Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2022 4 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)
 04/17/2022   16:50:04   ( -77.63,  89.63) 04/17/2022   16:48:50  ( -77.65,  89.61)    2.13                74
 04/17/2022   17:40:50   (  77.63,-103.06) 04/17/2022   17:39:44  (  77.65,-103.13)    2.54                66
 04/17/2022   18:31:36   ( -77.66,  64.13) 04/17/2022   18:30:50  ( -77.65,  64.11)    0.75                46
 04/17/2022   19:22:22   (  77.65,-128.56) 04/17/2022   19:21:44  (  77.65,-128.63)    1.86                38
 04/17/2022   20:13:08   ( -77.68,  38.63) 04/17/2022   20:12:50  ( -77.65,  38.62)    3.25                18
 04/17/2022   21:03:54   (  77.68,-154.05) 04/17/2022   21:03:43  (  77.69,-153.91)    3.48                11
 04/17/2022   21:54:39   ( -77.66,  13.34) 04/17/2022   21:54:49  ( -77.69,  13.33)    3.07                10
 04/17/2022   22:45:25   (  77.66,-179.35) 04/17/2022   22:45:43  (  77.69,-179.41)    3.09                18
 04/17/2022   23:36:11   ( -77.69, -12.16) 04/17/2022   23:36:49  ( -77.69, -12.17)    0.44                38
 04/18/2022   00:26:57   (  77.69, 155.15) 04/18/2022   00:27:43  (  77.69, 155.10)    1.20                46
 04/18/2022   01:17:43   ( -77.71, -37.66) 04/18/2022   01:18:49  ( -77.69, -37.66)    2.22                66
 04/18/2022   02:08:29   (  77.71, 129.65) 04/18/2022   02:09:43  (  77.69, 129.60)    2.75                74