Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2022 4 5.  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)
 04/17/2022   16:50:04   ( -77.65,  89.53) 04/17/2022   16:48:49  ( -77.66,  89.67)    3.37                75
 04/17/2022   17:40:50   (  77.65,-103.17) 04/17/2022   17:39:43  (  77.65,-103.08)    2.03                67
 04/17/2022   18:31:35   ( -77.63,  64.23) 04/17/2022   18:30:49  ( -77.66,  64.17)    3.20                46
 04/17/2022   19:22:21   (  77.64,-128.47) 04/17/2022   19:21:43  (  77.66,-128.58)    3.29                38
 04/17/2022   20:13:07   ( -77.66,  38.74) 04/17/2022   20:12:49  ( -77.66,  38.68)    1.43                18
 04/17/2022   21:03:53   (  77.66,-153.97) 04/17/2022   21:03:43  (  77.66,-154.07)    2.68                10
 04/17/2022   21:54:39   ( -77.68,  13.24) 04/17/2022   21:54:49  ( -77.66,  13.18)    2.79                10
 04/17/2022   22:45:25   (  77.69,-179.47) 04/17/2022   22:45:42  (  77.70,-179.36)    2.64                17
 04/17/2022   23:36:11   ( -77.71, -12.26) 04/17/2022   23:36:48  ( -77.70, -12.11)    3.67                37
 04/18/2022   00:26:57   (  77.71, 155.04) 04/18/2022   00:27:42  (  77.70, 155.14)    3.04                45
 04/18/2022   01:17:42   ( -77.69, -37.55) 04/18/2022   01:18:48  ( -77.70, -37.60)    1.63                66
 04/18/2022   02:08:28   (  77.69, 129.74) 04/18/2022   02:09:42  (  77.70, 129.65)    2.16                74