Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 4 15.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-19) NOAA-19 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/25/2021   02:57:44   ( -78.39, -71.76) 04/25/2021   02:58:51  ( -78.39, -71.61)    3.32                67
 04/25/2021   03:48:43   (  78.39,  95.51) 04/25/2021   03:49:37  (  78.42,  95.55)    3.46                54
 04/25/2021   04:39:44   ( -78.40, -97.17) 04/25/2021   04:40:21  ( -78.40, -97.01)    3.44                37
 04/25/2021   05:30:43   (  78.40,  70.10) 04/25/2021   05:31:07  (  78.42,  70.14)    2.54                24
 04/25/2021   06:21:44   ( -78.41,-122.58) 04/25/2021   06:21:52  ( -78.44,-122.64)    3.24                 8
 04/25/2021   07:12:43   (  78.42,  44.69) 04/25/2021   07:12:37  (  78.43,  44.74)    1.68                 6
 04/25/2021   08:03:44   ( -78.43,-147.99) 04/25/2021   08:03:22  ( -78.45,-148.05)    2.40                22
 04/25/2021   08:54:43   (  78.43,  19.29) 04/25/2021   08:54:07  (  78.43,  19.33)    1.05                36
 04/25/2021   09:45:44   ( -78.44,-173.40) 04/25/2021   09:44:52  ( -78.45,-173.45)    1.66                52
 04/25/2021   10:36:43   (  78.44,  -6.12) 04/25/2021   10:35:37  (  78.44,  -6.08)    1.11                66
 04/25/2021   11:27:35   ( -78.77, 163.38) 04/25/2021   11:26:31  ( -78.80, 159.05)   93.63                64