Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2016 4 28.  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)
 05/10/2016   21:43:50   (  81.00, 160.93) 05/10/2016   21:44:58  (  81.00, 160.97)    1.00                68
 05/10/2016   22:34:56   ( -81.00, -31.93) 05/10/2016   22:35:43  ( -81.00, -31.77)    3.00                47
 05/10/2016   23:25:52   (  81.00, 135.46) 05/10/2016   23:26:28  (  81.00, 135.56)    1.76                36
 05/11/2016   00:16:57   ( -81.01, -57.03) 05/11/2016   00:17:13  ( -81.00, -57.17)    2.61                16
 05/11/2016   01:07:54   (  81.00, 110.00) 05/11/2016   01:07:58  (  81.00, 110.15)    2.69                 4
 05/11/2016   01:58:59   ( -81.01, -82.50) 05/11/2016   01:58:43  ( -81.00, -82.58)    1.53                16
 05/11/2016   02:49:55   (  81.01,  84.91) 05/11/2016   02:49:28  (  81.00,  84.74)    2.99                27
 05/11/2016   03:41:01   ( -81.01,-107.97) 05/11/2016   03:40:13  ( -81.00,-107.99)    0.51                48