Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 1 30.  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)
 02/02/2021   09:54:27   (  78.83,   3.92) 02/02/2021   09:53:15  (  78.80,   3.98)    3.18                72
 02/02/2021   10:45:10   ( -78.80, 171.39) 02/02/2021   10:44:11  ( -78.81, 171.33)    1.66                59
 02/02/2021   11:35:56   (  78.83, -21.45) 02/02/2021   11:35:15  (  78.82, -21.41)    1.63                41
 02/02/2021   12:26:39   ( -78.80, 146.02) 02/02/2021   12:26:11  ( -78.83, 145.94)    3.06                28
 02/02/2021   13:17:25   (  78.83, -46.83) 02/02/2021   13:17:15  (  78.83, -46.80)    0.68                10
 02/02/2021   14:08:09   ( -78.84, 120.41) 02/02/2021   14:08:11  ( -78.84, 120.55)    3.08                 2
 02/02/2021   14:58:54   (  78.83, -72.20) 02/02/2021   14:59:15  (  78.85, -72.19)    1.86                21
 02/02/2021   15:49:38   ( -78.84,  95.04) 02/02/2021   15:50:11  ( -78.86,  95.16)    3.19                33
 02/02/2021   16:40:23   (  78.83, -97.57) 02/02/2021   16:41:15  (  78.86, -97.58)    3.41                52
 02/02/2021   17:31:07   ( -78.84,  69.66) 02/02/2021   17:32:12  ( -78.84,  69.52)    3.06                65