Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 1 8.  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   ( -78.85,  78.28) 01/19/2021   16:54:51  ( -78.84,  78.30)    1.92                73
 01/19/2021   17:46:49   (  78.84,-114.33) 01/19/2021   17:45:56  (  78.84,-114.47)    2.99                53
 01/19/2021   18:37:33   ( -78.85,  52.91) 01/19/2021   18:36:51  ( -78.85,  52.92)    0.27                42
 01/19/2021   19:28:18   (  78.84,-139.70) 01/19/2021   19:27:56  (  78.85,-139.86)    3.42                22
 01/19/2021   20:19:02   ( -78.85,  27.54) 01/19/2021   20:18:51  ( -78.87,  27.53)    1.40                11
 01/19/2021   21:09:48   (  78.88,-165.32) 01/19/2021   21:09:56  (  78.87,-165.24)    2.17                 8
 01/19/2021   22:00:31   ( -78.85,   2.17) 01/19/2021   22:00:51  ( -78.88,   2.14)    3.04                20
 01/19/2021   22:51:17   (  78.88, 169.31) 01/19/2021   22:51:56  (  78.88, 169.37)    1.29                39
 01/19/2021   23:42:01   ( -78.89, -23.45) 01/19/2021   23:42:52  ( -78.86, -23.50)    3.32                51
 01/20/2021   00:32:46   (  78.88, 143.94) 01/20/2021   00:33:56  (  78.90, 143.98)    2.01                70