Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 12 29.  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)
 01/02/2022   05:30:38   ( -77.95,-102.84) 01/02/2022   05:29:27  ( -77.92,-102.87)    3.27                71
 01/02/2022   06:21:23   (  77.93,  64.59) 01/02/2022   06:20:24  (  77.96,  64.57)    2.98                59
 01/02/2022   07:12:09   ( -77.93,-128.11) 01/02/2022   07:11:26  ( -77.97,-128.12)    3.85                43
 01/02/2022   08:02:55   (  77.95,  39.11) 01/02/2022   08:02:24  (  77.96,  39.10)    1.26                31
 01/02/2022   08:53:41   ( -77.95,-153.60) 01/02/2022   08:53:26  ( -77.97,-153.59)    2.13                15
 01/02/2022   09:44:27   (  77.97,  13.62) 01/02/2022   09:44:24  (  77.97,  13.64)    0.57                 3
 01/02/2022   10:35:13   ( -77.97,-179.09) 01/02/2022   10:35:26  ( -77.98,-179.06)    0.69                13
 01/02/2022   11:25:59   (  77.99, -11.87) 01/02/2022   11:26:24  (  77.97, -11.83)    2.25                25
 01/02/2022   12:16:45   ( -77.99, 155.43) 01/02/2022   12:17:26  ( -77.98, 155.47)    1.60                41
 01/02/2022   13:07:30   (  77.97, -37.15) 01/02/2022   13:08:24  (  77.98, -37.29)    3.53                54
 01/02/2022   13:58:17   ( -78.01, 129.94) 01/02/2022   13:59:26  ( -77.99, 130.00)    3.29                69
 01/02/2022   14:49:10   (  78.31, -64.37) 01/02/2022   14:50:16  (  78.28, -60.97)   76.64                66