Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2015 5 14.  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)
 05/18/2015   21:09:32   ( -81.02,  -9.46) 05/18/2015   21:10:38  ( -81.02,  -9.42)    0.79                66
 05/18/2015   22:00:34   (  81.01, 158.08) 05/18/2015   22:01:23  (  81.01, 158.00)    1.46                49
 05/18/2015   22:51:34   ( -81.02, -34.71) 05/18/2015   22:52:08  ( -81.02, -34.83)    2.11                34
 05/18/2015   23:42:37   (  81.02, 132.46) 05/18/2015   23:42:53  (  81.01, 132.59)    2.19                16
 05/19/2015   00:33:36   ( -81.01, -59.96) 05/19/2015   00:33:37  ( -81.00, -59.88)    1.66                 1
 05/19/2015   01:24:39   (  81.01, 107.22) 05/19/2015   01:24:23  (  81.02, 107.17)    0.85                16
 05/19/2015   02:15:38   ( -81.01, -85.22) 05/19/2015   02:15:07  ( -81.01, -85.29)    1.35                31
 05/19/2015   03:06:41   (  81.01,  81.97) 05/19/2015   03:05:52  (  81.00,  82.12)    2.80                49