Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2022 5 11.  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)
 05/17/2022   21:01:41   ( -77.36,  28.22) 05/17/2022   21:00:31  ( -77.36,  26.31)   46.36                70
 05/17/2022   21:52:31   (  77.55,-165.36) 05/17/2022   21:51:26  (  77.55,-165.50)    3.53                65
 05/17/2022   22:43:17   ( -77.55,   1.94) 05/17/2022   22:42:26  ( -77.56,   1.81)    3.42                51
 05/17/2022   23:34:03   (  77.58, 169.14) 05/17/2022   23:33:25  (  77.59, 169.20)    1.86                38
 05/18/2022   00:24:49   ( -77.58, -23.56) 05/18/2022   00:24:25  ( -77.60, -23.50)    2.76                24
 05/18/2022   01:15:35   (  77.60, 143.64) 05/18/2022   01:15:25  (  77.59, 143.69)    2.08                10
 05/18/2022   02:06:21   ( -77.60, -49.06) 05/18/2022   02:06:25  ( -77.60, -49.01)    1.50                 4
 05/18/2022   02:57:06   (  77.59, 118.33) 05/18/2022   02:57:25  (  77.58, 118.18)    3.59                19
 05/18/2022   03:47:52   ( -77.59, -74.37) 05/18/2022   03:48:25  ( -77.59, -74.52)    3.66                33
 05/18/2022   04:38:38   (  77.61,  92.83) 05/18/2022   04:39:24  (  77.62,  92.88)    1.79                46
 05/18/2022   05:29:24   ( -77.61, -99.87) 05/18/2022   05:30:24  ( -77.63, -99.82)    2.37                60
 05/18/2022   06:20:10   (  77.64,  67.33) 05/18/2022   06:21:24  (  77.62,  67.38)    2.13                74