Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.191698E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-22T13:00:07+0800
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    1 Object 1

    AOE ID 37380
    NORAD ID 37380
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 69789
    NORAD ID 69789
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FAST 2 (USA 228) KUIPER-00646
    Time of Closest Approach 2026-10-23T11:02:57+0000
    Collision Probability (Pc) 2.191698E-6
    Conjunction Distance (km) 2.139 km
    Relative Speed (km/s) 12.564 km/s
    Conjunction Risk Parameters R (Radial): 2.139 | I (In-track): 0.02 | C (Cross-track): -0.03
    Collision Risk Index (CRI) 0.42
    X Position (km) -3829.2 -3830.34
    Position Y (km) -4615.532 -4616.962
    Position Z (km) 3612.767 3613.876
    Velocity X (km/s) 4.416 2.455
    Velocity Y (km/s) 1.056 -5.555
    Velocity Z (km/s) 6.021 -4.481

    Orbital Parameters 国际轨道数据源

    Parameter FAST 2 (USA 228) KUIPER-00646
    Semimajor Axis (a) 6992.321 km 7007.707 km
    Eccentricity (e) 0.001715 0.000048
    Inclination (i) 71.9716° 51.8988°
    RAAN 223.2303° 86.4112°
    Perigee Argument 238.3850° 117.2550°
    Mean Anomaly (M) 121.5643° 242.8462°
    Apogee 626.177 km 629.910 km
    Perigee 602.191 km 629.230 km
    Orbit Epoch 2026-10-21T13:37:38+0000 2026-10-21T16:17:08+0000

    FAST 2 (USA 228) & KUIPER-00646 Collision Probability (Pc) Trend

    FAST 2 (USA 228) & KUIPER-00646 Collision Probability (Pc) TrendNot Available

    FAST 2 (USA 228) & KUIPER-00646 Miss Distance (Miss Distance) Trend

    FAST 2 (USA 228) & KUIPER-00646 Miss Distance (Miss Distance) TrendNot Available

    FAST 2 (USA 228)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    KUIPER-00646Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FAST 2 (USA 228)Collision Probability Trend

    Object 1 Probability TrendNot Available

    KUIPER-00646Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FAST 2 (USA 228)

    No nearby objects data