Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 6 26.  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)
 07/03/2021   08:49:04   (  78.21,  24.85) 07/03/2021   08:47:56  (  78.21,  22.25)   59.32                68
 07/03/2021   09:39:54   ( -78.43,-169.09) 07/03/2021   09:38:52  ( -78.42,-169.19)    2.54                62
 07/03/2021   10:30:39   (  78.44,  -1.87) 07/03/2021   10:29:50  (  78.44,  -1.79)    1.74                49
 07/03/2021   11:21:23   ( -78.43, 165.53) 07/03/2021   11:20:52  ( -78.43, 165.39)    3.16                31
 07/03/2021   12:12:08   (  78.44, -27.25) 07/03/2021   12:11:50  (  78.45, -27.22)    0.82                18
 07/03/2021   13:02:53   ( -78.47, 139.92) 07/03/2021   13:02:52  ( -78.44, 139.96)    3.52                 1
 07/03/2021   13:53:37   (  78.45, -52.63) 07/03/2021   13:53:50  (  78.46, -52.65)    1.38                13
 07/03/2021   14:44:22   ( -78.47, 114.54) 07/03/2021   14:44:52  ( -78.45, 114.54)    2.36                30
 07/03/2021   15:35:06   (  78.45, -78.02) 07/03/2021   15:35:50  (  78.47, -78.07)    2.60                44
 07/03/2021   16:25:51   ( -78.47,  89.15) 07/03/2021   16:26:52  ( -78.46,  89.12)    1.57                61
 07/03/2021   17:16:36   (  78.49,-103.63) 07/03/2021   17:17:50  (  78.48,-103.50)    3.06                74