Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.361317E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-14T09:58:10+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 48865
    NORAD ID 48865
    Object Type PAYLOAD
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 64540
    NORAD ID 64540
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2550 ARCSTONE
    Time of Closest Approach 2026-09-16T02:14:59+0000
    Collision Probability (Pc) 1.361317E-5
    Conjunction Distance (km) 1.223 km
    Relative Speed (km/s) 15.035 km/s
    Conjunction Risk Parameters R (Radial): -0.263 | I (In-track): 0.208 | C (Cross-track): -1.175
    Collision Risk Index (CRI) 0.58
    X Position (km) 5044.23 5044.651
    Position Y (km) 2164.594 2163.549
    Position Z (km) -4087.913 -4088.387
    Velocity X (km/s) -5.123 4.618
    Velocity Y (km/s) 1.823 0.635
    Velocity Z (km/s) -5.353 6.037

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2550 ARCSTONE
    Semimajor Axis (a) 6842.509 km 6837.323 km
    Eccentricity (e) 0.000835 0.000215
    Inclination (i) 67.1433° 97.4698°
    RAAN 191.7395° 14.7710°
    Perigee Argument 268.3445° 209.5807°
    Mean Anomaly (M) 91.6753° 150.5315°
    Apogee 470.085 km 460.659 km
    Perigee 458.659 km 457.713 km
    Orbit Epoch 2026-09-13T20:04:59+0000 2026-09-13T07:09:49+0000

    COSMOS 2550 & ARCSTONE Collision Probability (Pc) Trend

    COSMOS 2550 & ARCSTONE Collision Probability (Pc) TrendNot Available

    COSMOS 2550 & ARCSTONE Miss Distance (Miss Distance) Trend

    COSMOS 2550 & ARCSTONE Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2550Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ARCSTONEMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2550Collision Probability Trend

    Object 1 Probability TrendNot Available

    ARCSTONECollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2550

    No nearby objects data