Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2022 12 15.  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)
 12/16/2022   20:42:38   ( -76.83,  37.20) 12/16/2022   20:41:26  ( -76.82,  35.87)   33.77                72
 12/16/2022   21:33:28   (  76.97,-156.06) 12/16/2022   21:32:16  (  77.00,-156.08)    3.32                72
 12/16/2022   22:24:14   ( -77.02,  11.05) 12/16/2022   22:23:21  ( -77.01,  11.21)    3.98                53
 12/16/2022   23:15:00   (  76.98, 178.51) 12/16/2022   23:14:16  (  76.98, 178.34)    4.11                44
 12/17/2022   00:05:46   ( -77.03, -14.38) 12/17/2022   00:05:21  ( -77.00, -14.36)    3.58                25
 12/17/2022   00:56:32   (  76.99, 153.08) 12/17/2022   00:56:15  (  77.01, 152.95)    3.39                17
 12/17/2022   01:47:18   ( -77.04, -39.81) 12/17/2022   01:47:20  ( -77.02, -39.75)    2.54                 2
 12/17/2022   02:38:05   (  77.05, 127.46) 12/17/2022   02:38:14  (  77.03, 127.56)    3.24                 9
 12/17/2022   03:28:50   ( -77.05, -65.23) 12/17/2022   03:29:19  ( -77.04, -65.14)    2.49                29
 12/17/2022   04:19:37   (  77.06, 102.03) 12/17/2022   04:20:13  (  77.05, 102.17)    3.56                36
 12/17/2022   05:10:22   ( -77.06, -90.66) 12/17/2022   05:11:18  ( -77.07, -90.53)    3.45                56
 12/17/2022   06:01:09   (  77.07,  76.60) 12/17/2022   06:02:13  (  77.04,  76.60)    4.04                64
 12/17/2022   06:52:03   ( -77.45,-117.79) 12/17/2022   06:53:09  ( -77.42,-114.37)   82.87                66