Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 1 20.  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   (  78.82,   3.97) 02/02/2021   09:53:15  (  78.82,   4.14)    3.61                72
 02/02/2021   10:45:11   ( -78.83, 171.25) 02/02/2021   10:44:12  ( -78.80, 171.27)    2.46                59
 02/02/2021   11:35:56   (  78.82, -21.40) 02/02/2021   11:35:16  (  78.80, -21.50)    2.93                40
 02/02/2021   12:26:40   ( -78.83, 145.88) 02/02/2021   12:26:12  ( -78.82, 145.88)    0.81                28
 02/02/2021   13:17:25   (  78.82, -46.77) 02/02/2021   13:17:16  (  78.82, -46.89)    2.60                 9
 02/02/2021   14:08:09   ( -78.83, 120.51) 02/02/2021   14:08:12  ( -78.83, 120.49)    0.87                 3
 02/02/2021   14:58:54   (  78.82, -72.15) 02/02/2021   14:59:16  (  78.83, -72.28)    3.20                22
 02/02/2021   15:49:38   ( -78.83,  95.14) 02/02/2021   15:50:12  ( -78.85,  95.11)    2.51                34
 02/02/2021   16:40:24   (  78.86, -97.76) 02/02/2021   16:41:16  (  78.85, -97.67)    2.30                52
 02/02/2021   17:31:08   ( -78.86,  69.52) 02/02/2021   17:32:13  ( -78.83,  69.47)    3.88                65