Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    1.9293E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T22:31:15+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 65575
    NORAD ID 65575
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CHECKMATE 2 PRAETORIAN SDA_612
    Time of Closest Approach 2026-10-23T17:22:10+0000
    Collision Probability (Pc) 1.9293E-4
    Conjunction Distance (km) 0.423 km
    Relative Speed (km/s) 6.97 km/s
    Conjunction Risk Parameters R (Radial): -0.353 | I (In-track): 0.204 | C (Cross-track): 0.112
    Collision Risk Index (CRI) 0.81
    X Position (km) 1252.005 1252.108
    Position Y (km) 258.322 258.107
    Position Z (km) 7205.202 7205.55
    Velocity X (km/s) -4.498 2.262
    Velocity Y (km/s) 5.819 6.992
    Velocity Z (km/s) 0.577 -0.649

    Orbital Parameters 国际轨道数据源

    Parameter CHECKMATE 2 PRAETORIAN SDA_612
    Semimajor Axis (a) 7323.711 km 7324.194 km
    Eccentricity (e) 0.000659 0.000856
    Inclination (i) 81.0029° 81.3000°
    RAAN 310.9920° 253.9330°
    Perigee Argument 345.3224° 204.7983°
    Mean Anomaly (M) 14.7740° 155.2764°
    Apogee 950.397 km 952.326 km
    Perigee 940.751 km 939.788 km
    Orbit Epoch 2026-10-21T00:49:00+0000 2026-10-20T21:17:44+0000

    CHECKMATE 2 & PRAETORIAN SDA_612 Collision Probability (Pc) Trend

    CHECKMATE 2 & PRAETORIAN SDA_612 Collision Probability (Pc) TrendNot Available

    CHECKMATE 2 & PRAETORIAN SDA_612 Miss Distance (Miss Distance) Trend

    CHECKMATE 2 & PRAETORIAN SDA_612 Miss Distance (Miss Distance) TrendNot Available

    CHECKMATE 2Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    PRAETORIAN SDA_612Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CHECKMATE 2Collision Probability Trend

    Object 1 Probability TrendNot Available

    PRAETORIAN SDA_612Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CHECKMATE 2

    No nearby objects data