Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 11 21.  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)
 12/03/2021   14:02:43   (  77.72, -49.90) 12/03/2021   14:01:37  (  77.71, -53.12)   76.13                66
 12/03/2021   14:53:37   ( -78.04, 115.78) 12/03/2021   14:52:35  ( -78.03, 115.87)    2.55                62
 12/03/2021   15:44:24   (  78.03, -76.87) 12/03/2021   15:43:29  (  78.03, -76.86)    0.69                55
 12/03/2021   16:35:10   ( -78.03,  90.47) 12/03/2021   16:34:35  ( -78.04,  90.41)    1.69                35
 12/03/2021   17:25:58   (  78.06,-102.39) 12/03/2021   17:25:29  (  78.04,-102.32)    3.14                29
 12/03/2021   18:16:44   ( -78.05,  64.95) 12/03/2021   18:16:35  ( -78.04,  64.95)    1.09                 9
 12/03/2021   19:07:31   (  78.04,-127.70) 12/03/2021   19:07:29  (  78.04,-127.78)    1.96                 2
 12/03/2021   19:58:18   ( -78.08,  39.44) 12/03/2021   19:58:35  ( -78.05,  39.49)    3.26                17
 12/03/2021   20:49:05   (  78.07,-153.21) 12/03/2021   20:49:29  (  78.05,-153.24)    2.30                24
 12/03/2021   21:39:51   ( -78.06,  14.13) 12/03/2021   21:40:35  ( -78.06,  14.03)    2.44                44
 12/03/2021   22:30:39   (  78.09,-178.73) 12/03/2021   22:31:29  (  78.05,-178.70)    4.17                50
 12/03/2021   23:21:25   ( -78.08, -11.38) 12/03/2021   23:22:35  ( -78.06, -11.43)    2.63                70
 12/04/2021   00:12:14   (  78.15, 155.54) 12/04/2021   00:13:27  (  78.14, 156.28)   17.11                73