Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.154262E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T10:32:52+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 69369
    NORAD ID 69369
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter TIANMU-1 21 STARLINK-37631
    Time of Closest Approach 2026-09-12T21:47:21+0000
    Collision Probability (Pc) 2.154262E-6
    Conjunction Distance (km) 2.246 km
    Relative Speed (km/s) 14.597 km/s
    Conjunction Risk Parameters R (Radial): 0.231 | I (In-track): 0.654 | C (Cross-track): -2.135
    Collision Risk Index (CRI) 0.42
    X Position (km) -5661.11 -5661.201
    Position Y (km) -2121.258 -2119.143
    Position Z (km) 3193.452 3194.2
    Velocity X (km/s) -3.708 4.279
    Velocity Y (km/s) -0.193 -3.929
    Velocity Z (km/s) -6.672 4.96

    Orbital Parameters 国际轨道数据源

    Parameter TIANMU-1 21 STARLINK-37631
    Semimajor Axis (a) 6834.684 km 6840.852 km
    Eccentricity (e) 0.000713 0.000104
    Inclination (i) 97.4581° 53.1592°
    RAAN 14.3010° 188.1787°
    Perigee Argument 22.1089° 84.3320°
    Mean Anomaly (M) 338.0460° 275.7801°
    Apogee 461.419 km 463.427 km
    Perigee 451.675 km 462.003 km
    Orbit Epoch 2026-09-10T15:59:20+0000 2026-09-10T13:21:32+0000

    TIANMU-1 21 & STARLINK-37631 Collision Probability (Pc) Trend

    TIANMU-1 21 & STARLINK-37631 Collision Probability (Pc) TrendNot Available

    TIANMU-1 21 & STARLINK-37631 Miss Distance (Miss Distance) Trend

    TIANMU-1 21 & STARLINK-37631 Miss Distance (Miss Distance) TrendNot Available

    TIANMU-1 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37631Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TIANMU-1 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37631Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TIANMU-1 21

    No nearby objects data