Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 12 16.  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   06:59:18   ( -78.93,-133.14) 12/23/2020   06:58:10  ( -78.92,-133.03)    2.83                68
 12/23/2020   07:50:02   (  78.90,  34.37) 12/23/2020   07:49:10  (  78.93,  34.36)    3.73                52
 12/23/2020   08:40:47   ( -78.93,-158.51) 12/23/2020   08:40:10  ( -78.93,-158.41)    2.07                37
 12/23/2020   09:31:32   (  78.94,   8.76) 12/23/2020   09:31:11  (  78.92,   8.73)    2.32                21
 12/23/2020   10:22:16   ( -78.93, 176.12) 12/23/2020   10:22:10  ( -78.94, 176.20)    2.52                 6
 12/23/2020   11:13:01   (  78.94, -16.61) 12/23/2020   11:13:11  (  78.93, -16.65)    1.04                10
 12/23/2020   12:03:45   ( -78.93, 150.75) 12/23/2020   12:04:10  ( -78.96, 150.82)    3.76                25
 12/23/2020   12:54:30   (  78.94, -41.98) 12/23/2020   12:55:11  (  78.95, -42.03)    1.69                41
 12/23/2020   13:45:15   ( -78.96, 125.14) 12/23/2020   13:46:11  ( -78.94, 125.18)    2.67                56
 12/23/2020   14:35:59   (  78.93, -67.35) 12/23/2020   14:37:11  (  78.96, -67.41)    3.27                72