Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 1 17.  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   16:56:04   ( -78.86,  78.22) 01/19/2021   16:54:51  ( -78.84,  78.28)    3.32                73
 01/19/2021   17:46:49   (  78.85,-114.36) 01/19/2021   17:45:56  (  78.84,-114.45)    2.05                53
 01/19/2021   18:37:33   ( -78.86,  52.85) 01/19/2021   18:36:51  ( -78.85,  52.90)    1.72                42
 01/19/2021   19:28:18   (  78.85,-139.73) 01/19/2021   19:27:56  (  78.85,-139.84)    2.40                22
 01/19/2021   20:19:02   ( -78.86,  27.48) 01/19/2021   20:18:51  ( -78.86,  27.51)    0.70                11
 01/19/2021   21:09:48   (  78.88,-165.35) 01/19/2021   21:09:56  (  78.87,-165.22)    3.09                 8
 01/19/2021   22:00:31   ( -78.86,   2.11) 01/19/2021   22:00:51  ( -78.88,   2.12)    1.90                20
 01/19/2021   22:51:17   (  78.88, 169.28) 01/19/2021   22:51:56  (  78.88, 169.39)    2.32                39
 01/19/2021   23:42:00   ( -78.86, -23.26) 01/19/2021   23:42:51  ( -78.89, -23.26)    3.50                51
 01/20/2021   00:32:46   (  78.88, 143.91) 01/20/2021   00:33:56  (  78.90, 144.00)    2.61                70