Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2020 4 18.  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)
 04/23/2020   18:43:53   (  79.41,-135.05) 04/23/2020   18:44:59  (  79.41,-134.88)    3.39                66
 04/23/2020   19:34:49   ( -79.44,  32.47) 04/23/2020   19:35:44  ( -79.42,  32.35)    3.04                55
 04/23/2020   20:25:53   (  79.43,-160.37) 04/23/2020   20:26:29  (  79.41,-160.28)    2.54                36
 04/23/2020   21:16:50   ( -79.43,   6.86) 04/23/2020   21:17:14  ( -79.42,   6.95)    1.84                24
 04/23/2020   22:07:54   (  79.42, 174.03) 04/23/2020   22:08:00  (  79.45, 174.05)    3.39                 6
 04/23/2020   22:58:50   ( -79.45, -18.46) 04/23/2020   22:58:44  ( -79.43, -18.45)    2.05                 6
 04/23/2020   23:49:54   (  79.44, 148.71) 04/23/2020   23:49:30  (  79.45, 148.64)    2.17                24
 04/24/2020   00:40:51   ( -79.43, -44.06) 04/24/2020   00:40:15  ( -79.46, -44.12)    3.41                36
 04/24/2020   01:31:54   (  79.46, 123.39) 04/24/2020   01:31:00  (  79.46, 123.24)    3.07                54
 04/24/2020   02:22:51   ( -79.45, -69.39) 04/24/2020   02:21:45  ( -79.47, -69.52)    3.13                66