Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 4 15.  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)
 04/20/2020   20:11:34   ( -79.48,  24.09) 04/20/2020   20:10:23  ( -79.49,  23.97)    2.78                71
 04/20/2020   21:02:19   (  79.51,-168.88) 04/20/2020   21:01:25  (  79.50,-168.75)    3.30                54
 04/20/2020   21:53:03   ( -79.51,  -1.53) 04/20/2020   21:52:22  ( -79.51,  -1.35)    3.66                41
 04/20/2020   22:43:48   (  79.51, 165.77) 04/20/2020   22:43:25  (  79.51, 165.94)    3.35                23
 04/20/2020   23:34:32   ( -79.51, -26.88) 04/20/2020   23:34:23  ( -79.50, -26.95)    1.74                 9
 04/21/2020   00:25:17   (  79.51, 140.42) 04/21/2020   00:25:26  (  79.50, 140.34)    1.82                 9
 04/21/2020   01:16:01   ( -79.50, -52.23) 04/21/2020   01:16:23  ( -79.52, -52.27)    1.66                22
 04/21/2020   02:06:46   (  79.51, 115.07) 04/21/2020   02:07:26  (  79.52, 115.02)    2.16                40
 04/21/2020   02:57:31   ( -79.53, -77.85) 04/21/2020   02:58:24  ( -79.51, -77.88)    3.15                53
 04/21/2020   03:48:16   (  79.54,  89.45) 04/21/2020   03:49:27  (  79.51,  89.42)    2.67                71