Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    4.081133E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T07:39:19+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 64535
    NORAD ID 64535
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    Name SNAPPY
    AOE ID 69014
    NORAD ID 69014
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter UND ROADS 1 SNAPPY
    Time of Closest Approach 2026-10-21T21:54:41+0000
    Collision Probability (Pc) 4.081133E-5
    Conjunction Distance (km) 0.879 km
    Relative Speed (km/s) 14.221 km/s
    Conjunction Risk Parameters R (Radial): 0.34 | I (In-track): -0.292 | C (Cross-track): -0.755
    Collision Risk Index (CRI) 0.67
    X Position (km) -2190.054 -2190.357
    Position Y (km) -1258.517 -1257.756
    Position Z (km) -6403.482 -6403.162
    Velocity X (km/s) 4.385 -7.068
    Velocity Y (km/s) 5.63 -0.985
    Velocity Z (km/s) -2.609 2.616

    Orbital Parameters 国际轨道数据源

    Parameter UND ROADS 1 SNAPPY
    Semimajor Axis (a) 6872.871 km 6878.004 km
    Eccentricity (e) 0.000577 0.000575
    Inclination (i) 97.4784° 97.3899°
    RAAN 44.7081° 187.9552°
    Perigee Argument 107.2164° 1.1609°
    Mean Anomaly (M) 252.9704° 358.9639°
    Apogee 498.697 km 503.821 km
    Perigee 490.771 km 495.913 km
    Orbit Epoch 2026-10-17T06:29:31+0000 2026-10-19T03:56:45+0000

    UND ROADS 1 & SNAPPY Collision Probability (Pc) Trend

    UND ROADS 1 & SNAPPY Collision Probability (Pc) TrendNot Available

    UND ROADS 1 & SNAPPY Miss Distance (Miss Distance) Trend

    UND ROADS 1 & SNAPPY Miss Distance (Miss Distance) TrendNot Available

    UND ROADS 1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SNAPPYMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    UND ROADS 1Collision Probability Trend

    Object 1 Probability TrendNot Available

    SNAPPYCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with UND ROADS 1

    No nearby objects data