Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 6 21.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 06/28/2020   04:50:55   ( -79.35,-104.61) 06/28/2020   04:49:48  ( -79.33,-104.69)    3.26                67
 06/28/2020   05:41:39   (  79.34,  62.83) 06/28/2020   05:40:43  (  79.34,  62.74)    1.97                56
 06/28/2020   06:32:24   ( -79.35,-129.97) 06/28/2020   06:31:48  ( -79.34,-130.03)    1.39                36
 06/28/2020   07:23:08   (  79.33,  37.47) 06/28/2020   07:22:43  (  79.36,  37.40)    3.35                25
 06/28/2020   08:13:53   ( -79.35,-155.32) 06/28/2020   08:13:48  ( -79.36,-155.36)    1.72                 5
 06/28/2020   09:04:38   (  79.37,  11.85) 06/28/2020   09:04:44  (  79.35,  11.78)    2.44                 6
 06/28/2020   09:55:23   ( -79.38, 179.06) 06/28/2020   09:55:49  ( -79.35, 179.02)    3.47                26
 06/28/2020   10:46:07   (  79.36, -13.50) 06/28/2020   10:46:44  (  79.37, -13.56)    1.18                37
 06/28/2020   11:36:52   ( -79.38, 153.71) 06/28/2020   11:37:49  ( -79.37, 153.68)    1.29                57
 06/28/2020   12:27:36   (  79.36, -38.85) 06/28/2020   12:28:44  (  79.38, -38.90)    2.46                68