Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2015 9 17.  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)
 09/27/2015   15:37:56   (  81.04,-107.68) 09/27/2015   15:39:01  (  81.04,-107.67)    0.18                65
 09/27/2015   16:28:55   ( -81.04,  59.54) 09/27/2015   16:29:46  ( -81.05,  59.54)    0.33                51
 09/27/2015   17:19:58   (  81.04,-133.00) 09/27/2015   17:20:31  (  81.04,-133.12)    2.08                33
 09/27/2015   18:10:56   ( -81.04,  34.21) 09/27/2015   18:11:15  ( -81.05,  34.09)    2.22                19
 09/27/2015   19:01:59   (  81.04,-158.32) 09/27/2015   19:01:59  (  81.03,-158.20)    2.32                 0
 09/27/2015   19:52:58   ( -81.04,   8.89) 09/27/2015   19:52:44  ( -81.04,   9.01)    2.25                14
 09/27/2015   20:44:01   (  81.04, 176.36) 09/27/2015   20:43:29  (  81.03, 176.36)    0.39                32
 09/27/2015   21:35:00   ( -81.04, -16.44) 09/27/2015   21:34:14  ( -81.04, -16.43)    0.12                46