Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2023 2 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)
 02/16/2023   21:46:47   ( -76.63,  22.68) 02/16/2023   21:45:36  ( -76.63,  20.98)   43.65                71
 02/16/2023   22:37:38   (  76.84,-170.88) 02/16/2023   22:36:34  (  76.86,-170.80)    2.58                64
 02/16/2023   23:28:24   ( -76.86,  -3.64) 02/16/2023   23:27:30  ( -76.86,  -3.54)    2.56                54
 02/17/2023   00:19:10   (  76.86, 163.67) 02/17/2023   00:18:33  (  76.88, 163.78)    3.27                37
 02/17/2023   01:09:56   ( -76.88, -29.09) 02/17/2023   01:09:29  ( -76.87, -28.96)    3.17                27
 02/17/2023   02:00:42   (  76.88, 138.22) 02/17/2023   02:00:33  (  76.85, 138.18)    2.99                 9
 02/17/2023   02:51:28   ( -76.89, -54.53) 02/17/2023   02:51:28  ( -76.89, -54.38)    3.82                 0
 02/17/2023   03:42:14   (  76.89, 112.78) 02/17/2023   03:42:32  (  76.87, 112.76)    2.60                18
 02/17/2023   04:33:00   ( -76.91, -79.98) 02/17/2023   04:33:27  ( -76.91, -79.80)    4.48                27
 02/17/2023   05:23:46   (  76.91,  87.33) 02/17/2023   05:24:31  (  76.89,  87.34)    2.39                45
 02/17/2023   06:14:31   ( -76.88,-105.25) 02/17/2023   06:15:27  ( -76.88,-105.41)    3.98                56
 02/17/2023   07:05:18   (  76.92,  61.88) 02/17/2023   07:06:30  (  76.90,  61.92)    2.41                72
 02/17/2023   07:56:11   ( -77.24,-132.16) 02/17/2023   07:57:19  ( -77.19,-129.51)   65.42                68