Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 1 2.  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)
 01/05/2021   23:57:42   (  78.89, 152.55) 01/05/2021   23:56:34  (  78.88, 152.67)    2.75                68
 01/06/2021   00:48:26   ( -78.90, -40.20) 01/06/2021   00:47:31  ( -78.87, -40.14)    3.61                55
 01/06/2021   01:39:11   (  78.89, 127.18) 01/06/2021   01:38:34  (  78.90, 127.28)    2.25                37
 01/06/2021   02:29:55   ( -78.90, -65.57) 01/06/2021   02:29:31  ( -78.89, -65.53)    1.95                24
 01/06/2021   03:20:40   (  78.89, 101.81) 01/06/2021   03:20:34  (  78.91, 101.90)    2.90                 6
 01/06/2021   04:11:24   ( -78.90, -90.94) 01/06/2021   04:11:31  ( -78.90, -90.92)    0.54                 7
 01/06/2021   05:02:09   (  78.89,  76.44) 01/06/2021   05:02:35  (  78.90,  76.26)    3.83                26
 01/06/2021   05:52:53   ( -78.90,-116.31) 01/06/2021   05:53:31  ( -78.92,-116.30)    1.56                38
 01/06/2021   06:43:39   (  78.93,  50.83) 01/06/2021   06:44:35  (  78.91,  50.88)    2.44                56
 01/06/2021   07:34:22   ( -78.90,-141.68) 01/06/2021   07:35:31  ( -78.93,-141.69)    3.19                69