Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 1 10.  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)
 01/19/2021   16:56:03   ( -78.82,  78.48) 01/19/2021   16:54:51  ( -78.85,  78.39)    3.33                72
 01/19/2021   17:46:49   (  78.85,-114.37) 01/19/2021   17:45:56  (  78.85,-114.37)    0.22                53
 01/19/2021   18:37:33   ( -78.86,  52.86) 01/19/2021   18:36:51  ( -78.86,  53.01)    3.06                42
 01/19/2021   19:28:18   (  78.85,-139.74) 01/19/2021   19:27:56  (  78.87,-139.76)    1.86                22
 01/19/2021   20:19:02   ( -78.86,  27.49) 01/19/2021   20:18:52  ( -78.85,  27.37)    3.23                10
 01/19/2021   21:09:47   (  78.85,-165.11) 01/19/2021   21:09:56  (  78.88,-165.14)    3.49                 9
 01/19/2021   22:00:31   ( -78.86,   2.12) 01/19/2021   22:00:52  ( -78.86,   1.98)    3.06                21
 01/19/2021   22:51:17   (  78.89, 169.27) 01/19/2021   22:51:57  (  78.86, 169.22)    2.96                40
 01/19/2021   23:42:01   ( -78.90, -23.49) 01/19/2021   23:42:52  ( -78.88, -23.41)    3.15                51
 01/20/2021   00:32:46   (  78.89, 143.90) 01/20/2021   00:33:57  (  78.88, 143.83)    1.86                71