Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2022 5 13.  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   21:01:41   ( -77.35,  28.23) 05/17/2022   21:00:31  ( -77.37,  26.34)   46.21                70
 05/17/2022   21:52:32   (  77.59,-165.53) 05/17/2022   21:51:26  (  77.56,-165.47)    3.53                66
 05/17/2022   22:43:18   ( -77.59,   1.76) 05/17/2022   22:42:26  ( -77.57,   1.83)    3.02                52
 05/17/2022   23:34:03   (  77.57, 169.17) 05/17/2022   23:33:25  (  77.59, 169.23)    3.15                38
 05/18/2022   00:24:49   ( -77.57, -23.54) 05/18/2022   00:24:26  ( -77.56, -23.68)    3.41                23
 05/18/2022   01:15:35   (  77.60, 143.66) 05/18/2022   01:15:25  (  77.59, 143.73)    1.49                10
 05/18/2022   02:06:21   ( -77.60, -49.04) 05/18/2022   02:06:25  ( -77.60, -48.98)    1.51                 4
 05/18/2022   02:57:06   (  77.58, 118.36) 05/18/2022   02:57:25  (  77.59, 118.22)    3.58                19
 05/18/2022   03:47:53   ( -77.62, -74.55) 05/18/2022   03:48:25  ( -77.60, -74.49)    3.13                32
 05/18/2022   04:38:38   (  77.61,  92.86) 05/18/2022   04:39:24  (  77.63,  92.92)    3.03                46
 05/18/2022   05:29:24   ( -77.61, -99.85) 05/18/2022   05:30:24  ( -77.64, -99.79)    3.33                60
 05/18/2022   06:20:10   (  77.63,  67.35) 05/18/2022   06:21:24  (  77.63,  67.41)    1.51                74