Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 6 22.  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   (  78.20,  24.90) 07/03/2021   08:47:56  (  78.22,  22.31)   58.93                68
 07/03/2021   09:39:54   ( -78.42,-169.04) 07/03/2021   09:38:52  ( -78.43,-169.11)    1.83                62
 07/03/2021   10:30:39   (  78.43,  -1.82) 07/03/2021   10:29:50  (  78.45,  -1.73)    2.57                49
 07/03/2021   11:21:23   ( -78.42, 165.57) 07/03/2021   11:20:52  ( -78.44, 165.47)    3.17                31
 07/03/2021   12:12:08   (  78.44, -27.20) 07/03/2021   12:11:50  (  78.46, -27.15)    2.66                18
 07/03/2021   13:02:53   ( -78.46, 139.96) 07/03/2021   13:02:52  ( -78.45, 140.04)    2.10                 1
 07/03/2021   13:53:37   (  78.44, -52.59) 07/03/2021   13:53:50  (  78.47, -52.58)    3.35                13
 07/03/2021   14:44:21   ( -78.46, 114.58) 07/03/2021   14:44:51  ( -78.46, 114.62)    0.86                30
 07/03/2021   15:35:06   (  78.48, -78.20) 07/03/2021   15:35:50  (  78.44, -78.24)    4.08                44
 07/03/2021   16:25:50   ( -78.47,  89.20) 07/03/2021   16:26:51  ( -78.47,  89.20)    0.85                61
 07/03/2021   17:16:35   (  78.48,-103.58) 07/03/2021   17:17:49  (  78.49,-103.43)    3.50                74