Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2023 2 10.  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   ( -76.60,  22.77) 02/16/2023   21:45:36  ( -76.60,  20.88)   48.65                70
 02/16/2023   22:37:37   (  76.82,-170.79) 02/16/2023   22:36:34  (  76.83,-170.90)    3.34                63
 02/16/2023   23:28:23   ( -76.84,  -3.55) 02/16/2023   23:27:30  ( -76.83,  -3.65)    2.67                53
 02/17/2023   00:19:09   (  76.84, 163.77) 02/17/2023   00:18:33  (  76.85, 163.68)    2.85                36
 02/17/2023   01:09:55   ( -76.85, -29.00) 02/17/2023   01:09:29  ( -76.85, -29.07)    2.03                26
 02/17/2023   02:00:41   (  76.85, 138.32) 02/17/2023   02:00:32  (  76.87, 138.26)    2.45                 9
 02/17/2023   02:51:27   ( -76.87, -54.44) 02/17/2023   02:51:28  ( -76.87, -54.49)    1.40                 1
 02/17/2023   03:42:13   (  76.87, 112.87) 02/17/2023   03:42:31  (  76.89, 112.84)    2.19                18
 02/17/2023   04:32:59   ( -76.89, -79.89) 02/17/2023   04:33:27  ( -76.88, -79.91)    0.80                28
 02/17/2023   05:23:45   (  76.88,  87.43) 02/17/2023   05:24:30  (  76.90,  87.42)    2.15                45
 02/17/2023   06:14:31   ( -76.90,-105.34) 02/17/2023   06:15:26  ( -76.90,-105.34)    0.42                55
 02/17/2023   07:05:17   (  76.90,  61.98) 02/17/2023   07:06:29  (  76.92,  62.00)    2.33                72
 02/17/2023   07:56:10   ( -77.22,-132.07) 02/17/2023   07:57:18  ( -77.21,-129.44)   64.70                68