Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 3 28.  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)
 03/29/2021   06:38:31   ( -78.69,-125.92) 03/29/2021   06:37:21  ( -78.67,-125.81)    2.91                70
 03/29/2021   07:29:15   (  78.67,  41.49) 03/29/2021   07:28:15  (  78.68,  41.55)    1.75                60
 03/29/2021   08:20:00   ( -78.69,-151.29) 03/29/2021   08:19:21  ( -78.69,-151.21)    1.85                39
 03/29/2021   09:10:44   (  78.67,  16.11) 03/29/2021   09:10:15  (  78.70,  16.15)    2.73                29
 03/29/2021   10:01:28   ( -78.69,-176.67) 03/29/2021   10:01:20  ( -78.70,-176.61)    1.75                 8
 03/29/2021   10:52:13   (  78.71,  -9.50) 03/29/2021   10:52:15  (  78.68,  -9.49)    3.92                 2
 03/29/2021   11:42:57   ( -78.69, 157.96) 03/29/2021   11:43:20  ( -78.71, 157.99)    2.70                23
 03/29/2021   12:33:42   (  78.71, -34.88) 03/29/2021   12:34:15  (  78.69, -34.89)    2.50                33
 03/29/2021   13:24:27   ( -78.73, 132.34) 03/29/2021   13:25:21  ( -78.69, 132.35)    3.92                54
 03/29/2021   14:15:11   (  78.71, -60.25) 03/29/2021   14:16:15  (  78.70, -60.29)    1.33                64