Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    6.200828E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-06T14:20:10+0800
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    1 Object 1

    AOE ID 45227
    NORAD ID 45227
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 55974
    NORAD ID 55974
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-1221 TIANMU-1 04
    Time of Closest Approach 2026-10-08T07:50:49+0000
    Collision Probability (Pc) 6.200828E-6
    Conjunction Distance (km) 1.504 km
    Relative Speed (km/s) 13.365 km/s
    Conjunction Risk Parameters R (Radial): 1.051 | I (In-track): 0.518 | C (Cross-track): 0.944
    Collision Risk Index (CRI) 0.51
    X Position (km) -0.158 -0.96
    Position Y (km) 4325.139 4325.255
    Position Z (km) 5225.898 5227.165
    Velocity X (km/s) -7.228 1.575
    Velocity Y (km/s) 1.969 -5.786
    Velocity Z (km/s) -1.625 4.777

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-1221 TIANMU-1 04
    Semimajor Axis (a) 6790.007 km 6792.390 km
    Eccentricity (e) 0.000245 0.000446
    Inclination (i) 53.0621° 97.5188°
    RAAN 349.1081° 96.6951°
    Perigee Argument 321.6736° 52.0922°
    Mean Anomaly (M) 38.4099° 308.0732°
    Apogee 413.535 km 417.280 km
    Perigee 410.205 km 411.226 km
    Orbit Epoch 2026-10-05T11:23:04+0000 2026-10-05T22:19:59+0000

    STARLINK-1221 & TIANMU-1 04 Collision Probability (Pc) Trend

    STARLINK-1221 & TIANMU-1 04 Collision Probability (Pc) TrendNot Available

    STARLINK-1221 & TIANMU-1 04 Miss Distance (Miss Distance) Trend

    STARLINK-1221 & TIANMU-1 04 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-1221Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANMU-1 04Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-1221Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 04Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-1221

    No nearby objects data