Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.115798E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T14:33:16+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 4953
    NORAD ID 4953
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 39668
    NORAD ID 39668
    Object Type DEBRIS
    Country
    CIS CIS

    Conjunction Constraints

    Parameter OPS 5268 (DMSP 5A F3) COSMOS 1867 COOLANT
    Time of Closest Approach 2026-10-28T20:38:42+0000
    Collision Probability (Pc) 2.115798E-6
    Conjunction Distance (km) 2.272 km
    Relative Speed (km/s) 14.761 km/s
    Conjunction Risk Parameters R (Radial): -1.816 | I (In-track): -0.206 | C (Cross-track): -1.347
    Collision Risk Index (CRI) 0.42
    X Position (km) 7011.093 7009.119
    Position Y (km) -1271.429 -1272.395
    Position Z (km) -683.233 -682.658
    Velocity X (km/s) -0.871 1.208
    Velocity Y (km/s) -0.96 2.999
    Velocity Z (km/s) -7.337 6.73

    Orbital Parameters 国际轨道数据源

    Parameter OPS 5268 (DMSP 5A F3) COSMOS 1867 COOLANT
    Semimajor Axis (a) 7129.287 km 7156.273 km
    Eccentricity (e) 0.003791 0.001991
    Inclination (i) 98.4593° 65.0113°
    RAAN 169.6097° 1.4831°
    Perigee Argument 29.3799° 275.7410°
    Mean Anomaly (M) 330.9511° 84.1406°
    Apogee 778.179 km 792.382 km
    Perigee 724.121 km 763.890 km
    Orbit Epoch 2026-10-27T22:08:39+0000 2026-10-25T14:00:39+0000

    OPS 5268 (DMSP 5A F3) & COSMOS 1867 COOLANT Collision Probability (Pc) Trend

    OPS 5268 (DMSP 5A F3) & COSMOS 1867 COOLANT Collision Probability (Pc) TrendNot Available

    OPS 5268 (DMSP 5A F3) & COSMOS 1867 COOLANT Miss Distance (Miss Distance) Trend

    OPS 5268 (DMSP 5A F3) & COSMOS 1867 COOLANT Miss Distance (Miss Distance) TrendNot Available

    OPS 5268 (DMSP 5A F3)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    COSMOS 1867 COOLANTMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    OPS 5268 (DMSP 5A F3)Collision Probability Trend

    Object 1 Probability TrendNot Available

    COSMOS 1867 COOLANTCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OPS 5268 (DMSP 5A F3)

    No nearby objects data