Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 1 27.  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   09:54:26   (  78.80,   4.09) 02/02/2021   09:53:14  (  78.83,   4.16)    3.04                72
 02/02/2021   10:45:10   ( -78.81, 171.34) 02/02/2021   10:44:11  ( -78.80, 171.26)    1.85                59
 02/02/2021   11:35:56   (  78.84, -21.52) 02/02/2021   11:35:15  (  78.81, -21.48)    3.71                41
 02/02/2021   12:26:39   ( -78.81, 145.96) 02/02/2021   12:26:11  ( -78.82, 145.88)    2.01                28
 02/02/2021   13:17:25   (  78.84, -46.90) 02/02/2021   13:17:15  (  78.82, -46.87)    2.08                10
 02/02/2021   14:08:08   ( -78.81, 120.59) 02/02/2021   14:08:11  ( -78.83, 120.49)    3.17                 3
 02/02/2021   14:58:54   (  78.84, -72.27) 02/02/2021   14:59:15  (  78.84, -72.26)    0.47                21
 02/02/2021   15:49:38   ( -78.85,  94.98) 02/02/2021   15:50:11  ( -78.85,  95.10)    2.58                33
 02/02/2021   16:40:23   (  78.84, -97.64) 02/02/2021   16:41:15  (  78.85, -97.65)    1.14                52
 02/02/2021   17:31:07   ( -78.85,  69.61) 02/02/2021   17:32:11  ( -78.86,  69.71)    2.61                64