Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    2.268727E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-17T06:42:48+0800
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    1 Object 1

    AOE ID 56167
    NORAD ID 56167
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 65581
    NORAD ID 65581
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CHECKMATE 2 PRAETORIAN SDA_618
    Time of Closest Approach 2026-10-17T04:28:57+0000
    Collision Probability (Pc) 2.268727E-5
    Conjunction Distance (km) 0.902 km
    Relative Speed (km/s) 6.969 km/s
    Conjunction Risk Parameters R (Radial): -0.372 | I (In-track): 0.726 | C (Cross-track): 0.385
    Collision Risk Index (CRI) 0.62
    X Position (km) -1219.889 -1219.596
    Position Y (km) -392.711 -393.479
    Position Z (km) -7218.219 -7217.849
    Velocity X (km/s) 5.099 -1.496
    Velocity Y (km/s) -5.283 -7.184
    Velocity Z (km/s) -0.569 0.639

    Orbital Parameters 国际轨道数据源

    Parameter CHECKMATE 2 PRAETORIAN SDA_618
    Semimajor Axis (a) 7323.714 km 7327.051 km
    Eccentricity (e) 0.000678 0.000895
    Inclination (i) 81.0036° 81.2994°
    RAAN 315.7738° 257.9952°
    Perigee Argument 359.3886° 220.3688°
    Mean Anomaly (M) 0.7261° 139.6806°
    Apogee 950.547 km 955.470 km
    Perigee 940.607 km 942.358 km
    Orbit Epoch 2026-10-16T01:12:03+0000 2026-10-16T15:00:51+0000

    CHECKMATE 2 & PRAETORIAN SDA_618 Collision Probability (Pc) Trend

    CHECKMATE 2 & PRAETORIAN SDA_618 Collision Probability (Pc) TrendNot Available

    CHECKMATE 2 & PRAETORIAN SDA_618 Miss Distance (Miss Distance) Trend

    CHECKMATE 2 & PRAETORIAN SDA_618 Miss Distance (Miss Distance) TrendNot Available

    CHECKMATE 2Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    PRAETORIAN SDA_618Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CHECKMATE 2Collision Probability Trend

    Object 1 Probability TrendNot Available

    PRAETORIAN SDA_618Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CHECKMATE 2

    No nearby objects data