Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    6.671648E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-24T00:19:02+0800
    View CDM
    Download CDM 1.0

    1 Object 1

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

    2 Object 2

    AOE ID 68933
    NORAD ID 68933
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FAST 2 (USA 228) KUIPER-00421
    Time of Closest Approach 2026-10-23T23:59:03+0000
    Collision Probability (Pc) 6.671648E-7
    Conjunction Distance (km) 2.692 km
    Relative Speed (km/s) 3.247 km/s
    Conjunction Risk Parameters R (Radial): 1.99 | I (In-track): -1.77 | C (Cross-track): 0.388
    Collision Risk Index (CRI) 0.31
    X Position (km) -3935.259 -3937.642
    Position Y (km) -4536.174 -4537.394
    Position Z (km) 3599.353 3599.079
    Velocity X (km/s) 4.427 5.87
    Velocity Y (km/s) 0.952 -1.518
    Velocity Z (km/s) 6.03 4.494

    Orbital Parameters 国际轨道数据源

    Parameter FAST 2 (USA 228) KUIPER-00421
    Semimajor Axis (a) 6992.314 km 7007.714 km
    Eccentricity (e) 0.001710 0.000122
    Inclination (i) 71.9717° 51.9001°
    RAAN 220.2210° 205.8237°
    Perigee Argument 236.0893° 94.5321°
    Mean Anomaly (M) 123.8648° 265.5781°
    Apogee 626.134 km 630.432 km
    Perigee 602.220 km 628.722 km
    Orbit Epoch 2026-10-22T21:57:58+0000 2026-10-22T21:52:09+0000

    FAST 2 (USA 228) & KUIPER-00421 Collision Probability (Pc) Trend

    FAST 2 (USA 228) & KUIPER-00421 Collision Probability (Pc) TrendNot Available

    FAST 2 (USA 228) & KUIPER-00421 Miss Distance (Miss Distance) Trend

    FAST 2 (USA 228) & KUIPER-00421 Miss Distance (Miss Distance) TrendNot Available

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

    Object 1 Miss Distance TrendNot Available

    KUIPER-00421Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FAST 2 (USA 228)Collision Probability Trend

    Object 1 Probability TrendNot Available

    KUIPER-00421Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FAST 2 (USA 228)

    No nearby objects data