMU-1 15 STARLINK-31257
    Semimajor Axis (a) 6861.685 km 6861.195 km
    Eccentricity (e) 0.000821 0.000120
    Inclination (i) 97.4668° 43.0023°
    RAAN 80.1633° 352.1643°
    Perigee Argument 43.2490° 255.5074°
    Mean Anomaly (M) 316.9392° 104.5644°
    Apogee 489.182 km 483.885 km
    Perigee 477.914 km 482.231 km
    Orbit Epoch 2026-09-10T22:31:18+0000 2026-09-09T13:25:24+0000

    TIANMU-1 15 & STARLINK-31257 Collision Probability (Pc) Trend

    TIANMU-1 15 & STARLINK-31257 Collision Probability (Pc) TrendNot Available

    TIANMU-1 15 & STARLINK-31257 Miss Distance (Miss Distance) Trend

    TIANMU-1 15 & STARLINK-31257 Miss Distance (Miss Distance) TrendNot Available

    TIANMU-1 15Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31257Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TIANMU-1 15Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31257Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TIANMU-1 15

    No nearby objects data