Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 12 19.  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)
 12/23/2020   06:59:17   ( -78.90,-132.97) 12/23/2020   06:58:10  ( -78.90,-133.13)    3.44                67
 12/23/2020   07:50:02   (  78.91,  34.31) 12/23/2020   07:49:10  (  78.92,  34.27)    1.64                52
 12/23/2020   08:40:47   ( -78.94,-158.59) 12/23/2020   08:40:10  ( -78.92,-158.52)    3.03                37
 12/23/2020   09:31:31   (  78.91,   8.94) 12/23/2020   09:31:10  (  78.94,   8.89)    3.30                21
 12/23/2020   10:22:16   ( -78.94, 176.04) 12/23/2020   10:22:10  ( -78.93, 176.10)    1.52                 6
 12/23/2020   11:13:01   (  78.94, -16.68) 12/23/2020   11:13:11  (  78.92, -16.75)    3.23                10
 12/23/2020   12:03:45   ( -78.94, 150.67) 12/23/2020   12:04:10  ( -78.95, 150.72)    1.13                25
 12/23/2020   12:54:30   (  78.94, -42.04) 12/23/2020   12:55:11  (  78.93, -42.13)    2.08                41
 12/23/2020   13:45:14   ( -78.94, 125.31) 12/23/2020   13:46:10  ( -78.96, 125.33)    2.45                56
 12/23/2020   14:35:59   (  78.94, -67.41) 12/23/2020   14:37:11  (  78.95, -67.51)    2.10                72