Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.67082E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T07:06:27+0800
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    1 Object 1

    AOE ID 66309
    NORAD ID 66309
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66737
    NORAD ID 66737
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter TOMORROW-S9 FLOCK 4H 34
    Time of Closest Approach 2026-10-21T15:24:12+0000
    Collision Probability (Pc) 1.67082E-6
    Conjunction Distance (km) 2.536 km
    Relative Speed (km/s) 14.207 km/s
    Conjunction Risk Parameters R (Radial): 2.534 | I (In-track): 0.054 | C (Cross-track): -0.102
    Collision Risk Index (CRI) 0.39
    X Position (km) -6158.63 -6160.899
    Position Y (km) -1086.705 -1087.214
    Position Z (km) 2853.737 2854.748
    Velocity X (km/s) 3.009 -3.278
    Velocity Y (km/s) -5.44 0.518
    Velocity Z (km/s) 4.406 -6.855

    Orbital Parameters 国际轨道数据源

    Parameter TOMORROW-S9 FLOCK 4H 34
    Semimajor Axis (a) 6879.711 km 6878.360 km
    Eccentricity (e) 0.000282 0.000172
    Inclination (i) 45.4007° 97.4126°
    RAAN 177.0363° 4.4363°
    Perigee Argument 30.7428° 188.8156°
    Mean Anomaly (M) 329.3623° 171.3050°
    Apogee 503.511 km 501.407 km
    Perigee 499.637 km 499.039 km
    Orbit Epoch 2026-10-19T01:47:20+0000 2026-10-19T10:38:58+0000

    TOMORROW-S9 & FLOCK 4H 34 Collision Probability (Pc) Trend

    TOMORROW-S9 & FLOCK 4H 34 Collision Probability (Pc) TrendNot Available

    TOMORROW-S9 & FLOCK 4H 34 Miss Distance (Miss Distance) Trend

    TOMORROW-S9 & FLOCK 4H 34 Miss Distance (Miss Distance) TrendNot Available

    TOMORROW-S9Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FLOCK 4H 34Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TOMORROW-S9Collision Probability Trend

    Object 1 Probability TrendNot Available

    FLOCK 4H 34Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TOMORROW-S9

    No nearby objects data