Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2022 5 11.  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)
 05/17/2022   21:01:42   ( -77.38,  28.12) 05/17/2022   21:00:31  ( -77.38,  26.42)   41.53                71
 05/17/2022   21:52:32   (  77.57,-165.45) 05/17/2022   21:51:26  (  77.57,-165.39)    1.34                66
 05/17/2022   22:43:18   ( -77.57,   1.85) 05/17/2022   22:42:26  ( -77.58,   1.91)    1.98                52
 05/17/2022   23:34:04   (  77.59, 169.05) 05/17/2022   23:33:26  (  77.57, 169.10)    3.02                38
 05/18/2022   00:24:50   ( -77.60, -23.65) 05/18/2022   00:24:26  ( -77.58, -23.59)    2.37                24
 05/18/2022   01:15:35   (  77.58, 143.75) 05/18/2022   01:15:25  (  77.61, 143.80)    3.50                10
 05/18/2022   02:06:21   ( -77.58, -48.96) 05/18/2022   02:06:26  ( -77.58, -49.10)    3.49                 5
 05/18/2022   02:57:07   (  77.60, 118.24) 05/18/2022   02:57:25  (  77.61, 118.30)    1.29                18
 05/18/2022   03:47:53   ( -77.61, -74.46) 05/18/2022   03:48:25  ( -77.61, -74.41)    1.57                32
 05/18/2022   04:38:39   (  77.63,  92.74) 05/18/2022   04:39:25  (  77.60,  92.79)    3.07                46
 05/18/2022   05:29:25   ( -77.63, -99.96) 05/18/2022   05:30:25  ( -77.61, -99.92)    2.44                60
 05/18/2022   06:20:10   (  77.61,  67.44) 05/18/2022   06:21:24  (  77.64,  67.49)    3.42                74