Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2023 2 12.  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   21:46:46   ( -76.61,  22.74) 02/16/2023   21:45:36  ( -76.61,  20.91)   47.12                70
 02/16/2023   22:37:37   (  76.83,-170.81) 02/16/2023   22:36:34  (  76.84,-170.87)    2.43                63
 02/16/2023   23:28:23   ( -76.85,  -3.58) 02/16/2023   23:27:30  ( -76.84,  -3.62)    1.31                53
 02/17/2023   00:19:09   (  76.84, 163.74) 02/17/2023   00:18:33  (  76.86, 163.72)    2.23                36
 02/17/2023   01:09:55   ( -76.86, -29.03) 02/17/2023   01:09:29  ( -76.86, -29.04)    0.84                26
 02/17/2023   02:00:41   (  76.86, 138.30) 02/17/2023   02:00:32  (  76.88, 138.30)    2.24                 9
 02/17/2023   02:51:27   ( -76.88, -54.48) 02/17/2023   02:51:28  ( -76.87, -54.46)    0.74                 1
 02/17/2023   03:42:13   (  76.87, 112.85) 02/17/2023   03:42:31  (  76.90, 112.88)    2.47                18
 02/17/2023   04:32:59   ( -76.89, -79.92) 02/17/2023   04:33:27  ( -76.89, -79.88)    1.14                28
 02/17/2023   05:23:45   (  76.89,  87.40) 02/17/2023   05:24:30  (  76.91,  87.46)    2.86                45
 02/17/2023   06:14:31   ( -76.91,-105.37) 02/17/2023   06:15:26  ( -76.91,-105.30)    1.73                55
 02/17/2023   07:05:17   (  76.91,  61.95) 02/17/2023   07:06:30  (  76.89,  61.85)    3.25                73
 02/17/2023   07:56:11   ( -77.27,-132.29) 02/17/2023   07:57:18  ( -77.21,-129.41)   71.10                67